chore: add copyright headers

Make sure we obey the REUSE (https://reuse.software) specification and the
origin, copyright owner, and license of all files are clearly marked.

The whole project is under the EPL-2.0, except for trivial files where copyright
is not applicable that are marked with the CC0-1.0 license. Moreover, code
included from third parties is also available under the respective license.

chore: add CONTRIBUTORS.md

List all authors and supporting organizations in accordance with the REUSE
specification.

569 files changed, 3406 insertions, 253 deletions

diff --git a/.editorconfig b/.editorconfig
index 64f6b1ac..7e5e9f16 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2021-2023 The Refinery Authors
+#
+# SPDX-License-Identifier: EPL-2.0
+
 root = true
 
 [*]
diff --git a/.gitattributes b/.gitattributes
index edd224df..847ceced 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2021-2023 The Refinery Authors
+#
+# SPDX-License-Identifier: CC0-1.0
+
 .yarn/releases/** binary
 .yarn/plugins/** binary
 *.cjs eol=lf
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 64aa23e4..15c62e89 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2021-2023 The Refinery Authors
+#
+# SPDX-License-Identifier: EPL-2.0
+
 name: Build
 on:
   push:
diff --git a/.gitignore b/.gitignore
index 559618ab..3117507a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2021-2023 The Refinery Authors
+#
+# SPDX-License-Identifier: CC0-1.0
+
 *._trace
 .classpath
 .idea/
diff --git a/.reuse/dep5 b/.reuse/dep5
new file mode 100644
index 00000000..523ac368
--- /dev/null
+++ b/.reuse/dep5
@@ -0,0 +1,29 @@
+Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
+Upstream-Name: Refinery
+Upstream-Contact: Dániel Varró <daniel.varro@liu.se>
+Source: https://github.com/graphs4value/refinery
+
+# Sample paragraph, commented out:
+#
+# Files: src/*
+# Copyright: $YEAR $NAME <$CONTACT>
+# License: ...
+
+Files: .yarn/releases/*.cjs
+Copyright: (c) 2016-present, Yarn Contributors. All rights reserved.
+           (c) 2014-present, Jon Schlinkert.
+           (c) 2014-2016, Jon Schlinkert.
+           (c) 2014-2017, Jon Schlinkert.
+           © 2015-2018, Jon Schlinkert.
+           (c) 2015-present, Jon Schlinkert.
+           (c) 2015, Rebecca Turner
+           Joyent, Inc. and other Node contributors.
+           Node.js contributors. All rights reserved.
+           (c) 2014 Blake Embrey (hello@blakeembrey.com)
+           (c) Facebook, Inc. and its affiliates.
+License: BSD-2-Clause AND MIT
+
+Files: .yarn/sdks/eslint/*
+       .yarn/sdks/typescript/*
+Copyright: (c) 2016-present, Yarn Contributors. All rights reserved.
+License: BSD-2-Clause
diff --git a/.vscode/extensions.json b/.vscode/extensions.json
index fa381855..8ff62a2a 100644
--- a/.vscode/extensions.json
+++ b/.vscode/extensions.json
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors
+ *
+ * SPDX-License-Identifier: CC0-1.0
+ */
 {
   "recommendations": [
     "EditorConfig.EditorConfig",
diff --git a/.vscode/settings.json b/.vscode/settings.json
index 66e5806b..52d43dba 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors
+ *
+ * SPDX-License-Identifier: CC0-1.0
+ */
 {
   "search.exclude": {
     "**/.yarn": true,
diff --git a/.yarn/sdks/integrations.yml.license b/.yarn/sdks/integrations.yml.license
new file mode 100644
index 00000000..08673e9c
--- /dev/null
+++ b/.yarn/sdks/integrations.yml.license
@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2021-2023 The Refinery Authors
+
+SPDX-License-Identifier: CC0-1.0
diff --git a/.yarnrc.yml b/.yarnrc.yml
index 37765fad..5b46a42b 100644
--- a/.yarnrc.yml
+++ b/.yarnrc.yml
@@ -1,6 +1,10 @@
+# SPDX-FileCopyrightText: 2021-2023 The Refinery Authors
+#
+# SPDX-License-Identifier: EPL-2.0
+
 enableGlobalCache: false
 
-enableTelemetry: 0
+enableTelemetry: false
 
 nodeLinker: pnp
 
diff --git a/CONTRIBUTORS.md b/CONTRIBUTORS.md
new file mode 100644
index 00000000..a408945b
--- /dev/null
+++ b/CONTRIBUTORS.md
@@ -0,0 +1,28 @@
+<!--
+  SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+
+  SPDX-License-Identifier: EPL-2.0
+-->
+
+# Contributors
+
+## The Refinery Authors
+
+**Project leader:** [Prof. Dániel Varró](https://liu.se/en/employee/danva91) &lt;daniel.varro@liu.se&gt;
+
+Other contributors (in alphabetical order):
+
+* Ficsor, Attila &lt;ficsorattila96@gmail.com&gt;
+* Garami, Bence &lt;85867500+garamibence@users.noreply.github.com&gt;
+* Golej, Márton Marcell &lt;golejmarci@gmail.com&gt;
+* Marussy, Kristóf &lt;marussy@mit.bme.hu&gt;
+* Semeráth, Oszkár &lt;semerath@mit.bme.hu&gt;
+
+## Support
+
+Refinery was also supported by
+
+* [Budapest University of Technology and Economics (BME)](https://www.bme.hu/?language=en), [Department of Measurement and Information Systems (MIT)](https://mit.bme.hu/eng/), [Critical Systems Research Group (FTSRG)](https://ftsrg.mit.bme.hu/en/)
+* [Department of Electrical and Computer Engineering](https://www.mcgill.ca/ece/), [McGill University](https://www.mcgill.ca/)
+* [2022 Amazon Research Awards](https://www.amazon.science/research-awards/recipients/daniel-varro-fall-2021)
+* [Linköping University](https://liu.se/en), [Department of Computer and Information Science (IDA)](https://liu.se/en/organisation/liu/ida), [Software and Systems (SAS)](https://liu.se/en/organisation/liu/ida/sas)
diff --git a/LICENSE b/LICENSE
index c43ced49..78756b5e 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,278 +1,80 @@
 Eclipse Public License - v 2.0
-
-    THE ACCOMPANYING PROGRAM IS PROVIDED UNDER THE TERMS OF THIS ECLIPSE
-    PUBLIC LICENSE ("AGREEMENT"). ANY USE, REPRODUCTION OR DISTRIBUTION
-    OF THE PROGRAM CONSTITUTES RECIPIENT'S ACCEPTANCE OF THIS AGREEMENT.
+THE ACCOMPANYING PROGRAM IS PROVIDED UNDER THE TERMS OF THIS ECLIPSE PUBLIC LICENSE (“AGREEMENT”). ANY USE, REPRODUCTION OR DISTRIBUTION OF THE PROGRAM CONSTITUTES RECIPIENT'S ACCEPTANCE OF THIS AGREEMENT.
 
 1. DEFINITIONS
+“Contribution” means:
 
-"Contribution" means:
-
-  a) in the case of the initial Contributor, the initial content
-     Distributed under this Agreement, and
-
-  b) in the case of each subsequent Contributor:
-     i) changes to the Program, and
-     ii) additions to the Program;
-  where such changes and/or additions to the Program originate from
-  and are Distributed by that particular Contributor. A Contribution
-  "originates" from a Contributor if it was added to the Program by
-  such Contributor itself or anyone acting on such Contributor's behalf.
-  Contributions do not include changes or additions to the Program that
-  are not Modified Works.
+a) in the case of the initial Contributor, the initial content Distributed under this Agreement, and
+b) in the case of each subsequent Contributor:
+i) changes to the Program, and
+ii) additions to the Program;
+where such changes and/or additions to the Program originate from and are Distributed by that particular Contributor. A Contribution “originates” from a Contributor if it was added to the Program by such Contributor itself or anyone acting on such Contributor's behalf. Contributions do not include changes or additions to the Program that are not Modified Works.
+“Contributor” means any person or entity that Distributes the Program.
 
-"Contributor" means any person or entity that Distributes the Program.
+“Licensed Patents” mean patent claims licensable by a Contributor which are necessarily infringed by the use or sale of its Contribution alone or when combined with the Program.
 
-"Licensed Patents" mean patent claims licensable by a Contributor which
-are necessarily infringed by the use or sale of its Contribution alone
-or when combined with the Program.
+“Program” means the Contributions Distributed in accordance with this Agreement.
 
-"Program" means the Contributions Distributed in accordance with this
-Agreement.
+“Recipient” means anyone who receives the Program under this Agreement or any Secondary License (as applicable), including Contributors.
 
-"Recipient" means anyone who receives the Program under this Agreement
-or any Secondary License (as applicable), including Contributors.
+“Derivative Works” shall mean any work, whether in Source Code or other form, that is based on (or derived from) the Program and for which the editorial revisions, annotations, elaborations, or other modifications represent, as a whole, an original work of authorship.
 
-"Derivative Works" shall mean any work, whether in Source Code or other
-form, that is based on (or derived from) the Program and for which the
-editorial revisions, annotations, elaborations, or other modifications
-represent, as a whole, an original work of authorship.
+“Modified Works” shall mean any work in Source Code or other form that results from an addition to, deletion from, or modification of the contents of the Program, including, for purposes of clarity any new file in Source Code form that contains any contents of the Program. Modified Works shall not include works that contain only declarations, interfaces, types, classes, structures, or files of the Program solely in each case in order to link to, bind by name, or subclass the Program or Modified Works thereof.
 
-"Modified Works" shall mean any work in Source Code or other form that
-results from an addition to, deletion from, or modification of the
-contents of the Program, including, for purposes of clarity any new file
-in Source Code form that contains any contents of the Program. Modified
-Works shall not include works that contain only declarations,
-interfaces, types, classes, structures, or files of the Program solely
-in each case in order to link to, bind by name, or subclass the Program
-or Modified Works thereof.
+“Distribute” means the acts of a) distributing or b) making available in any manner that enables the transfer of a copy.
 
-"Distribute" means the acts of a) distributing or b) making available
-in any manner that enables the transfer of a copy.
+“Source Code” means the form of a Program preferred for making modifications, including but not limited to software source code, documentation source, and configuration files.
 
-"Source Code" means the form of a Program preferred for making
-modifications, including but not limited to software source code,
-documentation source, and configuration files.
-
-"Secondary License" means either the GNU General Public License,
-Version 2.0, or any later versions of that license, including any
-exceptions or additional permissions as identified by the initial
-Contributor.
+“Secondary License” means either the GNU General Public License, Version 2.0, or any later versions of that license, including any exceptions or additional permissions as identified by the initial Contributor.
 
 2. GRANT OF RIGHTS
-
-  a) Subject to the terms of this Agreement, each Contributor hereby
-  grants Recipient a non-exclusive, worldwide, royalty-free copyright
-  license to reproduce, prepare Derivative Works of, publicly display,
-  publicly perform, Distribute and sublicense the Contribution of such
-  Contributor, if any, and such Derivative Works.
-
-  b) Subject to the terms of this Agreement, each Contributor hereby
-  grants Recipient a non-exclusive, worldwide, royalty-free patent
-  license under Licensed Patents to make, use, sell, offer to sell,
-  import and otherwise transfer the Contribution of such Contributor,
-  if any, in Source Code or other form. This patent license shall
-  apply to the combination of the Contribution and the Program if, at
-  the time the Contribution is added by the Contributor, such addition
-  of the Contribution causes such combination to be covered by the
-  Licensed Patents. The patent license shall not apply to any other
-  combinations which include the Contribution. No hardware per se is
-  licensed hereunder.
-
-  c) Recipient understands that although each Contributor grants the
-  licenses to its Contributions set forth herein, no assurances are
-  provided by any Contributor that the Program does not infringe the
-  patent or other intellectual property rights of any other entity.
-  Each Contributor disclaims any liability to Recipient for claims
-  brought by any other entity based on infringement of intellectual
-  property rights or otherwise. As a condition to exercising the
-  rights and licenses granted hereunder, each Recipient hereby
-  assumes sole responsibility to secure any other intellectual
-  property rights needed, if any. For example, if a third party
-  patent license is required to allow Recipient to Distribute the
-  Program, it is Recipient's responsibility to acquire that license
-  before distributing the Program.
-
-  d) Each Contributor represents that to its knowledge it has
-  sufficient copyright rights in its Contribution, if any, to grant
-  the copyright license set forth in this Agreement.
-
-  e) Notwithstanding the terms of any Secondary License, no
-  Contributor makes additional grants to any Recipient (other than
-  those set forth in this Agreement) as a result of such Recipient's
-  receipt of the Program under the terms of a Secondary License
-  (if permitted under the terms of Section 3).
-
+a) Subject to the terms of this Agreement, each Contributor hereby grants Recipient a non-exclusive, worldwide, royalty-free copyright license to reproduce, prepare Derivative Works of, publicly display, publicly perform, Distribute and sublicense the Contribution of such Contributor, if any, and such Derivative Works.
+b) Subject to the terms of this Agreement, each Contributor hereby grants Recipient a non-exclusive, worldwide, royalty-free patent license under Licensed Patents to make, use, sell, offer to sell, import and otherwise transfer the Contribution of such Contributor, if any, in Source Code or other form. This patent license shall apply to the combination of the Contribution and the Program if, at the time the Contribution is added by the Contributor, such addition of the Contribution causes such combination to be covered by the Licensed Patents. The patent license shall not apply to any other combinations which include the Contribution. No hardware per se is licensed hereunder.
+c) Recipient understands that although each Contributor grants the licenses to its Contributions set forth herein, no assurances are provided by any Contributor that the Program does not infringe the patent or other intellectual property rights of any other entity. Each Contributor disclaims any liability to Recipient for claims brought by any other entity based on infringement of intellectual property rights or otherwise. As a condition to exercising the rights and licenses granted hereunder, each Recipient hereby assumes sole responsibility to secure any other intellectual property rights needed, if any. For example, if a third party patent license is required to allow Recipient to Distribute the Program, it is Recipient's responsibility to acquire that license before distributing the Program.
+d) Each Contributor represents that to its knowledge it has sufficient copyright rights in its Contribution, if any, to grant the copyright license set forth in this Agreement.
+e) Notwithstanding the terms of any Secondary License, no Contributor makes additional grants to any Recipient (other than those set forth in this Agreement) as a result of such Recipient's receipt of the Program under the terms of a Secondary License (if permitted under the terms of Section 3).
 3. REQUIREMENTS
-
 3.1 If a Contributor Distributes the Program in any form, then:
 
-  a) the Program must also be made available as Source Code, in
-  accordance with section 3.2, and the Contributor must accompany
-  the Program with a statement that the Source Code for the Program
-  is available under this Agreement, and informs Recipients how to
-  obtain it in a reasonable manner on or through a medium customarily
-  used for software exchange; and
-
-  b) the Contributor may Distribute the Program under a license
-  different than this Agreement, provided that such license:
-     i) effectively disclaims on behalf of all other Contributors all
-     warranties and conditions, express and implied, including
-     warranties or conditions of title and non-infringement, and
-     implied warranties or conditions of merchantability and fitness
-     for a particular purpose;
-
-     ii) effectively excludes on behalf of all other Contributors all
-     liability for damages, including direct, indirect, special,
-     incidental and consequential damages, such as lost profits;
-
-     iii) does not attempt to limit or alter the recipients' rights
-     in the Source Code under section 3.2; and
-
-     iv) requires any subsequent distribution of the Program by any
-     party to be under a license that satisfies the requirements
-     of this section 3.
-
+a) the Program must also be made available as Source Code, in accordance with section 3.2, and the Contributor must accompany the Program with a statement that the Source Code for the Program is available under this Agreement, and informs Recipients how to obtain it in a reasonable manner on or through a medium customarily used for software exchange; and
+b) the Contributor may Distribute the Program under a license different than this Agreement, provided that such license:
+i) effectively disclaims on behalf of all other Contributors all warranties and conditions, express and implied, including warranties or conditions of title and non-infringement, and implied warranties or conditions of merchantability and fitness for a particular purpose;
+ii) effectively excludes on behalf of all other Contributors all liability for damages, including direct, indirect, special, incidental and consequential damages, such as lost profits;
+iii) does not attempt to limit or alter the recipients' rights in the Source Code under section 3.2; and
+iv) requires any subsequent distribution of the Program by any party to be under a license that satisfies the requirements of this section 3.
 3.2 When the Program is Distributed as Source Code:
 
-  a) it must be made available under this Agreement, or if the
-  Program (i) is combined with other material in a separate file or
-  files made available under a Secondary License, and (ii) the initial
-  Contributor attached to the Source Code the notice described in
-  Exhibit A of this Agreement, then the Program may be made available
-  under the terms of such Secondary Licenses, and
-
-  b) a copy of this Agreement must be included with each copy of
-  the Program.
-
-3.3 Contributors may not remove or alter any copyright, patent,
-trademark, attribution notices, disclaimers of warranty, or limitations
-of liability ("notices") contained within the Program from any copy of
-the Program which they Distribute, provided that Contributors may add
-their own appropriate notices.
+a) it must be made available under this Agreement, or if the Program (i) is combined with other material in a separate file or files made available under a Secondary License, and (ii) the initial Contributor attached to the Source Code the notice described in Exhibit A of this Agreement, then the Program may be made available under the terms of such Secondary Licenses, and
+b) a copy of this Agreement must be included with each copy of the Program.
+3.3 Contributors may not remove or alter any copyright, patent, trademark, attribution notices, disclaimers of warranty, or limitations of liability (‘notices’) contained within the Program from any copy of the Program which they Distribute, provided that Contributors may add their own appropriate notices.
 
 4. COMMERCIAL DISTRIBUTION
+Commercial distributors of software may accept certain responsibilities with respect to end users, business partners and the like. While this license is intended to facilitate the commercial use of the Program, the Contributor who includes the Program in a commercial product offering should do so in a manner which does not create potential liability for other Contributors. Therefore, if a Contributor includes the Program in a commercial product offering, such Contributor (“Commercial Contributor”) hereby agrees to defend and indemnify every other Contributor (“Indemnified Contributor”) against any losses, damages and costs (collectively “Losses”) arising from claims, lawsuits and other legal actions brought by a third party against the Indemnified Contributor to the extent caused by the acts or omissions of such Commercial Contributor in connection with its distribution of the Program in a commercial product offering. The obligations in this section do not apply to any claims or Losses relating to any actual or alleged intellectual property infringement. In order to qualify, an Indemnified Contributor must: a) promptly notify the Commercial Contributor in writing of such claim, and b) allow the Commercial Contributor to control, and cooperate with the Commercial Contributor in, the defense and any related settlement negotiations. The Indemnified Contributor may participate in any such claim at its own expense.
 
-Commercial distributors of software may accept certain responsibilities
-with respect to end users, business partners and the like. While this
-license is intended to facilitate the commercial use of the Program,
-the Contributor who includes the Program in a commercial product
-offering should do so in a manner which does not create potential
-liability for other Contributors. Therefore, if a Contributor includes
-the Program in a commercial product offering, such Contributor
-("Commercial Contributor") hereby agrees to defend and indemnify every
-other Contributor ("Indemnified Contributor") against any losses,
-damages and costs (collectively "Losses") arising from claims, lawsuits
-and other legal actions brought by a third party against the Indemnified
-Contributor to the extent caused by the acts or omissions of such
-Commercial Contributor in connection with its distribution of the Program
-in a commercial product offering. The obligations in this section do not
-apply to any claims or Losses relating to any actual or alleged
-intellectual property infringement. In order to qualify, an Indemnified
-Contributor must: a) promptly notify the Commercial Contributor in
-writing of such claim, and b) allow the Commercial Contributor to control,
-and cooperate with the Commercial Contributor in, the defense and any
-related settlement negotiations. The Indemnified Contributor may
-participate in any such claim at its own expense.
-
-For example, a Contributor might include the Program in a commercial
-product offering, Product X. That Contributor is then a Commercial
-Contributor. If that Commercial Contributor then makes performance
-claims, or offers warranties related to Product X, those performance
-claims and warranties are such Commercial Contributor's responsibility
-alone. Under this section, the Commercial Contributor would have to
-defend claims against the other Contributors related to those performance
-claims and warranties, and if a court requires any other Contributor to
-pay any damages as a result, the Commercial Contributor must pay
-those damages.
+For example, a Contributor might include the Program in a commercial product offering, Product X. That Contributor is then a Commercial Contributor. If that Commercial Contributor then makes performance claims, or offers warranties related to Product X, those performance claims and warranties are such Commercial Contributor's responsibility alone. Under this section, the Commercial Contributor would have to defend claims against the other Contributors related to those performance claims and warranties, and if a court requires any other Contributor to pay any damages as a result, the Commercial Contributor must pay those damages.
 
 5. NO WARRANTY
-
-EXCEPT AS EXPRESSLY SET FORTH IN THIS AGREEMENT, AND TO THE EXTENT
-PERMITTED BY APPLICABLE LAW, THE PROGRAM IS PROVIDED ON AN "AS IS"
-BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, EITHER EXPRESS OR
-IMPLIED INCLUDING, WITHOUT LIMITATION, ANY WARRANTIES OR CONDITIONS OF
-TITLE, NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR
-PURPOSE. Each Recipient is solely responsible for determining the
-appropriateness of using and distributing the Program and assumes all
-risks associated with its exercise of rights under this Agreement,
-including but not limited to the risks and costs of program errors,
-compliance with applicable laws, damage to or loss of data, programs
-or equipment, and unavailability or interruption of operations.
+EXCEPT AS EXPRESSLY SET FORTH IN THIS AGREEMENT, AND TO THE EXTENT PERMITTED BY APPLICABLE LAW, THE PROGRAM IS PROVIDED ON AN “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is solely responsible for determining the appropriateness of using and distributing the Program and assumes all risks associated with its exercise of rights under this Agreement, including but not limited to the risks and costs of program errors, compliance with applicable laws, damage to or loss of data, programs or equipment, and unavailability or interruption of operations.
 
 6. DISCLAIMER OF LIABILITY
-
-EXCEPT AS EXPRESSLY SET FORTH IN THIS AGREEMENT, AND TO THE EXTENT
-PERMITTED BY APPLICABLE LAW, NEITHER RECIPIENT NOR ANY CONTRIBUTORS
-SHALL HAVE ANY LIABILITY FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
-EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING WITHOUT LIMITATION LOST
-PROFITS), HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
-CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
-ARISING IN ANY WAY OUT OF THE USE OR DISTRIBUTION OF THE PROGRAM OR THE
-EXERCISE OF ANY RIGHTS GRANTED HEREUNDER, EVEN IF ADVISED OF THE
-POSSIBILITY OF SUCH DAMAGES.
+EXCEPT AS EXPRESSLY SET FORTH IN THIS AGREEMENT, AND TO THE EXTENT PERMITTED BY APPLICABLE LAW, NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
 
 7. GENERAL
+If any provision of this Agreement is invalid or unenforceable under applicable law, it shall not affect the validity or enforceability of the remainder of the terms of this Agreement, and without further action by the parties hereto, such provision shall be reformed to the minimum extent necessary to make such provision valid and enforceable.
 
-If any provision of this Agreement is invalid or unenforceable under
-applicable law, it shall not affect the validity or enforceability of
-the remainder of the terms of this Agreement, and without further
-action by the parties hereto, such provision shall be reformed to the
-minimum extent necessary to make such provision valid and enforceable.
-
-If Recipient institutes patent litigation against any entity
-(including a cross-claim or counterclaim in a lawsuit) alleging that the
-Program itself (excluding combinations of the Program with other software
-or hardware) infringes such Recipient's patent(s), then such Recipient's
-rights granted under Section 2(b) shall terminate as of the date such
-litigation is filed.
-
-All Recipient's rights under this Agreement shall terminate if it
-fails to comply with any of the material terms or conditions of this
-Agreement and does not cure such failure in a reasonable period of
-time after becoming aware of such noncompliance. If all Recipient's
-rights under this Agreement terminate, Recipient agrees to cease use
-and distribution of the Program as soon as reasonably practicable.
-However, Recipient's obligations under this Agreement and any licenses
-granted by Recipient relating to the Program shall continue and survive.
-
-Everyone is permitted to copy and distribute copies of this Agreement,
-but in order to avoid inconsistency the Agreement is copyrighted and
-may only be modified in the following manner. The Agreement Steward
-reserves the right to publish new versions (including revisions) of
-this Agreement from time to time. No one other than the Agreement
-Steward has the right to modify this Agreement. The Eclipse Foundation
-is the initial Agreement Steward. The Eclipse Foundation may assign the
-responsibility to serve as the Agreement Steward to a suitable separate
-entity. Each new version of the Agreement will be given a distinguishing
-version number. The Program (including Contributions) may always be
-Distributed subject to the version of the Agreement under which it was
-received. In addition, after a new version of the Agreement is published,
-Contributor may elect to Distribute the Program (including its
-Contributions) under the new version.
+If Recipient institutes patent litigation against any entity (including a cross-claim or counterclaim in a lawsuit) alleging that the Program itself (excluding combinations of the Program with other software or hardware) infringes such Recipient's patent(s), then such Recipient's rights granted under Section 2(b) shall terminate as of the date such litigation is filed.
 
-Except as expressly stated in Sections 2(a) and 2(b) above, Recipient
-receives no rights or licenses to the intellectual property of any
-Contributor under this Agreement, whether expressly, by implication,
-estoppel or otherwise. All rights in the Program not expressly granted
-under this Agreement are reserved. Nothing in this Agreement is intended
-to be enforceable by any entity that is not a Contributor or Recipient.
-No third-party beneficiary rights are created under this Agreement.
+All Recipient's rights under this Agreement shall terminate if it fails to comply with any of the material terms or conditions of this Agreement and does not cure such failure in a reasonable period of time after becoming aware of such noncompliance. If all Recipient's rights under this Agreement terminate, Recipient agrees to cease use and distribution of the Program as soon as reasonably practicable. However, Recipient's obligations under this Agreement and any licenses granted by Recipient relating to the Program shall continue and survive.
 
-Exhibit A - Form of Secondary Licenses Notice
+Everyone is permitted to copy and distribute copies of this Agreement, but in order to avoid inconsistency the Agreement is copyrighted and may only be modified in the following manner. The Agreement Steward reserves the right to publish new versions (including revisions) of this Agreement from time to time. No one other than the Agreement Steward has the right to modify this Agreement. The Eclipse Foundation is the initial Agreement Steward. The Eclipse Foundation may assign the responsibility to serve as the Agreement Steward to a suitable separate entity. Each new version of the Agreement will be given a distinguishing version number. The Program (including Contributions) may always be Distributed subject to the version of the Agreement under which it was received. In addition, after a new version of the Agreement is published, Contributor may elect to Distribute the Program (including its Contributions) under the new version.
 
-"This Source Code may also be made available under the following
-Secondary Licenses when the conditions for such availability set forth
-in the Eclipse Public License, v. 2.0 are satisfied: {name license(s),
-version(s), and exceptions or additional permissions here}."
+Except as expressly stated in Sections 2(a) and 2(b) above, Recipient receives no rights or licenses to the intellectual property of any Contributor under this Agreement, whether expressly, by implication, estoppel or otherwise. All rights in the Program not expressly granted under this Agreement are reserved. Nothing in this Agreement is intended to be enforceable by any entity that is not a Contributor or Recipient. No third-party beneficiary rights are created under this Agreement.
 
-  Simply including a copy of this Agreement, including this Exhibit A
-  is not sufficient to license the Source Code under Secondary Licenses.
+Exhibit A – Form of Secondary Licenses Notice
+“This Source Code may also be made available under the following Secondary Licenses when the conditions for such availability set forth in the Eclipse Public License, v. 2.0 are satisfied: {name license(s), version(s), and exceptions or additional permissions here}.”
 
-  If it is not possible or desirable to put the notice in a particular
-  file, then You may include the notice in a location (such as a LICENSE
-  file in a relevant directory) where a recipient would be likely to
-  look for such a notice.
+Simply including a copy of this Agreement, including this Exhibit A is not sufficient to license the Source Code under Secondary Licenses.
 
-  You may add additional accurate notices of copyright ownership.
+If it is not possible or desirable to put the notice in a particular file, then You may include the notice in a location (such as a LICENSE file in a relevant directory) where a recipient would be likely to look for such a notice.
 
+You may add additional accurate notices of copyright ownership.
diff --git a/LICENSES/Apache-2.0.txt b/LICENSES/Apache-2.0.txt
new file mode 100644
index 00000000..137069b8
--- /dev/null
+++ b/LICENSES/Apache-2.0.txt
@@ -0,0 +1,73 @@
+Apache License
+Version 2.0, January 2004
+http://www.apache.org/licenses/
+
+TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+1. Definitions.
+
+"License" shall mean the terms and conditions for use, reproduction, and distribution as defined by Sections 1 through 9 of this document.
+
+"Licensor" shall mean the copyright owner or entity authorized by the copyright owner that is granting the License.
+
+"Legal Entity" shall mean the union of the acting entity and all other entities that control, are controlled by, or are under common control with that entity. For the purposes of this definition, "control" means (i) the power, direct or indirect, to cause the direction or management of such entity, whether by contract or otherwise, or (ii) ownership of fifty percent (50%) or more of the outstanding shares, or (iii) beneficial ownership of such entity.
+
+"You" (or "Your") shall mean an individual or Legal Entity exercising permissions granted by this License.
+
+"Source" form shall mean the preferred form for making modifications, including but not limited to software source code, documentation source, and configuration files.
+
+"Object" form shall mean any form resulting from mechanical transformation or translation of a Source form, including but not limited to compiled object code, generated documentation, and conversions to other media types.
+
+"Work" shall mean the work of authorship, whether in Source or Object form, made available under the License, as indicated by a copyright notice that is included in or attached to the work (an example is provided in the Appendix below).
+
+"Derivative Works" shall mean any work, whether in Source or Object form, that is based on (or derived from) the Work and for which the editorial revisions, annotations, elaborations, or other modifications represent, as a whole, an original work of authorship. For the purposes of this License, Derivative Works shall not include works that remain separable from, or merely link (or bind by name) to the interfaces of, the Work and Derivative Works thereof.
+
+"Contribution" shall mean any work of authorship, including the original version of the Work and any modifications or additions to that Work or Derivative Works thereof, that is intentionally submitted to Licensor for inclusion in the Work by the copyright owner or by an individual or Legal Entity authorized to submit on behalf of the copyright owner. For the purposes of this definition, "submitted" means any form of electronic, verbal, or written communication sent to the Licensor or its representatives, including but not limited to communication on electronic mailing lists, source code control systems, and issue tracking systems that are managed by, or on behalf of, the Licensor for the purpose of discussing and improving the Work, but excluding communication that is conspicuously marked or otherwise designated in writing by the copyright owner as "Not a Contribution."
+
+"Contributor" shall mean Licensor and any individual or Legal Entity on behalf of whom a Contribution has been received by Licensor and subsequently incorporated within the Work.
+
+2. Grant of Copyright License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare Derivative Works of, publicly display, publicly perform, sublicense, and distribute the Work and such Derivative Works in Source or Object form.
+
+3. Grant of Patent License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable (except as stated in this section) patent license to make, have made, use, offer to sell, sell, import, and otherwise transfer the Work, where such license applies only to those patent claims licensable by such Contributor that are necessarily infringed by their Contribution(s) alone or by combination of their Contribution(s) with the Work to which such Contribution(s) was submitted. If You institute patent litigation against any entity (including a cross-claim or counterclaim in a lawsuit) alleging that the Work or a Contribution incorporated within the Work constitutes direct or contributory patent infringement, then any patent licenses granted to You under this License for that Work shall terminate as of the date such litigation is filed.
+
+4. Redistribution. You may reproduce and distribute copies of the Work or Derivative Works thereof in any medium, with or without modifications, and in Source or Object form, provided that You meet the following conditions:
+
+     (a) You must give any other recipients of the Work or Derivative Works a copy of this License; and
+
+     (b) You must cause any modified files to carry prominent notices stating that You changed the files; and
+
+     (c) You must retain, in the Source form of any Derivative Works that You distribute, all copyright, patent, trademark, and attribution notices from the Source form of the Work, excluding those notices that do not pertain to any part of the Derivative Works; and
+
+     (d) If the Work includes a "NOTICE" text file as part of its distribution, then any Derivative Works that You distribute must include a readable copy of the attribution notices contained within such NOTICE file, excluding those notices that do not pertain to any part of the Derivative Works, in at least one of the following places: within a NOTICE text file distributed as part of the Derivative Works; within the Source form or documentation, if provided along with the Derivative Works; or, within a display generated by the Derivative Works, if and wherever such third-party notices normally appear. The contents of the NOTICE file are for informational purposes only and do not modify the License. You may add Your own attribution notices within Derivative Works that You distribute, alongside or as an addendum to the NOTICE text from the Work, provided that such additional attribution notices cannot be construed as modifying the License.
+
+     You may add Your own copyright statement to Your modifications and may provide additional or different license terms and conditions for use, reproduction, or distribution of Your modifications, or for any such Derivative Works as a whole, provided Your use, reproduction, and distribution of the Work otherwise complies with the conditions stated in this License.
+
+5. Submission of Contributions. Unless You explicitly state otherwise, any Contribution intentionally submitted for inclusion in the Work by You to the Licensor shall be under the terms and conditions of this License, without any additional terms or conditions. Notwithstanding the above, nothing herein shall supersede or modify the terms of any separate license agreement you may have executed with Licensor regarding such Contributions.
+
+6. Trademarks. This License does not grant permission to use the trade names, trademarks, service marks, or product names of the Licensor, except as required for reasonable and customary use in describing the origin of the Work and reproducing the content of the NOTICE file.
+
+7. Disclaimer of Warranty. Unless required by applicable law or agreed to in writing, Licensor provides the Work (and each Contributor provides its Contributions) on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, including, without limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. You are solely responsible for determining the appropriateness of using or redistributing the Work and assume any risks associated with Your exercise of permissions under this License.
+
+8. Limitation of Liability. In no event and under no legal theory, whether in tort (including negligence), contract, or otherwise, unless required by applicable law (such as deliberate and grossly negligent acts) or agreed to in writing, shall any Contributor be liable to You for damages, including any direct, indirect, special, incidental, or consequential damages of any character arising as a result of this License or out of the use or inability to use the Work (including but not limited to damages for loss of goodwill, work stoppage, computer failure or malfunction, or any and all other commercial damages or losses), even if such Contributor has been advised of the possibility of such damages.
+
+9. Accepting Warranty or Additional Liability. While redistributing the Work or Derivative Works thereof, You may choose to offer, and charge a fee for, acceptance of support, warranty, indemnity, or other liability obligations and/or rights consistent with this License. However, in accepting such obligations, You may act only on Your own behalf and on Your sole responsibility, not on behalf of any other Contributor, and only if You agree to indemnify, defend, and hold each Contributor harmless for any liability incurred by, or claims asserted against, such Contributor by reason of your accepting any such warranty or additional liability.
+
+END OF TERMS AND CONDITIONS
+
+APPENDIX: How to apply the Apache License to your work.
+
+To apply the Apache License to your work, attach the following boilerplate notice, with the fields enclosed by brackets "[]" replaced with your own identifying information. (Don't include the brackets!)  The text should be enclosed in the appropriate comment syntax for the file format. We also recommend that a file or class name and description of purpose be included on the same "printed page" as the copyright notice for easier identification within third-party archives.
+
+Copyright [yyyy] [name of copyright owner]
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
diff --git a/LICENSES/BSD-2-Clause.txt b/LICENSES/BSD-2-Clause.txt
new file mode 100644
index 00000000..5f662b35
--- /dev/null
+++ b/LICENSES/BSD-2-Clause.txt
@@ -0,0 +1,9 @@
+Copyright (c) <year> <owner> 
+
+Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/LICENSES/CC0-1.0.txt b/LICENSES/CC0-1.0.txt
new file mode 100644
index 00000000..0e259d42
--- /dev/null
+++ b/LICENSES/CC0-1.0.txt
@@ -0,0 +1,121 @@
+Creative Commons Legal Code
+
+CC0 1.0 Universal
+
+    CREATIVE COMMONS CORPORATION IS NOT A LAW FIRM AND DOES NOT PROVIDE
+    LEGAL SERVICES. DISTRIBUTION OF THIS DOCUMENT DOES NOT CREATE AN
+    ATTORNEY-CLIENT RELATIONSHIP. CREATIVE COMMONS PROVIDES THIS
+    INFORMATION ON AN "AS-IS" BASIS. CREATIVE COMMONS MAKES NO WARRANTIES
+    REGARDING THE USE OF THIS DOCUMENT OR THE INFORMATION OR WORKS
+    PROVIDED HEREUNDER, AND DISCLAIMS LIABILITY FOR DAMAGES RESULTING FROM
+    THE USE OF THIS DOCUMENT OR THE INFORMATION OR WORKS PROVIDED
+    HEREUNDER.
+
+Statement of Purpose
+
+The laws of most jurisdictions throughout the world automatically confer
+exclusive Copyright and Related Rights (defined below) upon the creator
+and subsequent owner(s) (each and all, an "owner") of an original work of
+authorship and/or a database (each, a "Work").
+
+Certain owners wish to permanently relinquish those rights to a Work for
+the purpose of contributing to a commons of creative, cultural and
+scientific works ("Commons") that the public can reliably and without fear
+of later claims of infringement build upon, modify, incorporate in other
+works, reuse and redistribute as freely as possible in any form whatsoever
+and for any purposes, including without limitation commercial purposes.
+These owners may contribute to the Commons to promote the ideal of a free
+culture and the further production of creative, cultural and scientific
+works, or to gain reputation or greater distribution for their Work in
+part through the use and efforts of others.
+
+For these and/or other purposes and motivations, and without any
+expectation of additional consideration or compensation, the person
+associating CC0 with a Work (the "Affirmer"), to the extent that he or she
+is an owner of Copyright and Related Rights in the Work, voluntarily
+elects to apply CC0 to the Work and publicly distribute the Work under its
+terms, with knowledge of his or her Copyright and Related Rights in the
+Work and the meaning and intended legal effect of CC0 on those rights.
+
+1. Copyright and Related Rights. A Work made available under CC0 may be
+protected by copyright and related or neighboring rights ("Copyright and
+Related Rights"). Copyright and Related Rights include, but are not
+limited to, the following:
+
+  i. the right to reproduce, adapt, distribute, perform, display,
+     communicate, and translate a Work;
+ ii. moral rights retained by the original author(s) and/or performer(s);
+iii. publicity and privacy rights pertaining to a person's image or
+     likeness depicted in a Work;
+ iv. rights protecting against unfair competition in regards to a Work,
+     subject to the limitations in paragraph 4(a), below;
+  v. rights protecting the extraction, dissemination, use and reuse of data
+     in a Work;
+ vi. database rights (such as those arising under Directive 96/9/EC of the
+     European Parliament and of the Council of 11 March 1996 on the legal
+     protection of databases, and under any national implementation
+     thereof, including any amended or successor version of such
+     directive); and
+vii. other similar, equivalent or corresponding rights throughout the
+     world based on applicable law or treaty, and any national
+     implementations thereof.
+
+2. Waiver. To the greatest extent permitted by, but not in contravention
+of, applicable law, Affirmer hereby overtly, fully, permanently,
+irrevocably and unconditionally waives, abandons, and surrenders all of
+Affirmer's Copyright and Related Rights and associated claims and causes
+of action, whether now known or unknown (including existing as well as
+future claims and causes of action), in the Work (i) in all territories
+worldwide, (ii) for the maximum duration provided by applicable law or
+treaty (including future time extensions), (iii) in any current or future
+medium and for any number of copies, and (iv) for any purpose whatsoever,
+including without limitation commercial, advertising or promotional
+purposes (the "Waiver"). Affirmer makes the Waiver for the benefit of each
+member of the public at large and to the detriment of Affirmer's heirs and
+successors, fully intending that such Waiver shall not be subject to
+revocation, rescission, cancellation, termination, or any other legal or
+equitable action to disrupt the quiet enjoyment of the Work by the public
+as contemplated by Affirmer's express Statement of Purpose.
+
+3. Public License Fallback. Should any part of the Waiver for any reason
+be judged legally invalid or ineffective under applicable law, then the
+Waiver shall be preserved to the maximum extent permitted taking into
+account Affirmer's express Statement of Purpose. In addition, to the
+extent the Waiver is so judged Affirmer hereby grants to each affected
+person a royalty-free, non transferable, non sublicensable, non exclusive,
+irrevocable and unconditional license to exercise Affirmer's Copyright and
+Related Rights in the Work (i) in all territories worldwide, (ii) for the
+maximum duration provided by applicable law or treaty (including future
+time extensions), (iii) in any current or future medium and for any number
+of copies, and (iv) for any purpose whatsoever, including without
+limitation commercial, advertising or promotional purposes (the
+"License"). The License shall be deemed effective as of the date CC0 was
+applied by Affirmer to the Work. Should any part of the License for any
+reason be judged legally invalid or ineffective under applicable law, such
+partial invalidity or ineffectiveness shall not invalidate the remainder
+of the License, and in such case Affirmer hereby affirms that he or she
+will not (i) exercise any of his or her remaining Copyright and Related
+Rights in the Work or (ii) assert any associated claims and causes of
+action with respect to the Work, in either case contrary to Affirmer's
+express Statement of Purpose.
+
+4. Limitations and Disclaimers.
+
+ a. No trademark or patent rights held by Affirmer are waived, abandoned,
+    surrendered, licensed or otherwise affected by this document.
+ b. Affirmer offers the Work as-is and makes no representations or
+    warranties of any kind concerning the Work, express, implied,
+    statutory or otherwise, including without limitation warranties of
+    title, merchantability, fitness for a particular purpose, non
+    infringement, or the absence of latent or other defects, accuracy, or
+    the present or absence of errors, whether or not discoverable, all to
+    the greatest extent permissible under applicable law.
+ c. Affirmer disclaims responsibility for clearing rights of other persons
+    that may apply to the Work or any use thereof, including without
+    limitation any person's Copyright and Related Rights in the Work.
+    Further, Affirmer disclaims responsibility for obtaining any necessary
+    consents, permissions or other rights required for any use of the
+    Work.
+ d. Affirmer understands and acknowledges that Creative Commons is not a
+    party to this document and has no duty or obligation with respect to
+    this CC0 or use of the Work.
diff --git a/LICENSES/EPL-2.0.txt b/LICENSES/EPL-2.0.txt
new file mode 100644
index 00000000..78756b5e
--- /dev/null
+++ b/LICENSES/EPL-2.0.txt
@@ -0,0 +1,80 @@
+Eclipse Public License - v 2.0
+THE ACCOMPANYING PROGRAM IS PROVIDED UNDER THE TERMS OF THIS ECLIPSE PUBLIC LICENSE (“AGREEMENT”). ANY USE, REPRODUCTION OR DISTRIBUTION OF THE PROGRAM CONSTITUTES RECIPIENT'S ACCEPTANCE OF THIS AGREEMENT.
+
+1. DEFINITIONS
+“Contribution” means:
+
+a) in the case of the initial Contributor, the initial content Distributed under this Agreement, and
+b) in the case of each subsequent Contributor:
+i) changes to the Program, and
+ii) additions to the Program;
+where such changes and/or additions to the Program originate from and are Distributed by that particular Contributor. A Contribution “originates” from a Contributor if it was added to the Program by such Contributor itself or anyone acting on such Contributor's behalf. Contributions do not include changes or additions to the Program that are not Modified Works.
+“Contributor” means any person or entity that Distributes the Program.
+
+“Licensed Patents” mean patent claims licensable by a Contributor which are necessarily infringed by the use or sale of its Contribution alone or when combined with the Program.
+
+“Program” means the Contributions Distributed in accordance with this Agreement.
+
+“Recipient” means anyone who receives the Program under this Agreement or any Secondary License (as applicable), including Contributors.
+
+“Derivative Works” shall mean any work, whether in Source Code or other form, that is based on (or derived from) the Program and for which the editorial revisions, annotations, elaborations, or other modifications represent, as a whole, an original work of authorship.
+
+“Modified Works” shall mean any work in Source Code or other form that results from an addition to, deletion from, or modification of the contents of the Program, including, for purposes of clarity any new file in Source Code form that contains any contents of the Program. Modified Works shall not include works that contain only declarations, interfaces, types, classes, structures, or files of the Program solely in each case in order to link to, bind by name, or subclass the Program or Modified Works thereof.
+
+“Distribute” means the acts of a) distributing or b) making available in any manner that enables the transfer of a copy.
+
+“Source Code” means the form of a Program preferred for making modifications, including but not limited to software source code, documentation source, and configuration files.
+
+“Secondary License” means either the GNU General Public License, Version 2.0, or any later versions of that license, including any exceptions or additional permissions as identified by the initial Contributor.
+
+2. GRANT OF RIGHTS
+a) Subject to the terms of this Agreement, each Contributor hereby grants Recipient a non-exclusive, worldwide, royalty-free copyright license to reproduce, prepare Derivative Works of, publicly display, publicly perform, Distribute and sublicense the Contribution of such Contributor, if any, and such Derivative Works.
+b) Subject to the terms of this Agreement, each Contributor hereby grants Recipient a non-exclusive, worldwide, royalty-free patent license under Licensed Patents to make, use, sell, offer to sell, import and otherwise transfer the Contribution of such Contributor, if any, in Source Code or other form. This patent license shall apply to the combination of the Contribution and the Program if, at the time the Contribution is added by the Contributor, such addition of the Contribution causes such combination to be covered by the Licensed Patents. The patent license shall not apply to any other combinations which include the Contribution. No hardware per se is licensed hereunder.
+c) Recipient understands that although each Contributor grants the licenses to its Contributions set forth herein, no assurances are provided by any Contributor that the Program does not infringe the patent or other intellectual property rights of any other entity. Each Contributor disclaims any liability to Recipient for claims brought by any other entity based on infringement of intellectual property rights or otherwise. As a condition to exercising the rights and licenses granted hereunder, each Recipient hereby assumes sole responsibility to secure any other intellectual property rights needed, if any. For example, if a third party patent license is required to allow Recipient to Distribute the Program, it is Recipient's responsibility to acquire that license before distributing the Program.
+d) Each Contributor represents that to its knowledge it has sufficient copyright rights in its Contribution, if any, to grant the copyright license set forth in this Agreement.
+e) Notwithstanding the terms of any Secondary License, no Contributor makes additional grants to any Recipient (other than those set forth in this Agreement) as a result of such Recipient's receipt of the Program under the terms of a Secondary License (if permitted under the terms of Section 3).
+3. REQUIREMENTS
+3.1 If a Contributor Distributes the Program in any form, then:
+
+a) the Program must also be made available as Source Code, in accordance with section 3.2, and the Contributor must accompany the Program with a statement that the Source Code for the Program is available under this Agreement, and informs Recipients how to obtain it in a reasonable manner on or through a medium customarily used for software exchange; and
+b) the Contributor may Distribute the Program under a license different than this Agreement, provided that such license:
+i) effectively disclaims on behalf of all other Contributors all warranties and conditions, express and implied, including warranties or conditions of title and non-infringement, and implied warranties or conditions of merchantability and fitness for a particular purpose;
+ii) effectively excludes on behalf of all other Contributors all liability for damages, including direct, indirect, special, incidental and consequential damages, such as lost profits;
+iii) does not attempt to limit or alter the recipients' rights in the Source Code under section 3.2; and
+iv) requires any subsequent distribution of the Program by any party to be under a license that satisfies the requirements of this section 3.
+3.2 When the Program is Distributed as Source Code:
+
+a) it must be made available under this Agreement, or if the Program (i) is combined with other material in a separate file or files made available under a Secondary License, and (ii) the initial Contributor attached to the Source Code the notice described in Exhibit A of this Agreement, then the Program may be made available under the terms of such Secondary Licenses, and
+b) a copy of this Agreement must be included with each copy of the Program.
+3.3 Contributors may not remove or alter any copyright, patent, trademark, attribution notices, disclaimers of warranty, or limitations of liability (‘notices’) contained within the Program from any copy of the Program which they Distribute, provided that Contributors may add their own appropriate notices.
+
+4. COMMERCIAL DISTRIBUTION
+Commercial distributors of software may accept certain responsibilities with respect to end users, business partners and the like. While this license is intended to facilitate the commercial use of the Program, the Contributor who includes the Program in a commercial product offering should do so in a manner which does not create potential liability for other Contributors. Therefore, if a Contributor includes the Program in a commercial product offering, such Contributor (“Commercial Contributor”) hereby agrees to defend and indemnify every other Contributor (“Indemnified Contributor”) against any losses, damages and costs (collectively “Losses”) arising from claims, lawsuits and other legal actions brought by a third party against the Indemnified Contributor to the extent caused by the acts or omissions of such Commercial Contributor in connection with its distribution of the Program in a commercial product offering. The obligations in this section do not apply to any claims or Losses relating to any actual or alleged intellectual property infringement. In order to qualify, an Indemnified Contributor must: a) promptly notify the Commercial Contributor in writing of such claim, and b) allow the Commercial Contributor to control, and cooperate with the Commercial Contributor in, the defense and any related settlement negotiations. The Indemnified Contributor may participate in any such claim at its own expense.
+
+For example, a Contributor might include the Program in a commercial product offering, Product X. That Contributor is then a Commercial Contributor. If that Commercial Contributor then makes performance claims, or offers warranties related to Product X, those performance claims and warranties are such Commercial Contributor's responsibility alone. Under this section, the Commercial Contributor would have to defend claims against the other Contributors related to those performance claims and warranties, and if a court requires any other Contributor to pay any damages as a result, the Commercial Contributor must pay those damages.
+
+5. NO WARRANTY
+EXCEPT AS EXPRESSLY SET FORTH IN THIS AGREEMENT, AND TO THE EXTENT PERMITTED BY APPLICABLE LAW, THE PROGRAM IS PROVIDED ON AN “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is solely responsible for determining the appropriateness of using and distributing the Program and assumes all risks associated with its exercise of rights under this Agreement, including but not limited to the risks and costs of program errors, compliance with applicable laws, damage to or loss of data, programs or equipment, and unavailability or interruption of operations.
+
+6. DISCLAIMER OF LIABILITY
+EXCEPT AS EXPRESSLY SET FORTH IN THIS AGREEMENT, AND TO THE EXTENT PERMITTED BY APPLICABLE LAW, NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+
+7. GENERAL
+If any provision of this Agreement is invalid or unenforceable under applicable law, it shall not affect the validity or enforceability of the remainder of the terms of this Agreement, and without further action by the parties hereto, such provision shall be reformed to the minimum extent necessary to make such provision valid and enforceable.
+
+If Recipient institutes patent litigation against any entity (including a cross-claim or counterclaim in a lawsuit) alleging that the Program itself (excluding combinations of the Program with other software or hardware) infringes such Recipient's patent(s), then such Recipient's rights granted under Section 2(b) shall terminate as of the date such litigation is filed.
+
+All Recipient's rights under this Agreement shall terminate if it fails to comply with any of the material terms or conditions of this Agreement and does not cure such failure in a reasonable period of time after becoming aware of such noncompliance. If all Recipient's rights under this Agreement terminate, Recipient agrees to cease use and distribution of the Program as soon as reasonably practicable. However, Recipient's obligations under this Agreement and any licenses granted by Recipient relating to the Program shall continue and survive.
+
+Everyone is permitted to copy and distribute copies of this Agreement, but in order to avoid inconsistency the Agreement is copyrighted and may only be modified in the following manner. The Agreement Steward reserves the right to publish new versions (including revisions) of this Agreement from time to time. No one other than the Agreement Steward has the right to modify this Agreement. The Eclipse Foundation is the initial Agreement Steward. The Eclipse Foundation may assign the responsibility to serve as the Agreement Steward to a suitable separate entity. Each new version of the Agreement will be given a distinguishing version number. The Program (including Contributions) may always be Distributed subject to the version of the Agreement under which it was received. In addition, after a new version of the Agreement is published, Contributor may elect to Distribute the Program (including its Contributions) under the new version.
+
+Except as expressly stated in Sections 2(a) and 2(b) above, Recipient receives no rights or licenses to the intellectual property of any Contributor under this Agreement, whether expressly, by implication, estoppel or otherwise. All rights in the Program not expressly granted under this Agreement are reserved. Nothing in this Agreement is intended to be enforceable by any entity that is not a Contributor or Recipient. No third-party beneficiary rights are created under this Agreement.
+
+Exhibit A – Form of Secondary Licenses Notice
+“This Source Code may also be made available under the following Secondary Licenses when the conditions for such availability set forth in the Eclipse Public License, v. 2.0 are satisfied: {name license(s), version(s), and exceptions or additional permissions here}.”
+
+Simply including a copy of this Agreement, including this Exhibit A is not sufficient to license the Source Code under Secondary Licenses.
+
+If it is not possible or desirable to put the notice in a particular file, then You may include the notice in a location (such as a LICENSE file in a relevant directory) where a recipient would be likely to look for such a notice.
+
+You may add additional accurate notices of copyright ownership.
diff --git a/LICENSES/MIT.txt b/LICENSES/MIT.txt
new file mode 100644
index 00000000..2071b23b
--- /dev/null
+++ b/LICENSES/MIT.txt
@@ -0,0 +1,9 @@
+MIT License
+
+Copyright (c) <year> <copyright holders>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/README.md b/README.md
index 33d89786..4dbc3bf5 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,9 @@
+<!--
+  SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+
+  SPDX-License-Identifier: EPL-2.0
+-->
+
 # Refinery
 
 [![Build](https://github.com/graphs4value/refinery/actions/workflows/build.yml/badge.svg)](https://github.com/graphs4value/refinery/actions/workflows/build.yml) [![Quality Gate Status](https://sonarcloud.io/api/project_badges/measure?project=graphs4value_refinery&metric=alert_status)](https://sonarcloud.io/dashboard?id=graphs4value_refinery) [![Coverage](https://sonarcloud.io/api/project_badges/measure?project=graphs4value_refinery&metric=coverage)](https://sonarcloud.io/dashboard?id=graphs4value_refinery)
@@ -45,4 +51,9 @@ It is possible to import the project into IntelliJ IDEA, but it gives no editing
 
 ## License
 
-All code in this repository is available under the [Eclipse Public License - v 2.0](https://www.eclipse.org/legal/epl-2.0/).
+Copyright (c) 2021-2023 [The Refinery Authors](CONTRIBUTORS.md)
+
+Refinery is available under the [Eclipse Public License - v 2.0](https://www.eclipse.org/legal/epl-2.0/).
+
+Refinery complies with the [REUSE Specification – Version 3.0](https://reuse.software/) to provide copyright and licensing information to each file, including files available under other licenses.
+For more information, see the comments headers in each file and the license texts in the [LICENSES](LICENSES/) directory.
diff --git a/build.gradle.kts b/build.gradle.kts
index 5a673f33..ed1c8aa6 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 plugins {
         // Workaround for https://github.com/gradle/gradle/issues/22797
         @Suppress("DSL_SCOPE_VIOLATION")
diff --git a/buildSrc/build.gradle.kts b/buildSrc/build.gradle.kts
index 7a5ee5c4..90864a8f 100644
--- a/buildSrc/build.gradle.kts
+++ b/buildSrc/build.gradle.kts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 plugins {
         `kotlin-dsl`
         // Workaround for https://github.com/gradle/gradle/issues/22797
diff --git a/buildSrc/settings.gradle.kts b/buildSrc/settings.gradle.kts
index 8e6efa3d..1daa9bbd 100644
--- a/buildSrc/settings.gradle.kts
+++ b/buildSrc/settings.gradle.kts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 dependencyResolutionManagement {
         versionCatalogs {
                 create("libs") {
diff --git a/buildSrc/src/main/java/tools/refinery/gradle/utils/EclipseUtils.java b/buildSrc/src/main/java/tools/refinery/gradle/utils/EclipseUtils.java
index 1e33a95d..ac7ba3f4 100644
--- a/buildSrc/src/main/java/tools/refinery/gradle/utils/EclipseUtils.java
+++ b/buildSrc/src/main/java/tools/refinery/gradle/utils/EclipseUtils.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.gradle.utils;
 
 import groovy.lang.Closure;
diff --git a/buildSrc/src/main/java/tools/refinery/gradle/utils/SonarPropertiesUtils.java b/buildSrc/src/main/java/tools/refinery/gradle/utils/SonarPropertiesUtils.java
index 3810fccf..183cd56a 100644
--- a/buildSrc/src/main/java/tools/refinery/gradle/utils/SonarPropertiesUtils.java
+++ b/buildSrc/src/main/java/tools/refinery/gradle/utils/SonarPropertiesUtils.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.gradle.utils;
 
 import java.util.ArrayList;
diff --git a/buildSrc/src/main/kotlin/tools/refinery/gradle/eclipse.gradle.kts b/buildSrc/src/main/kotlin/tools/refinery/gradle/eclipse.gradle.kts
index 25e7e573..8bab1d2b 100644
--- a/buildSrc/src/main/kotlin/tools/refinery/gradle/eclipse.gradle.kts
+++ b/buildSrc/src/main/kotlin/tools/refinery/gradle/eclipse.gradle.kts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.gradle
 
 import java.util.Properties
diff --git a/buildSrc/src/main/kotlin/tools/refinery/gradle/frontend-workspace.gradle.kts b/buildSrc/src/main/kotlin/tools/refinery/gradle/frontend-workspace.gradle.kts
index 174a2d65..f1f6d952 100644
--- a/buildSrc/src/main/kotlin/tools/refinery/gradle/frontend-workspace.gradle.kts
+++ b/buildSrc/src/main/kotlin/tools/refinery/gradle/frontend-workspace.gradle.kts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.gradle
 
 plugins {
diff --git a/buildSrc/src/main/kotlin/tools/refinery/gradle/frontend-worktree.gradle.kts b/buildSrc/src/main/kotlin/tools/refinery/gradle/frontend-worktree.gradle.kts
index 3225a1b1..218f5207 100644
--- a/buildSrc/src/main/kotlin/tools/refinery/gradle/frontend-worktree.gradle.kts
+++ b/buildSrc/src/main/kotlin/tools/refinery/gradle/frontend-worktree.gradle.kts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.gradle
 
 import java.io.FileInputStream
diff --git a/buildSrc/src/main/kotlin/tools/refinery/gradle/internal/frontend-conventions.gradle.kts b/buildSrc/src/main/kotlin/tools/refinery/gradle/internal/frontend-conventions.gradle.kts
index b15de515..bd5d0197 100644
--- a/buildSrc/src/main/kotlin/tools/refinery/gradle/internal/frontend-conventions.gradle.kts
+++ b/buildSrc/src/main/kotlin/tools/refinery/gradle/internal/frontend-conventions.gradle.kts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.gradle.internal
 
 plugins {
diff --git a/buildSrc/src/main/kotlin/tools/refinery/gradle/internal/java-conventions.gradle.kts b/buildSrc/src/main/kotlin/tools/refinery/gradle/internal/java-conventions.gradle.kts
index 67bb5d88..d8deffae 100644
--- a/buildSrc/src/main/kotlin/tools/refinery/gradle/internal/java-conventions.gradle.kts
+++ b/buildSrc/src/main/kotlin/tools/refinery/gradle/internal/java-conventions.gradle.kts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.gradle.internal
 
 import org.gradle.accessors.dm.LibrariesForLibs
diff --git a/buildSrc/src/main/kotlin/tools/refinery/gradle/java-application.gradle.kts b/buildSrc/src/main/kotlin/tools/refinery/gradle/java-application.gradle.kts
index 269af11c..0924311b 100644
--- a/buildSrc/src/main/kotlin/tools/refinery/gradle/java-application.gradle.kts
+++ b/buildSrc/src/main/kotlin/tools/refinery/gradle/java-application.gradle.kts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.gradle
 
 import org.gradle.accessors.dm.LibrariesForLibs
diff --git a/buildSrc/src/main/kotlin/tools/refinery/gradle/java-library.gradle.kts b/buildSrc/src/main/kotlin/tools/refinery/gradle/java-library.gradle.kts
index 084f65ae..3aff3833 100644
--- a/buildSrc/src/main/kotlin/tools/refinery/gradle/java-library.gradle.kts
+++ b/buildSrc/src/main/kotlin/tools/refinery/gradle/java-library.gradle.kts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.gradle
 
 plugins {
diff --git a/buildSrc/src/main/kotlin/tools/refinery/gradle/java-test-fixtures.gradle.kts b/buildSrc/src/main/kotlin/tools/refinery/gradle/java-test-fixtures.gradle.kts
index 7e599c3f..a28484d4 100644
--- a/buildSrc/src/main/kotlin/tools/refinery/gradle/java-test-fixtures.gradle.kts
+++ b/buildSrc/src/main/kotlin/tools/refinery/gradle/java-test-fixtures.gradle.kts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.gradle
 
 import org.gradle.plugins.ide.eclipse.model.AbstractClasspathEntry
diff --git a/buildSrc/src/main/kotlin/tools/refinery/gradle/jmh.gradle.kts b/buildSrc/src/main/kotlin/tools/refinery/gradle/jmh.gradle.kts
index eda7d5c6..6fb8fbac 100644
--- a/buildSrc/src/main/kotlin/tools/refinery/gradle/jmh.gradle.kts
+++ b/buildSrc/src/main/kotlin/tools/refinery/gradle/jmh.gradle.kts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.gradle
 
 import org.gradle.accessors.dm.LibrariesForLibs
diff --git a/buildSrc/src/main/kotlin/tools/refinery/gradle/mwe2.gradle.kts b/buildSrc/src/main/kotlin/tools/refinery/gradle/mwe2.gradle.kts
index 8eeabf47..f4381434 100644
--- a/buildSrc/src/main/kotlin/tools/refinery/gradle/mwe2.gradle.kts
+++ b/buildSrc/src/main/kotlin/tools/refinery/gradle/mwe2.gradle.kts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.gradle
 
 import org.gradle.accessors.dm.LibrariesForLibs
diff --git a/buildSrc/src/main/kotlin/tools/refinery/gradle/sonarqube.gradle.kts b/buildSrc/src/main/kotlin/tools/refinery/gradle/sonarqube.gradle.kts
index ebd9170a..93406492 100644
--- a/buildSrc/src/main/kotlin/tools/refinery/gradle/sonarqube.gradle.kts
+++ b/buildSrc/src/main/kotlin/tools/refinery/gradle/sonarqube.gradle.kts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.gradle
 
 plugins {
diff --git a/buildSrc/src/main/kotlin/tools/refinery/gradle/xtext-generated.gradle.kts b/buildSrc/src/main/kotlin/tools/refinery/gradle/xtext-generated.gradle.kts
index 25aeb826..59fe921b 100644
--- a/buildSrc/src/main/kotlin/tools/refinery/gradle/xtext-generated.gradle.kts
+++ b/buildSrc/src/main/kotlin/tools/refinery/gradle/xtext-generated.gradle.kts
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.gradle
 
 import tools.refinery.gradle.utils.SonarPropertiesUtils
diff --git a/gradle.properties b/gradle.properties
index 8faaa0eb..d6faa150 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+#
+# SPDX-License-Identifier: EPL-2.0
+
 file.encoding=UTF-8
 frontend.nodeVersion=18.15.0
 frontend.yarnVersion=4.0.0-rc.42
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index fe5966af..113bf3a5 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+#
+# SPDX-License-Identifier: EPL-2.0
+
 [versions]
 eclipseCollections = "12.0.0.M1"
 jetty = "12.0.0.beta0"
diff --git a/gradle/wrapper/gradle-wrapper.jar.license b/gradle/wrapper/gradle-wrapper.jar.license
new file mode 100644
index 00000000..13cd9906
--- /dev/null
+++ b/gradle/wrapper/gradle-wrapper.jar.license
@@ -0,0 +1,3 @@
+Copyright © 2015-2021 the original authors.
+
+SPDX-License-Identifier: Apache-2.0
diff --git a/gradle/wrapper/gradle-wrapper.properties.license b/gradle/wrapper/gradle-wrapper.properties.license
new file mode 100644
index 00000000..13cd9906
--- /dev/null
+++ b/gradle/wrapper/gradle-wrapper.properties.license
@@ -0,0 +1,3 @@
+Copyright © 2015-2021 the original authors.
+
+SPDX-License-Identifier: Apache-2.0
diff --git a/gradlew.bat.license b/gradlew.bat.license
new file mode 100644
index 00000000..0bcf26f6
--- /dev/null
+++ b/gradlew.bat.license
@@ -0,0 +1,3 @@
+Copyright 2015 the original author or authors.
+
+SPDX-License-Identifier: Apache-2.0
diff --git a/gradlew.license b/gradlew.license
new file mode 100644
index 00000000..13cd9906
--- /dev/null
+++ b/gradlew.license
@@ -0,0 +1,3 @@
+Copyright © 2015-2021 the original authors.
+
+SPDX-License-Identifier: Apache-2.0
diff --git a/package.json b/package.json
index 2da37157..c714ecd0 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,22 @@
 {
+  "//": [
+    "SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>",
+    "",
+    "SPDX-License-Identifier: EPL-2.0"
+  ],
   "name": "@refinery/root",
   "version": "0.0.0",
   "private": true,
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/graphs4value/refinery.git"
+  },
+  "author": "The Refinery Authors <https://refinery.tools/>",
+  "license": "EPL-2.0",
+  "bugs": {
+    "url": "https://github.com/graphs4value/refinery/issues"
+  },
+  "homepage": "https://refinery.tools",
   "workspaces": [
     "subprojects/frontend"
   ],
diff --git a/settings.gradle.kts b/settings.gradle.kts
index cca283dc..2b1c179d 100644
--- a/settings.gradle.kts
+++ b/settings.gradle.kts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 rootProject.name = "refinery"
 
 include(
diff --git a/subprojects/frontend/.eslintrc.cjs b/subprojects/frontend/.eslintrc.cjs
index dc03d721..466e5668 100644
--- a/subprojects/frontend/.eslintrc.cjs
+++ b/subprojects/frontend/.eslintrc.cjs
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 const path = require('node:path');
 
 // Allow the Codium ESLint plugin to find `tsconfig.json` from the repository root.
diff --git a/subprojects/frontend/assets-src/favicon.svg.license b/subprojects/frontend/assets-src/favicon.svg.license
new file mode 100644
index 00000000..e5db6ccd
--- /dev/null
+++ b/subprojects/frontend/assets-src/favicon.svg.license
@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+
+SPDX-License-Identifier: EPL-2.0
diff --git a/subprojects/frontend/assets-src/icon.svg.license b/subprojects/frontend/assets-src/icon.svg.license
new file mode 100644
index 00000000..e5db6ccd
--- /dev/null
+++ b/subprojects/frontend/assets-src/icon.svg.license
@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+
+SPDX-License-Identifier: EPL-2.0
diff --git a/subprojects/frontend/assets-src/mask-icon.svg.license b/subprojects/frontend/assets-src/mask-icon.svg.license
new file mode 100644
index 00000000..e5db6ccd
--- /dev/null
+++ b/subprojects/frontend/assets-src/mask-icon.svg.license
@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+
+SPDX-License-Identifier: EPL-2.0
diff --git a/subprojects/frontend/build.gradle.kts b/subprojects/frontend/build.gradle.kts
index 80f10f7e..9fd99742 100644
--- a/subprojects/frontend/build.gradle.kts
+++ b/subprojects/frontend/build.gradle.kts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import org.siouan.frontendgradleplugin.infrastructure.gradle.RunYarn
 import tools.refinery.gradle.utils.SonarPropertiesUtils
 
diff --git a/subprojects/frontend/config/backendConfigVitePlugin.ts b/subprojects/frontend/config/backendConfigVitePlugin.ts
index 7a6bc3db..3bffce3a 100644
--- a/subprojects/frontend/config/backendConfigVitePlugin.ts
+++ b/subprojects/frontend/config/backendConfigVitePlugin.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import type { PluginOption } from 'vite';
 
 import type BackendConfig from '../src/xtext/BackendConfig';
diff --git a/subprojects/frontend/config/detectDevModeOptions.ts b/subprojects/frontend/config/detectDevModeOptions.ts
index b3696241..665204dc 100644
--- a/subprojects/frontend/config/detectDevModeOptions.ts
+++ b/subprojects/frontend/config/detectDevModeOptions.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import type { PluginOption, ServerOptions } from 'vite';
 
 import backendConfigVitePlugin, {
diff --git a/subprojects/frontend/config/eslintReport.cjs b/subprojects/frontend/config/eslintReport.cjs
index 5bf6a041..7c4b7bd6 100644
--- a/subprojects/frontend/config/eslintReport.cjs
+++ b/subprojects/frontend/config/eslintReport.cjs
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 const { writeFile } = require('node:fs/promises');
 const path = require('node:path');
 const { Readable } = require('node:stream');
diff --git a/subprojects/frontend/config/fetchPackageMetadata.ts b/subprojects/frontend/config/fetchPackageMetadata.ts
index 50807b03..02e16d57 100644
--- a/subprojects/frontend/config/fetchPackageMetadata.ts
+++ b/subprojects/frontend/config/fetchPackageMetadata.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import { readFile } from 'node:fs/promises';
 import path from 'node:path';
 
diff --git a/subprojects/frontend/config/manifest.ts b/subprojects/frontend/config/manifest.ts
index 3cec777c..1822dc7c 100644
--- a/subprojects/frontend/config/manifest.ts
+++ b/subprojects/frontend/config/manifest.ts
@@ -1,10 +1,16 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import type { ManifestOptions } from 'vite-plugin-pwa';
 
 const manifest: Partial<ManifestOptions> = {
   lang: 'en-US',
   name: 'Refinery',
   short_name: 'Refinery',
-  description: 'An efficient graph sovler for generating well-formed models',
+  description: 'An efficient graph solver for generating well-formed models',
   theme_color: '#f5f5f5',
   display_override: ['window-controls-overlay'],
   display: 'standalone',
diff --git a/subprojects/frontend/config/minifyHTMLVitePlugin.ts b/subprojects/frontend/config/minifyHTMLVitePlugin.ts
index 18336d4d..7c08c488 100644
--- a/subprojects/frontend/config/minifyHTMLVitePlugin.ts
+++ b/subprojects/frontend/config/minifyHTMLVitePlugin.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import { minify, type Options as TerserOptions } from 'html-minifier-terser';
 import type { PluginOption } from 'vite';
 
diff --git a/subprojects/frontend/config/preloadFontsVitePlugin.ts b/subprojects/frontend/config/preloadFontsVitePlugin.ts
index bc6f8eaf..5c04477a 100644
--- a/subprojects/frontend/config/preloadFontsVitePlugin.ts
+++ b/subprojects/frontend/config/preloadFontsVitePlugin.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import micromatch from 'micromatch';
 import type { PluginOption } from 'vite';
 
diff --git a/subprojects/frontend/index.html b/subprojects/frontend/index.html
index 8b6814eb..e1d2bf14 100644
--- a/subprojects/frontend/index.html
+++ b/subprojects/frontend/index.html
@@ -1,4 +1,9 @@
 <!DOCTYPE html>
+<!--
+  SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+
+  SPDX-License-Identifier: EPL-2.0
+-->
 <html lang="en-US">
   <head>
     <meta charset="utf-8">
diff --git a/subprojects/frontend/package.json b/subprojects/frontend/package.json
index e6bcc89e..cd96a574 100644
--- a/subprojects/frontend/package.json
+++ b/subprojects/frontend/package.json
@@ -1,4 +1,9 @@
 {
+  "//": [
+    "SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>",
+    "",
+    "SPDX-License-Identifier: EPL-2.0"
+  ],
   "name": "@refinery/frontend",
   "version": "0.0.0",
   "description": "Web frontend for Refinery",
@@ -16,10 +21,10 @@
     "type": "git",
     "url": "git+https://github.com/graphs4value/refinery.git"
   },
-  "author": "Refinery authors",
+  "author": "The Refinery Authors <https://refinery.tools/>",
   "license": "EPL-2.0",
   "bugs": {
-    "url": "https://github.com/graphs4value/issues"
+    "url": "https://github.com/graphs4value/refinery/issues"
   },
   "homepage": "https://refinery.tools",
   "dependencies": {
diff --git a/subprojects/frontend/prettier.config.cjs b/subprojects/frontend/prettier.config.cjs
index 75f5c54d..6f9ff7ad 100644
--- a/subprojects/frontend/prettier.config.cjs
+++ b/subprojects/frontend/prettier.config.cjs
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 /** @type {import('prettier').Config} */
 module.exports = {
   singleQuote: true,
diff --git a/subprojects/frontend/public/apple-touch-icon.png.license b/subprojects/frontend/public/apple-touch-icon.png.license
new file mode 100644
index 00000000..e5db6ccd
--- /dev/null
+++ b/subprojects/frontend/public/apple-touch-icon.png.license
@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+
+SPDX-License-Identifier: EPL-2.0
diff --git a/subprojects/frontend/public/favicon-96x96.png.license b/subprojects/frontend/public/favicon-96x96.png.license
new file mode 100644
index 00000000..e5db6ccd
--- /dev/null
+++ b/subprojects/frontend/public/favicon-96x96.png.license
@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+
+SPDX-License-Identifier: EPL-2.0
diff --git a/subprojects/frontend/public/favicon.png.license b/subprojects/frontend/public/favicon.png.license
new file mode 100644
index 00000000..e5db6ccd
--- /dev/null
+++ b/subprojects/frontend/public/favicon.png.license
@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+
+SPDX-License-Identifier: EPL-2.0
diff --git a/subprojects/frontend/public/favicon.svg.license b/subprojects/frontend/public/favicon.svg.license
new file mode 100644
index 00000000..e5db6ccd
--- /dev/null
+++ b/subprojects/frontend/public/favicon.svg.license
@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+
+SPDX-License-Identifier: EPL-2.0
diff --git a/subprojects/frontend/public/icon-192x192.png.license b/subprojects/frontend/public/icon-192x192.png.license
new file mode 100644
index 00000000..e5db6ccd
--- /dev/null
+++ b/subprojects/frontend/public/icon-192x192.png.license
@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+
+SPDX-License-Identifier: EPL-2.0
diff --git a/subprojects/frontend/public/icon-512x512.png.license b/subprojects/frontend/public/icon-512x512.png.license
new file mode 100644
index 00000000..e5db6ccd
--- /dev/null
+++ b/subprojects/frontend/public/icon-512x512.png.license
@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+
+SPDX-License-Identifier: EPL-2.0
diff --git a/subprojects/frontend/public/icon-any.svg.license b/subprojects/frontend/public/icon-any.svg.license
new file mode 100644
index 00000000..e5db6ccd
--- /dev/null
+++ b/subprojects/frontend/public/icon-any.svg.license
@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+
+SPDX-License-Identifier: EPL-2.0
diff --git a/subprojects/frontend/public/mask-icon.svg.license b/subprojects/frontend/public/mask-icon.svg.license
new file mode 100644
index 00000000..e5db6ccd
--- /dev/null
+++ b/subprojects/frontend/public/mask-icon.svg.license
@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+
+SPDX-License-Identifier: EPL-2.0
diff --git a/subprojects/frontend/public/robots.txt b/subprojects/frontend/public/robots.txt
index c2a49f4f..e7c73099 100644
--- a/subprojects/frontend/public/robots.txt
+++ b/subprojects/frontend/public/robots.txt
@@ -1,2 +1,6 @@
+# SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+#
+# SPDX-License-Identifier: CC0-1.0
+
 User-agent: *
 Allow: /
diff --git a/subprojects/frontend/src/App.tsx b/subprojects/frontend/src/App.tsx
index cd394345..7f242529 100644
--- a/subprojects/frontend/src/App.tsx
+++ b/subprojects/frontend/src/App.tsx
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import Box from '@mui/material/Box';
 import CssBaseline from '@mui/material/CssBaseline';
 import { throttle } from 'lodash-es';
diff --git a/subprojects/frontend/src/Loading.tsx b/subprojects/frontend/src/Loading.tsx
index 489563e0..adee4f0e 100644
--- a/subprojects/frontend/src/Loading.tsx
+++ b/subprojects/frontend/src/Loading.tsx
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import CircularProgress from '@mui/material/CircularProgress';
 import { styled } from '@mui/material/styles';
 
diff --git a/subprojects/frontend/src/PWAStore.ts b/subprojects/frontend/src/PWAStore.ts
index e9f99e2a..a1b3ffd9 100644
--- a/subprojects/frontend/src/PWAStore.ts
+++ b/subprojects/frontend/src/PWAStore.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import { makeAutoObservable, observable } from 'mobx';
 import ms from 'ms';
 // eslint-disable-next-line import/no-unresolved -- Importing virtual module.
diff --git a/subprojects/frontend/src/Refinery.tsx b/subprojects/frontend/src/Refinery.tsx
index f0162349..b5ff94e1 100644
--- a/subprojects/frontend/src/Refinery.tsx
+++ b/subprojects/frontend/src/Refinery.tsx
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import Grow from '@mui/material/Grow';
 import Stack from '@mui/material/Stack';
 import { SnackbarProvider } from 'notistack';
diff --git a/subprojects/frontend/src/RootStore.ts b/subprojects/frontend/src/RootStore.ts
index 2e76d66d..b84c0ce0 100644
--- a/subprojects/frontend/src/RootStore.ts
+++ b/subprojects/frontend/src/RootStore.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import { getLogger } from 'loglevel';
 import { makeAutoObservable, runInAction } from 'mobx';
 
diff --git a/subprojects/frontend/src/RootStoreProvider.tsx b/subprojects/frontend/src/RootStoreProvider.tsx
index 2c11a0f9..7cb89af1 100644
--- a/subprojects/frontend/src/RootStoreProvider.tsx
+++ b/subprojects/frontend/src/RootStoreProvider.tsx
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import { type ReactNode, createContext, useContext } from 'react';
 
 import type RootStore from './RootStore';
diff --git a/subprojects/frontend/src/ToggleDarkModeButton.tsx b/subprojects/frontend/src/ToggleDarkModeButton.tsx
index 59714f20..7a835e61 100644
--- a/subprojects/frontend/src/ToggleDarkModeButton.tsx
+++ b/subprojects/frontend/src/ToggleDarkModeButton.tsx
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import DarkModeIcon from '@mui/icons-material/DarkMode';
 import LightModeIcon from '@mui/icons-material/LightMode';
 import IconButton from '@mui/material/IconButton';
diff --git a/subprojects/frontend/src/TopBar.tsx b/subprojects/frontend/src/TopBar.tsx
index 5a825512..f2542b14 100644
--- a/subprojects/frontend/src/TopBar.tsx
+++ b/subprojects/frontend/src/TopBar.tsx
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import GitHubIcon from '@mui/icons-material/GitHub';
 import AppBar from '@mui/material/AppBar';
 import Button from '@mui/material/Button';
diff --git a/subprojects/frontend/src/UpdateNotification.tsx b/subprojects/frontend/src/UpdateNotification.tsx
index 5c8c2d01..d86c0703 100644
--- a/subprojects/frontend/src/UpdateNotification.tsx
+++ b/subprojects/frontend/src/UpdateNotification.tsx
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import Button from '@mui/material/Button';
 import { observer } from 'mobx-react-lite';
 import { useEffect } from 'react';
diff --git a/subprojects/frontend/src/WindowControlsOverlayColor.tsx b/subprojects/frontend/src/WindowControlsOverlayColor.tsx
index 14eda566..cfa468ea 100644
--- a/subprojects/frontend/src/WindowControlsOverlayColor.tsx
+++ b/subprojects/frontend/src/WindowControlsOverlayColor.tsx
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import { useTheme } from '@mui/material/styles';
 import { useEffect } from 'react';
 
diff --git a/subprojects/frontend/src/editor/AnimatedButton.tsx b/subprojects/frontend/src/editor/AnimatedButton.tsx
index f75d4617..dbbda618 100644
--- a/subprojects/frontend/src/editor/AnimatedButton.tsx
+++ b/subprojects/frontend/src/editor/AnimatedButton.tsx
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import Box from '@mui/material/Box';
 import Button from '@mui/material/Button';
 import { styled, type SxProps, type Theme } from '@mui/material/styles';
diff --git a/subprojects/frontend/src/editor/ConnectButton.tsx b/subprojects/frontend/src/editor/ConnectButton.tsx
index e2d251f3..eed6fbc7 100644
--- a/subprojects/frontend/src/editor/ConnectButton.tsx
+++ b/subprojects/frontend/src/editor/ConnectButton.tsx
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import CloudIcon from '@mui/icons-material/Cloud';
 import CloudOffIcon from '@mui/icons-material/CloudOff';
 import SyncIcon from '@mui/icons-material/Sync';
diff --git a/subprojects/frontend/src/editor/ConnectionStatusNotification.tsx b/subprojects/frontend/src/editor/ConnectionStatusNotification.tsx
index 9b27f45c..b7b962ab 100644
--- a/subprojects/frontend/src/editor/ConnectionStatusNotification.tsx
+++ b/subprojects/frontend/src/editor/ConnectionStatusNotification.tsx
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import Button from '@mui/material/Button';
 import { observer } from 'mobx-react-lite';
 import { useEffect } from 'react';
diff --git a/subprojects/frontend/src/editor/DiagnosticValue.ts b/subprojects/frontend/src/editor/DiagnosticValue.ts
index b4e0b165..20478262 100644
--- a/subprojects/frontend/src/editor/DiagnosticValue.ts
+++ b/subprojects/frontend/src/editor/DiagnosticValue.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import type { Diagnostic } from '@codemirror/lint';
 import { RangeValue } from '@codemirror/state';
 
diff --git a/subprojects/frontend/src/editor/EditorArea.tsx b/subprojects/frontend/src/editor/EditorArea.tsx
index cfb988b2..905fa2ec 100644
--- a/subprojects/frontend/src/editor/EditorArea.tsx
+++ b/subprojects/frontend/src/editor/EditorArea.tsx
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import Box from '@mui/material/Box';
 import { useTheme } from '@mui/material/styles';
 import { observer } from 'mobx-react-lite';
diff --git a/subprojects/frontend/src/editor/EditorButtons.tsx b/subprojects/frontend/src/editor/EditorButtons.tsx
index 53b06e23..9b187e5c 100644
--- a/subprojects/frontend/src/editor/EditorButtons.tsx
+++ b/subprojects/frontend/src/editor/EditorButtons.tsx
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import type { Diagnostic } from '@codemirror/lint';
 import CheckIcon from '@mui/icons-material/Check';
 import ErrorIcon from '@mui/icons-material/Error';
diff --git a/subprojects/frontend/src/editor/EditorPane.tsx b/subprojects/frontend/src/editor/EditorPane.tsx
index f7f8241a..87f408fe 100644
--- a/subprojects/frontend/src/editor/EditorPane.tsx
+++ b/subprojects/frontend/src/editor/EditorPane.tsx
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import Box from '@mui/material/Box';
 import Skeleton from '@mui/material/Skeleton';
 import Stack from '@mui/material/Stack';
diff --git a/subprojects/frontend/src/editor/EditorStore.ts b/subprojects/frontend/src/editor/EditorStore.ts
index 0a0d885d..b98f085e 100644
--- a/subprojects/frontend/src/editor/EditorStore.ts
+++ b/subprojects/frontend/src/editor/EditorStore.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import type {
   CompletionContext,
   CompletionResult,
diff --git a/subprojects/frontend/src/editor/EditorTheme.ts b/subprojects/frontend/src/editor/EditorTheme.ts
index 01b65a7e..023a8f73 100644
--- a/subprojects/frontend/src/editor/EditorTheme.ts
+++ b/subprojects/frontend/src/editor/EditorTheme.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import errorSVG from '@material-icons/svg/svg/error/baseline.svg?raw';
 import expandMoreSVG from '@material-icons/svg/svg/expand_more/baseline.svg?raw';
 import infoSVG from '@material-icons/svg/svg/info/baseline.svg?raw';
diff --git a/subprojects/frontend/src/editor/GenerateButton.tsx b/subprojects/frontend/src/editor/GenerateButton.tsx
index 2036fc28..3837ef8e 100644
--- a/subprojects/frontend/src/editor/GenerateButton.tsx
+++ b/subprojects/frontend/src/editor/GenerateButton.tsx
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import DangerousOutlinedIcon from '@mui/icons-material/DangerousOutlined';
 import PlayArrowIcon from '@mui/icons-material/PlayArrow';
 import Button from '@mui/material/Button';
diff --git a/subprojects/frontend/src/editor/LintPanelStore.ts b/subprojects/frontend/src/editor/LintPanelStore.ts
index 502f9c59..f81587fa 100644
--- a/subprojects/frontend/src/editor/LintPanelStore.ts
+++ b/subprojects/frontend/src/editor/LintPanelStore.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import { closeLintPanel, openLintPanel } from '@codemirror/lint';
 
 import type EditorStore from './EditorStore';
diff --git a/subprojects/frontend/src/editor/PanelStore.ts b/subprojects/frontend/src/editor/PanelStore.ts
index 4f827280..25ef8b6c 100644
--- a/subprojects/frontend/src/editor/PanelStore.ts
+++ b/subprojects/frontend/src/editor/PanelStore.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import type { Command } from '@codemirror/view';
 import { action, makeObservable, observable } from 'mobx';
 
diff --git a/subprojects/frontend/src/editor/SearchPanel.ts b/subprojects/frontend/src/editor/SearchPanel.ts
index c9df41b7..b63d5eed 100644
--- a/subprojects/frontend/src/editor/SearchPanel.ts
+++ b/subprojects/frontend/src/editor/SearchPanel.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import {
   type EditorView,
   type Panel,
diff --git a/subprojects/frontend/src/editor/SearchPanelPortal.tsx b/subprojects/frontend/src/editor/SearchPanelPortal.tsx
index 5cf1c90e..b4b07c74 100644
--- a/subprojects/frontend/src/editor/SearchPanelPortal.tsx
+++ b/subprojects/frontend/src/editor/SearchPanelPortal.tsx
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import Portal from '@mui/material/Portal';
 import { observer } from 'mobx-react-lite';
 
diff --git a/subprojects/frontend/src/editor/SearchPanelStore.ts b/subprojects/frontend/src/editor/SearchPanelStore.ts
index 65d595a8..6a97baf1 100644
--- a/subprojects/frontend/src/editor/SearchPanelStore.ts
+++ b/subprojects/frontend/src/editor/SearchPanelStore.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import {
   closeSearchPanel,
   findNext,
diff --git a/subprojects/frontend/src/editor/SearchToolbar.tsx b/subprojects/frontend/src/editor/SearchToolbar.tsx
index 54f3dba7..4ae7e893 100644
--- a/subprojects/frontend/src/editor/SearchToolbar.tsx
+++ b/subprojects/frontend/src/editor/SearchToolbar.tsx
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import CloseIcon from '@mui/icons-material/Close';
 import FindReplaceIcon from '@mui/icons-material/FindReplace';
 import KeyboardArrowDownIcon from '@mui/icons-material/KeyboardArrowDown';
diff --git a/subprojects/frontend/src/editor/createEditorState.ts b/subprojects/frontend/src/editor/createEditorState.ts
index ce1efa4f..4a8e9832 100644
--- a/subprojects/frontend/src/editor/createEditorState.ts
+++ b/subprojects/frontend/src/editor/createEditorState.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import {
   closeBrackets,
   closeBracketsKeymap,
diff --git a/subprojects/frontend/src/editor/defineDecorationSetExtension.ts b/subprojects/frontend/src/editor/defineDecorationSetExtension.ts
index d9c7bc7d..0887c92e 100644
--- a/subprojects/frontend/src/editor/defineDecorationSetExtension.ts
+++ b/subprojects/frontend/src/editor/defineDecorationSetExtension.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import { StateEffect, StateField, TransactionSpec } from '@codemirror/state';
 import { EditorView, Decoration, DecorationSet } from '@codemirror/view';
 
diff --git a/subprojects/frontend/src/editor/exposeDiagnostics.ts b/subprojects/frontend/src/editor/exposeDiagnostics.ts
index 82f24c93..c4dcbb87 100644
--- a/subprojects/frontend/src/editor/exposeDiagnostics.ts
+++ b/subprojects/frontend/src/editor/exposeDiagnostics.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import { setDiagnosticsEffect } from '@codemirror/lint';
 import {
   StateField,
diff --git a/subprojects/frontend/src/editor/findOccurrences.ts b/subprojects/frontend/src/editor/findOccurrences.ts
index 08c078c2..00dffc96 100644
--- a/subprojects/frontend/src/editor/findOccurrences.ts
+++ b/subprojects/frontend/src/editor/findOccurrences.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import {
   type Range,
   RangeSet,
diff --git a/subprojects/frontend/src/editor/indentationMarkerViewPlugin.ts b/subprojects/frontend/src/editor/indentationMarkerViewPlugin.ts
index 730fa6e3..57a946d5 100644
--- a/subprojects/frontend/src/editor/indentationMarkerViewPlugin.ts
+++ b/subprojects/frontend/src/editor/indentationMarkerViewPlugin.ts
@@ -1,10 +1,16 @@
+/*
+ * Copyright (c) 2022 Replit
+ * Copyright (c) 2022-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: MIT OR EPL-2.0
+ */
+
 /**
  * @file CodeMirror plugin to highlight indentation
  *
  * This file is based on the
  * [@replit/codemirror-indentation-markers](https://github.com/replit/codemirror-indentation-markers)
- * package, which is available under the
- * [MIT License](https://github.com/replit/codemirror-indentation-markers/blob/543cc508ca5cef5d8350af23973eb1425e31525c/LICENSE).
+ * package.
  *
  * The highlighting heuristics were adjusted to make them more suitable
  * for logic programming.
diff --git a/subprojects/frontend/src/editor/scrollbarViewPlugin.ts b/subprojects/frontend/src/editor/scrollbarViewPlugin.ts
index f44034fd..878d369d 100644
--- a/subprojects/frontend/src/editor/scrollbarViewPlugin.ts
+++ b/subprojects/frontend/src/editor/scrollbarViewPlugin.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import { EditorSelection } from '@codemirror/state';
 import {
   type EditorView,
diff --git a/subprojects/frontend/src/editor/semanticHighlighting.ts b/subprojects/frontend/src/editor/semanticHighlighting.ts
index 2c1bd67d..1f2e564c 100644
--- a/subprojects/frontend/src/editor/semanticHighlighting.ts
+++ b/subprojects/frontend/src/editor/semanticHighlighting.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import { RangeSet, type TransactionSpec } from '@codemirror/state';
 import { Decoration } from '@codemirror/view';
 
diff --git a/subprojects/frontend/src/index.tsx b/subprojects/frontend/src/index.tsx
index 29b2b196..cb11e6c3 100644
--- a/subprojects/frontend/src/index.tsx
+++ b/subprojects/frontend/src/index.tsx
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import { configure } from 'mobx';
 import { type Root, createRoot } from 'react-dom/client';
 
diff --git a/subprojects/frontend/src/language/folding.ts b/subprojects/frontend/src/language/folding.ts
index 4dabfa27..b4d4ca22 100644
--- a/subprojects/frontend/src/language/folding.ts
+++ b/subprojects/frontend/src/language/folding.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import type { EditorState } from '@codemirror/state';
 import type { SyntaxNode } from '@lezer/common';
 
diff --git a/subprojects/frontend/src/language/indentation.ts b/subprojects/frontend/src/language/indentation.ts
index a0f7032d..8446d7fa 100644
--- a/subprojects/frontend/src/language/indentation.ts
+++ b/subprojects/frontend/src/language/indentation.ts
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018-2021 by Marijn Haverbeke <marijnh@gmail.com> and others
+ * Copyright (C) 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: MIT OR EPL-2.0
+ */
+
 import type { TreeIndentContext } from '@codemirror/language';
 
 /**
diff --git a/subprojects/frontend/src/language/problem.grammar b/subprojects/frontend/src/language/problem.grammar
index 704badab..a7b1fb0a 100644
--- a/subprojects/frontend/src/language/problem.grammar
+++ b/subprojects/frontend/src/language/problem.grammar
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 @detectDelim
 
 @external prop implicitCompletion from './props'
diff --git a/subprojects/frontend/src/language/problemLanguageSupport.ts b/subprojects/frontend/src/language/problemLanguageSupport.ts
index c3ae7ed9..2121e05f 100644
--- a/subprojects/frontend/src/language/problemLanguageSupport.ts
+++ b/subprojects/frontend/src/language/problemLanguageSupport.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import {
   foldInside,
   foldNodeProp,
diff --git a/subprojects/frontend/src/language/props.ts b/subprojects/frontend/src/language/props.ts
index 65392e75..aa67145a 100644
--- a/subprojects/frontend/src/language/props.ts
+++ b/subprojects/frontend/src/language/props.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 /* eslint-disable import/prefer-default-export -- Lezer needs non-default exports */
 
 import { NodeProp } from '@lezer/common';
diff --git a/subprojects/frontend/src/theme/ThemeProvider.tsx b/subprojects/frontend/src/theme/ThemeProvider.tsx
index ff97d524..740e9562 100644
--- a/subprojects/frontend/src/theme/ThemeProvider.tsx
+++ b/subprojects/frontend/src/theme/ThemeProvider.tsx
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import {
   alpha,
   createTheme,
diff --git a/subprojects/frontend/src/theme/ThemeStore.ts b/subprojects/frontend/src/theme/ThemeStore.ts
index e09d8d99..7c657449 100644
--- a/subprojects/frontend/src/theme/ThemeStore.ts
+++ b/subprojects/frontend/src/theme/ThemeStore.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import { makeAutoObservable } from 'mobx';
 
 export enum ThemePreference {
diff --git a/subprojects/frontend/src/utils/CancelledError.ts b/subprojects/frontend/src/utils/CancelledError.ts
index ee23676f..96b67af7 100644
--- a/subprojects/frontend/src/utils/CancelledError.ts
+++ b/subprojects/frontend/src/utils/CancelledError.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 export default class CancelledError extends Error {
   constructor(message = 'Operation cancelled') {
     super(message);
diff --git a/subprojects/frontend/src/utils/PendingTask.ts b/subprojects/frontend/src/utils/PendingTask.ts
index d0b24c1f..80d1a346 100644
--- a/subprojects/frontend/src/utils/PendingTask.ts
+++ b/subprojects/frontend/src/utils/PendingTask.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import TimeoutError from './TimeoutError';
 import getLogger from './getLogger';
 
diff --git a/subprojects/frontend/src/utils/PriorityMutex.ts b/subprojects/frontend/src/utils/PriorityMutex.ts
index 78736141..c1215c76 100644
--- a/subprojects/frontend/src/utils/PriorityMutex.ts
+++ b/subprojects/frontend/src/utils/PriorityMutex.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import CancelledError from './CancelledError';
 import PendingTask from './PendingTask';
 import getLogger from './getLogger';
diff --git a/subprojects/frontend/src/utils/TimeoutError.ts b/subprojects/frontend/src/utils/TimeoutError.ts
index eb800f40..21365502 100644
--- a/subprojects/frontend/src/utils/TimeoutError.ts
+++ b/subprojects/frontend/src/utils/TimeoutError.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 export default class TimeoutError extends Error {
   constructor() {
     super('Operation timed out');
diff --git a/subprojects/frontend/src/utils/getLogger.ts b/subprojects/frontend/src/utils/getLogger.ts
index 301fd76d..09b0b17f 100644
--- a/subprojects/frontend/src/utils/getLogger.ts
+++ b/subprojects/frontend/src/utils/getLogger.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import styles, { type CSPair } from 'ansi-styles';
 import log from 'loglevel';
 import prefix from 'loglevel-plugin-prefix';
diff --git a/subprojects/frontend/src/utils/useDelayedSnackbar.ts b/subprojects/frontend/src/utils/useDelayedSnackbar.ts
index 03ad6caa..3d6df3e3 100644
--- a/subprojects/frontend/src/utils/useDelayedSnackbar.ts
+++ b/subprojects/frontend/src/utils/useDelayedSnackbar.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import {
   useSnackbar,
   type SnackbarKey,
diff --git a/subprojects/frontend/src/xtext/BackendConfig.ts b/subprojects/frontend/src/xtext/BackendConfig.ts
index 41737c0b..4c7eac5f 100644
--- a/subprojects/frontend/src/xtext/BackendConfig.ts
+++ b/subprojects/frontend/src/xtext/BackendConfig.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 /* eslint-disable @typescript-eslint/no-redeclare -- Declare types with their companion objects */
 
 import { z } from 'zod';
diff --git a/subprojects/frontend/src/xtext/ContentAssistService.ts b/subprojects/frontend/src/xtext/ContentAssistService.ts
index 78f61c06..fd30c4f9 100644
--- a/subprojects/frontend/src/xtext/ContentAssistService.ts
+++ b/subprojects/frontend/src/xtext/ContentAssistService.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import type {
   Completion,
   CompletionContext,
diff --git a/subprojects/frontend/src/xtext/HighlightingService.ts b/subprojects/frontend/src/xtext/HighlightingService.ts
index a126ee40..447f1401 100644
--- a/subprojects/frontend/src/xtext/HighlightingService.ts
+++ b/subprojects/frontend/src/xtext/HighlightingService.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import type EditorStore from '../editor/EditorStore';
 import type { IHighlightRange } from '../editor/semanticHighlighting';
 
diff --git a/subprojects/frontend/src/xtext/OccurrencesService.ts b/subprojects/frontend/src/xtext/OccurrencesService.ts
index fc72ead2..c9c6c699 100644
--- a/subprojects/frontend/src/xtext/OccurrencesService.ts
+++ b/subprojects/frontend/src/xtext/OccurrencesService.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import type { Transaction } from '@codemirror/state';
 import { debounce } from 'lodash-es';
 import ms from 'ms';
diff --git a/subprojects/frontend/src/xtext/UpdateService.ts b/subprojects/frontend/src/xtext/UpdateService.ts
index 63e28652..ee5ebde2 100644
--- a/subprojects/frontend/src/xtext/UpdateService.ts
+++ b/subprojects/frontend/src/xtext/UpdateService.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import type { ChangeDesc, Transaction } from '@codemirror/state';
 import { debounce } from 'lodash-es';
 import { nanoid } from 'nanoid';
diff --git a/subprojects/frontend/src/xtext/UpdateStateTracker.ts b/subprojects/frontend/src/xtext/UpdateStateTracker.ts
index 5d4ce49e..4ce93ed6 100644
--- a/subprojects/frontend/src/xtext/UpdateStateTracker.ts
+++ b/subprojects/frontend/src/xtext/UpdateStateTracker.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import {
   type ChangeDesc,
   ChangeSet,
diff --git a/subprojects/frontend/src/xtext/ValidationService.ts b/subprojects/frontend/src/xtext/ValidationService.ts
index 72414590..64fb63eb 100644
--- a/subprojects/frontend/src/xtext/ValidationService.ts
+++ b/subprojects/frontend/src/xtext/ValidationService.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import type { Diagnostic } from '@codemirror/lint';
 
 import type EditorStore from '../editor/EditorStore';
diff --git a/subprojects/frontend/src/xtext/XtextClient.ts b/subprojects/frontend/src/xtext/XtextClient.ts
index 14fb2430..e8181af0 100644
--- a/subprojects/frontend/src/xtext/XtextClient.ts
+++ b/subprojects/frontend/src/xtext/XtextClient.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import type {
   CompletionContext,
   CompletionResult,
diff --git a/subprojects/frontend/src/xtext/XtextWebSocketClient.ts b/subprojects/frontend/src/xtext/XtextWebSocketClient.ts
index 6b734546..6bb7eec8 100644
--- a/subprojects/frontend/src/xtext/XtextWebSocketClient.ts
+++ b/subprojects/frontend/src/xtext/XtextWebSocketClient.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import { createAtom, makeAutoObservable, observable } from 'mobx';
 import ms from 'ms';
 import { nanoid } from 'nanoid';
diff --git a/subprojects/frontend/src/xtext/fetchBackendConfig.ts b/subprojects/frontend/src/xtext/fetchBackendConfig.ts
index 15e976d8..71ff2e63 100644
--- a/subprojects/frontend/src/xtext/fetchBackendConfig.ts
+++ b/subprojects/frontend/src/xtext/fetchBackendConfig.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import BackendConfig, { ENDPOINT } from './BackendConfig';
 
 export default async function fetchBackendConfig(): Promise<BackendConfig> {
diff --git a/subprojects/frontend/src/xtext/webSocketMachine.ts b/subprojects/frontend/src/xtext/webSocketMachine.ts
index fc53fef3..2fb1f52f 100644
--- a/subprojects/frontend/src/xtext/webSocketMachine.ts
+++ b/subprojects/frontend/src/xtext/webSocketMachine.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import ms from 'ms';
 import { actions, assign, createMachine } from 'xstate';
 
diff --git a/subprojects/frontend/src/xtext/xtextMessages.ts b/subprojects/frontend/src/xtext/xtextMessages.ts
index ec7a2a31..bbbff064 100644
--- a/subprojects/frontend/src/xtext/xtextMessages.ts
+++ b/subprojects/frontend/src/xtext/xtextMessages.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 /* eslint-disable @typescript-eslint/no-redeclare -- Declare types with their companion objects */
 
 import { z } from 'zod';
diff --git a/subprojects/frontend/src/xtext/xtextServiceResults.ts b/subprojects/frontend/src/xtext/xtextServiceResults.ts
index e93c6714..d3b467ad 100644
--- a/subprojects/frontend/src/xtext/xtextServiceResults.ts
+++ b/subprojects/frontend/src/xtext/xtextServiceResults.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 /* eslint-disable @typescript-eslint/no-redeclare -- Declare types with their companion objects */
 
 import { z } from 'zod';
diff --git a/subprojects/frontend/tsconfig.base.json b/subprojects/frontend/tsconfig.base.json
index 30e707ae..58a2a6f2 100644
--- a/subprojects/frontend/tsconfig.base.json
+++ b/subprojects/frontend/tsconfig.base.json
@@ -1,3 +1,13 @@
+/*
+ * Copyright (c) Microsoft Corporation.
+ * Copyright (c) 2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: MIT OR EPL-2.0
+ *
+ * This file is based on
+ * https://github.com/tsconfig/bases/blob/7db25a41bc5a9c0f66d91f6f3aa28438afcb2f18/bases/strictest.json
+ * but we moved it inside the project for better tooling support.
+ */
 {
   "compilerOptions": {
     "strict": true,
@@ -11,6 +21,8 @@
     "noUncheckedIndexedAccess": true,
     "noUnusedLocals": true,
     "noUnusedParameters": true,
+    // "verbatimModuleSyntax" is incompatible with `import` syntax in modules
+    // with CommonJS import resolution, so we use "isolatedModules" only.
     "verbatimModuleSyntax": false,
     "isolatedModules": true,
     "checkJs": true,
@@ -18,6 +30,7 @@
     "skipLibCheck": true,
     "forceConsistentCasingInFileNames": true,
     "useDefineForClassFields": true,
+    // Project-specific configuration below.
     "module": "es2022",
     "moduleResolution": "node",
     "incremental": true,
diff --git a/subprojects/frontend/tsconfig.json b/subprojects/frontend/tsconfig.json
index 35d0d164..06f6d8fe 100644
--- a/subprojects/frontend/tsconfig.json
+++ b/subprojects/frontend/tsconfig.json
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 {
   "extends": "./tsconfig.base.json",
   "compilerOptions": {
diff --git a/subprojects/frontend/tsconfig.node.json b/subprojects/frontend/tsconfig.node.json
index cfa2da13..47feaf97 100644
--- a/subprojects/frontend/tsconfig.node.json
+++ b/subprojects/frontend/tsconfig.node.json
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 {
   "extends": "./tsconfig.base.json",
   "compilerOptions": {
diff --git a/subprojects/frontend/tsconfig.shared.json b/subprojects/frontend/tsconfig.shared.json
index f7b56a1d..154fe122 100644
--- a/subprojects/frontend/tsconfig.shared.json
+++ b/subprojects/frontend/tsconfig.shared.json
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 {
   "extends": "./tsconfig.base.json",
   "compilerOptions": {
@@ -6,6 +11,6 @@
     "types": [],
   },
   "include": [
-    "src/xtext/BackendConfig.ts",
+    "src/xtext/BackendConfig.ts"
   ]
 }
diff --git a/subprojects/frontend/types/ImportMeta.d.ts b/subprojects/frontend/types/ImportMeta.d.ts
index c32b48f5..f5a32ef1 100644
--- a/subprojects/frontend/types/ImportMeta.d.ts
+++ b/subprojects/frontend/types/ImportMeta.d.ts
@@ -1,3 +1,10 @@
+/*
+ * Copyright (c) 2019-present, Yuxi (Evan) You and Vite contributors
+ * Copyright (c) 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: MIT OR EPL-2.0
+ */
+
 interface ImportMeta {
   env: {
     BASE_URL: string;
diff --git a/subprojects/frontend/types/grammar.d.ts b/subprojects/frontend/types/grammar.d.ts
index 1480085b..e7a7eebf 100644
--- a/subprojects/frontend/types/grammar.d.ts
+++ b/subprojects/frontend/types/grammar.d.ts
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 by Marijn Haverbeke <marijn@haverbeke.berlin> and others
+ * Copyright (C) 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: MIT OR EPL-2.0
+ */
+
 declare module '*.grammar' {
   import type { LRParser } from '@lezer/lr';
 
diff --git a/subprojects/frontend/types/node/@lezer-generator-rollup.d.ts b/subprojects/frontend/types/node/@lezer-generator-rollup.d.ts
index 9c1ff03e..4ef9f4e3 100644
--- a/subprojects/frontend/types/node/@lezer-generator-rollup.d.ts
+++ b/subprojects/frontend/types/node/@lezer-generator-rollup.d.ts
@@ -1,3 +1,10 @@
+/*
+ * Copyright (C) 2018 by Marijn Haverbeke <marijn@haverbeke.berlin> and others
+ * Copyright (C) 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: MIT OR EPL-2.0
+ */
+
 // We have to explicitly redeclare the type of the `./rollup` ESM export of `@lezer/generator`,
 // because TypeScript can't find it on its own even with `"moduleResolution": "Node16"`.
 declare module '@lezer/generator/rollup' {
diff --git a/subprojects/frontend/types/windowControlsOverlay.d.ts b/subprojects/frontend/types/windowControlsOverlay.d.ts
index d8f3182f..2513d620 100644
--- a/subprojects/frontend/types/windowControlsOverlay.d.ts
+++ b/subprojects/frontend/types/windowControlsOverlay.d.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 interface WindowControlsOverlayGeometryChangeEvent extends Event {
   titlebarAreaRect: DOMRect;
 
diff --git a/subprojects/frontend/vite.config.ts b/subprojects/frontend/vite.config.ts
index cd9993cc..9e08ccc4 100644
--- a/subprojects/frontend/vite.config.ts
+++ b/subprojects/frontend/vite.config.ts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import path from 'node:path';
 import { fileURLToPath } from 'node:url';
 
diff --git a/subprojects/language-ide/build.gradle.kts b/subprojects/language-ide/build.gradle.kts
index f996c00d..ff8630f9 100644
--- a/subprojects/language-ide/build.gradle.kts
+++ b/subprojects/language-ide/build.gradle.kts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 plugins {
         id("tools.refinery.gradle.java-library")
         id("tools.refinery.gradle.xtext-generated")
diff --git a/subprojects/language-ide/src/main/java/tools/refinery/language/ide/ProblemIdeModule.java b/subprojects/language-ide/src/main/java/tools/refinery/language/ide/ProblemIdeModule.java
index fb620065..122fe874 100644
--- a/subprojects/language-ide/src/main/java/tools/refinery/language/ide/ProblemIdeModule.java
+++ b/subprojects/language-ide/src/main/java/tools/refinery/language/ide/ProblemIdeModule.java
@@ -1,4 +1,10 @@
 /*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
+/*
  * generated by Xtext 2.25.0
  */
 package tools.refinery.language.ide;
diff --git a/subprojects/language-ide/src/main/java/tools/refinery/language/ide/ProblemIdeSetup.java b/subprojects/language-ide/src/main/java/tools/refinery/language/ide/ProblemIdeSetup.java
index 5b88d41f..9d77e022 100644
--- a/subprojects/language-ide/src/main/java/tools/refinery/language/ide/ProblemIdeSetup.java
+++ b/subprojects/language-ide/src/main/java/tools/refinery/language/ide/ProblemIdeSetup.java
@@ -1,4 +1,10 @@
 /*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
+/*
  * generated by Xtext 2.25.0
  */
 package tools.refinery.language.ide;
diff --git a/subprojects/language-ide/src/main/java/tools/refinery/language/ide/contentassist/FuzzyMatcher.java b/subprojects/language-ide/src/main/java/tools/refinery/language/ide/contentassist/FuzzyMatcher.java
index fe722ca1..4511223b 100644
--- a/subprojects/language-ide/src/main/java/tools/refinery/language/ide/contentassist/FuzzyMatcher.java
+++ b/subprojects/language-ide/src/main/java/tools/refinery/language/ide/contentassist/FuzzyMatcher.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.ide.contentassist;
 
 import org.eclipse.xtext.ide.editor.contentassist.IPrefixMatcher;
diff --git a/subprojects/language-ide/src/main/java/tools/refinery/language/ide/contentassist/ProblemCrossrefProposalProvider.java b/subprojects/language-ide/src/main/java/tools/refinery/language/ide/contentassist/ProblemCrossrefProposalProvider.java
index 8f04ed00..e194ee31 100644
--- a/subprojects/language-ide/src/main/java/tools/refinery/language/ide/contentassist/ProblemCrossrefProposalProvider.java
+++ b/subprojects/language-ide/src/main/java/tools/refinery/language/ide/contentassist/ProblemCrossrefProposalProvider.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.ide.contentassist;
 
 import java.util.Objects;
diff --git a/subprojects/language-ide/src/main/java/tools/refinery/language/ide/contentassist/TokenSourceInjectingPartialProblemContentAssistParser.java b/subprojects/language-ide/src/main/java/tools/refinery/language/ide/contentassist/TokenSourceInjectingPartialProblemContentAssistParser.java
index 3ece6f67..146bd8da 100644
--- a/subprojects/language-ide/src/main/java/tools/refinery/language/ide/contentassist/TokenSourceInjectingPartialProblemContentAssistParser.java
+++ b/subprojects/language-ide/src/main/java/tools/refinery/language/ide/contentassist/TokenSourceInjectingPartialProblemContentAssistParser.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.ide.contentassist;
 
 import com.google.inject.Inject;
diff --git a/subprojects/language-ide/src/main/java/tools/refinery/language/ide/contentassist/TokenSourceInjectingProblemParser.java b/subprojects/language-ide/src/main/java/tools/refinery/language/ide/contentassist/TokenSourceInjectingProblemParser.java
index 80dfee5c..f906d881 100644
--- a/subprojects/language-ide/src/main/java/tools/refinery/language/ide/contentassist/TokenSourceInjectingProblemParser.java
+++ b/subprojects/language-ide/src/main/java/tools/refinery/language/ide/contentassist/TokenSourceInjectingProblemParser.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.ide.contentassist;
 
 import com.google.inject.Inject;
diff --git a/subprojects/language-ide/src/main/java/tools/refinery/language/ide/contentassist/antlr/ProblemTokenSource.java b/subprojects/language-ide/src/main/java/tools/refinery/language/ide/contentassist/antlr/ProblemTokenSource.java
index c6c7f41f..fdc17c4f 100644
--- a/subprojects/language-ide/src/main/java/tools/refinery/language/ide/contentassist/antlr/ProblemTokenSource.java
+++ b/subprojects/language-ide/src/main/java/tools/refinery/language/ide/contentassist/antlr/ProblemTokenSource.java
@@ -1,4 +1,10 @@
 /*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
+/*
  * generated by Xtext 2.29.0.M2
  */
 package tools.refinery.language.ide.contentassist.antlr;
diff --git a/subprojects/language-ide/src/main/java/tools/refinery/language/ide/syntaxcoloring/ProblemSemanticHighlightingCalculator.java b/subprojects/language-ide/src/main/java/tools/refinery/language/ide/syntaxcoloring/ProblemSemanticHighlightingCalculator.java
index 7703e4e3..e8f97d51 100644
--- a/subprojects/language-ide/src/main/java/tools/refinery/language/ide/syntaxcoloring/ProblemSemanticHighlightingCalculator.java
+++ b/subprojects/language-ide/src/main/java/tools/refinery/language/ide/syntaxcoloring/ProblemSemanticHighlightingCalculator.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.ide.syntaxcoloring;
 
 import com.google.common.collect.ImmutableList;
diff --git a/subprojects/language-model/META-INF/MANIFEST.MF.license b/subprojects/language-model/META-INF/MANIFEST.MF.license
new file mode 100644
index 00000000..e5db6ccd
--- /dev/null
+++ b/subprojects/language-model/META-INF/MANIFEST.MF.license
@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+
+SPDX-License-Identifier: EPL-2.0
diff --git a/subprojects/language-model/build.gradle.kts b/subprojects/language-model/build.gradle.kts
index 12b6bc13..4f15e5e6 100644
--- a/subprojects/language-model/build.gradle.kts
+++ b/subprojects/language-model/build.gradle.kts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import tools.refinery.gradle.utils.SonarPropertiesUtils
 
 plugins {
diff --git a/subprojects/language-model/build.properties b/subprojects/language-model/build.properties
index 65dfc7c4..9b9859ff 100644
--- a/subprojects/language-model/build.properties
+++ b/subprojects/language-model/build.properties
@@ -1,4 +1,6 @@
+# SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
 #
+# SPDX-License-Identifier: EPL-2.0
 
 bin.includes = .,\
                src/main/resources/model/,\
diff --git a/subprojects/language-model/plugin.properties b/subprojects/language-model/plugin.properties
index c4fb7e23..c410feb7 100644
--- a/subprojects/language-model/plugin.properties
+++ b/subprojects/language-model/plugin.properties
@@ -1,4 +1,6 @@
+# SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
 #
+# SPDX-License-Identifier: EPL-2.0
 
 pluginName = tools.refinery.language.model
 providerName = refinery.tools
diff --git a/subprojects/language-model/plugin.xml b/subprojects/language-model/plugin.xml
index 4ca005a8..ef1e21f4 100644
--- a/subprojects/language-model/plugin.xml
+++ b/subprojects/language-model/plugin.xml
@@ -2,6 +2,9 @@
 <?eclipse version="3.0"?>
 
 <!--
+  SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+
+  SPDX-License-Identifier: EPL-2.0
 -->
 
 <plugin>
diff --git a/subprojects/language-model/problem.aird.license b/subprojects/language-model/problem.aird.license
new file mode 100644
index 00000000..e5db6ccd
--- /dev/null
+++ b/subprojects/language-model/problem.aird.license
@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+
+SPDX-License-Identifier: EPL-2.0
diff --git a/subprojects/language-model/src/main/java/tools/refinery/language/model/GenerateProblemModel.mwe2 b/subprojects/language-model/src/main/java/tools/refinery/language/model/GenerateProblemModel.mwe2
index 15198d69..074b6b71 100644
--- a/subprojects/language-model/src/main/java/tools/refinery/language/model/GenerateProblemModel.mwe2
+++ b/subprojects/language-model/src/main/java/tools/refinery/language/model/GenerateProblemModel.mwe2
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 module tools.refinery.language.model.GenerateProblemModel
 
 Workflow {
diff --git a/subprojects/language-model/src/main/resources/model/problem.ecore.license b/subprojects/language-model/src/main/resources/model/problem.ecore.license
new file mode 100644
index 00000000..e5db6ccd
--- /dev/null
+++ b/subprojects/language-model/src/main/resources/model/problem.ecore.license
@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+
+SPDX-License-Identifier: EPL-2.0
diff --git a/subprojects/language-model/src/main/resources/model/problem.genmodel.license b/subprojects/language-model/src/main/resources/model/problem.genmodel.license
new file mode 100644
index 00000000..e5db6ccd
--- /dev/null
+++ b/subprojects/language-model/src/main/resources/model/problem.genmodel.license
@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+
+SPDX-License-Identifier: EPL-2.0
diff --git a/subprojects/language-semantics/build.gradle.kts b/subprojects/language-semantics/build.gradle.kts
index bf016dc9..38cd9e0d 100644
--- a/subprojects/language-semantics/build.gradle.kts
+++ b/subprojects/language-semantics/build.gradle.kts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 plugins {
         id("tools.refinery.gradle.java-library")
 }
diff --git a/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/ModelInitializer.java b/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/ModelInitializer.java
index a6712a89..41b4fcb0 100644
--- a/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/ModelInitializer.java
+++ b/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/ModelInitializer.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.semantics.model;
 
 import com.google.inject.Inject;
diff --git a/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/internal/DecisionTree.java b/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/internal/DecisionTree.java
index 55edee6d..c1afecf9 100644
--- a/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/internal/DecisionTree.java
+++ b/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/internal/DecisionTree.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.semantics.model.internal;
 
 import org.eclipse.collections.api.factory.primitive.IntObjectMaps;
diff --git a/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/internal/DecisionTreeCursor.java b/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/internal/DecisionTreeCursor.java
index fdf8e452..9a1e15a3 100644
--- a/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/internal/DecisionTreeCursor.java
+++ b/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/internal/DecisionTreeCursor.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.semantics.model.internal;
 
 import tools.refinery.store.map.Cursor;
diff --git a/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/internal/DecisionTreeNode.java b/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/internal/DecisionTreeNode.java
index b81ea3fe..3c54e3c5 100644
--- a/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/internal/DecisionTreeNode.java
+++ b/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/internal/DecisionTreeNode.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.semantics.model.internal;
 
 import org.eclipse.collections.api.LazyIntIterable;
diff --git a/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/internal/DecisionTreeValue.java b/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/internal/DecisionTreeValue.java
index 495a53dd..915ae2bf 100644
--- a/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/internal/DecisionTreeValue.java
+++ b/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/internal/DecisionTreeValue.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.semantics.model.internal;
 
 import tools.refinery.store.representation.TruthValue;
diff --git a/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/internal/IntermediateNode.java b/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/internal/IntermediateNode.java
index c4200509..e6f01d48 100644
--- a/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/internal/IntermediateNode.java
+++ b/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/internal/IntermediateNode.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.semantics.model.internal;
 
 import org.eclipse.collections.api.LazyIntIterable;
diff --git a/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/internal/TerminalNode.java b/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/internal/TerminalNode.java
index 4af836ff..ce49aa62 100644
--- a/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/internal/TerminalNode.java
+++ b/subprojects/language-semantics/src/main/java/tools/refinery/language/semantics/model/internal/TerminalNode.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.semantics.model.internal;
 
 import org.eclipse.collections.api.LazyIntIterable;
diff --git a/subprojects/language-semantics/src/test/java/tools/refinery/language/semantics/model/tests/DecisionTreeTests.java b/subprojects/language-semantics/src/test/java/tools/refinery/language/semantics/model/tests/DecisionTreeTests.java
index 4630bf53..b3fcbabb 100644
--- a/subprojects/language-semantics/src/test/java/tools/refinery/language/semantics/model/tests/DecisionTreeTests.java
+++ b/subprojects/language-semantics/src/test/java/tools/refinery/language/semantics/model/tests/DecisionTreeTests.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.semantics.model.tests;
 
 import org.junit.jupiter.api.Test;
diff --git a/subprojects/language-web/build.gradle.kts b/subprojects/language-web/build.gradle.kts
index d2a39d56..e1d250ec 100644
--- a/subprojects/language-web/build.gradle.kts
+++ b/subprojects/language-web/build.gradle.kts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 plugins {
         id("tools.refinery.gradle.java-application")
         id("tools.refinery.gradle.xtext-generated")
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/CacheControlFilter.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/CacheControlFilter.java
index fd2af1b2..53f78c3c 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/CacheControlFilter.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/CacheControlFilter.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web;
 
 import jakarta.servlet.*;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/ProblemWebModule.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/ProblemWebModule.java
index 706413a9..12e39e55 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/ProblemWebModule.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/ProblemWebModule.java
@@ -1,4 +1,10 @@
 /*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
+/*
  * generated by Xtext 2.25.0
  */
 package tools.refinery.language.web;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/ProblemWebSetup.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/ProblemWebSetup.java
index 4738bc80..53a394d8 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/ProblemWebSetup.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/ProblemWebSetup.java
@@ -1,4 +1,10 @@
 /*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
+/*
  * generated by Xtext 2.25.0
  */
 package tools.refinery.language.web;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/ProblemWebSocketServlet.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/ProblemWebSocketServlet.java
index df67b521..7b48cde8 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/ProblemWebSocketServlet.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/ProblemWebSocketServlet.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web;
 
 import org.eclipse.xtext.util.DisposableRegistry;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/SecurityHeadersFilter.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/SecurityHeadersFilter.java
index c41db799..7b094fde 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/SecurityHeadersFilter.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/SecurityHeadersFilter.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web;
 
 import jakarta.servlet.*;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/ServerLauncher.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/ServerLauncher.java
index d40e50af..1924f661 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/ServerLauncher.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/ServerLauncher.java
@@ -1,4 +1,10 @@
 /*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
+/*
  * generated by Xtext 2.25.0
  */
 package tools.refinery.language.web;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/VirtualThreadUtils.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/VirtualThreadUtils.java
index a055e755..27802e0c 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/VirtualThreadUtils.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/VirtualThreadUtils.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web;
 
 import org.eclipse.jetty.server.Server;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/config/BackendConfig.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/config/BackendConfig.java
index 2e864998..807b789c 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/config/BackendConfig.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/config/BackendConfig.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.config;
 
 import com.google.gson.annotations.SerializedName;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/config/BackendConfigServlet.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/config/BackendConfigServlet.java
index 47e8de7c..a2f04e34 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/config/BackendConfigServlet.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/config/BackendConfigServlet.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.config;
 
 import com.google.gson.Gson;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/occurrences/ProblemOccurrencesService.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/occurrences/ProblemOccurrencesService.java
index d32bbb54..34117384 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/occurrences/ProblemOccurrencesService.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/occurrences/ProblemOccurrencesService.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.occurrences;
 
 import org.eclipse.emf.ecore.EObject;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/VirtualThreadExecutorServiceProvider.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/VirtualThreadExecutorServiceProvider.java
index abbcbd53..699a09ab 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/VirtualThreadExecutorServiceProvider.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/VirtualThreadExecutorServiceProvider.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.xtext;
 
 import org.eclipse.xtext.ide.ExecutorServiceProvider;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/PongResult.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/PongResult.java
index fe510f51..27b2e04e 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/PongResult.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/PongResult.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.xtext.server;
 
 import java.util.Objects;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/ResponseHandler.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/ResponseHandler.java
index 2a85afe3..3069c2dd 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/ResponseHandler.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/ResponseHandler.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.xtext.server;
 
 import tools.refinery.language.web.xtext.server.message.XtextWebResponse;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/ResponseHandlerException.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/ResponseHandlerException.java
index b686d33a..366ef0a7 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/ResponseHandlerException.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/ResponseHandlerException.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.xtext.server;
 
 import java.io.Serial;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/SubscribingServiceContext.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/SubscribingServiceContext.java
index 78e00a9e..04212b84 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/SubscribingServiceContext.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/SubscribingServiceContext.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.xtext.server;
 
 import java.util.Set;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/TransactionExecutor.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/TransactionExecutor.java
index 7bb11d2e..0135d8f5 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/TransactionExecutor.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/TransactionExecutor.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.xtext.server;
 
 import com.google.common.base.Strings;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/message/XtextWebErrorKind.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/message/XtextWebErrorKind.java
index f74bae74..6f4f265c 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/message/XtextWebErrorKind.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/message/XtextWebErrorKind.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.xtext.server.message;
 
 import com.google.gson.annotations.SerializedName;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/message/XtextWebErrorResponse.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/message/XtextWebErrorResponse.java
index 01d78c31..af38ad70 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/message/XtextWebErrorResponse.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/message/XtextWebErrorResponse.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.xtext.server.message;
 
 import java.util.Objects;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/message/XtextWebOkResponse.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/message/XtextWebOkResponse.java
index 8af27247..73527ee5 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/message/XtextWebOkResponse.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/message/XtextWebOkResponse.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.xtext.server.message;
 
 import java.util.Objects;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/message/XtextWebPushMessage.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/message/XtextWebPushMessage.java
index c9432e1c..e9ff87c4 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/message/XtextWebPushMessage.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/message/XtextWebPushMessage.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.xtext.server.message;
 
 import java.util.Objects;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/message/XtextWebRequest.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/message/XtextWebRequest.java
index 959749f8..ff788e94 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/message/XtextWebRequest.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/message/XtextWebRequest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.xtext.server.message;
 
 import java.util.Map;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/message/XtextWebResponse.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/message/XtextWebResponse.java
index 3bd13047..61444c99 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/message/XtextWebResponse.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/message/XtextWebResponse.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.xtext.server.message;
 
 public sealed interface XtextWebResponse permits XtextWebOkResponse,XtextWebErrorResponse,XtextWebPushMessage {
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/push/PrecomputationListener.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/push/PrecomputationListener.java
index 79a284db..110c8f52 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/push/PrecomputationListener.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/push/PrecomputationListener.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.xtext.server.push;
 
 import org.eclipse.xtext.web.server.IServiceResult;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/push/PushServiceDispatcher.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/push/PushServiceDispatcher.java
index c7b8108d..4c9135c8 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/push/PushServiceDispatcher.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/push/PushServiceDispatcher.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.xtext.server.push;
 
 import org.eclipse.xtext.web.server.IServiceContext;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/push/PushWebDocument.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/push/PushWebDocument.java
index 906b9e30..56fd12c9 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/push/PushWebDocument.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/push/PushWebDocument.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.xtext.server.push;
 
 import java.util.ArrayList;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/push/PushWebDocumentAccess.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/push/PushWebDocumentAccess.java
index b3666a86..d9e548cd 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/push/PushWebDocumentAccess.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/push/PushWebDocumentAccess.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.xtext.server.push;
 
 import org.eclipse.xtext.service.OperationCanceledManager;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/push/PushWebDocumentProvider.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/push/PushWebDocumentProvider.java
index b6f04748..b6f4fb43 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/push/PushWebDocumentProvider.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/server/push/PushWebDocumentProvider.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.xtext.server.push;
 
 import org.eclipse.xtext.web.server.IServiceContext;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/servlet/SimpleServiceContext.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/servlet/SimpleServiceContext.java
index 43e37160..fee1141d 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/servlet/SimpleServiceContext.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/servlet/SimpleServiceContext.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.xtext.servlet;
 
 import java.util.Map;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/servlet/SimpleSession.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/servlet/SimpleSession.java
index 09c055a2..bc60c282 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/servlet/SimpleSession.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/servlet/SimpleSession.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.xtext.servlet;
 
 import java.util.HashMap;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/servlet/XtextStatusCode.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/servlet/XtextStatusCode.java
index 0cd229e8..caa98e84 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/servlet/XtextStatusCode.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/servlet/XtextStatusCode.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.xtext.servlet;
 
 public final class XtextStatusCode {
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/servlet/XtextWebSocket.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/servlet/XtextWebSocket.java
index 1d9e0463..f7d33e9e 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/servlet/XtextWebSocket.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/servlet/XtextWebSocket.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.xtext.servlet;
 
 import com.google.gson.Gson;
diff --git a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/servlet/XtextWebSocketServlet.java b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/servlet/XtextWebSocketServlet.java
index 9a32b937..5e4fb0ce 100644
--- a/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/servlet/XtextWebSocketServlet.java
+++ b/subprojects/language-web/src/main/java/tools/refinery/language/web/xtext/servlet/XtextWebSocketServlet.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.xtext.servlet;
 
 import jakarta.servlet.ServletConfig;
diff --git a/subprojects/language-web/src/test/java/tools/refinery/language/web/ProblemWebSocketServletIntegrationTest.java b/subprojects/language-web/src/test/java/tools/refinery/language/web/ProblemWebSocketServletIntegrationTest.java
index ecbefc4f..53a757eb 100644
--- a/subprojects/language-web/src/test/java/tools/refinery/language/web/ProblemWebSocketServletIntegrationTest.java
+++ b/subprojects/language-web/src/test/java/tools/refinery/language/web/ProblemWebSocketServletIntegrationTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web;
 
 import org.eclipse.jetty.ee10.servlet.ServletContextHandler;
diff --git a/subprojects/language-web/src/test/java/tools/refinery/language/web/tests/AwaitTerminationExecutorServiceProvider.java b/subprojects/language-web/src/test/java/tools/refinery/language/web/tests/AwaitTerminationExecutorServiceProvider.java
index c634e8fc..630549d4 100644
--- a/subprojects/language-web/src/test/java/tools/refinery/language/web/tests/AwaitTerminationExecutorServiceProvider.java
+++ b/subprojects/language-web/src/test/java/tools/refinery/language/web/tests/AwaitTerminationExecutorServiceProvider.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.tests;
 
 import com.google.inject.Singleton;
diff --git a/subprojects/language-web/src/test/java/tools/refinery/language/web/tests/ProblemWebInjectorProvider.java b/subprojects/language-web/src/test/java/tools/refinery/language/web/tests/ProblemWebInjectorProvider.java
index 43c12faa..4a5eed95 100644
--- a/subprojects/language-web/src/test/java/tools/refinery/language/web/tests/ProblemWebInjectorProvider.java
+++ b/subprojects/language-web/src/test/java/tools/refinery/language/web/tests/ProblemWebInjectorProvider.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.tests;
 
 import org.eclipse.xtext.ide.ExecutorServiceProvider;
diff --git a/subprojects/language-web/src/test/java/tools/refinery/language/web/tests/RestartableCachedThreadPool.java b/subprojects/language-web/src/test/java/tools/refinery/language/web/tests/RestartableCachedThreadPool.java
index cf805eda..09079aa8 100644
--- a/subprojects/language-web/src/test/java/tools/refinery/language/web/tests/RestartableCachedThreadPool.java
+++ b/subprojects/language-web/src/test/java/tools/refinery/language/web/tests/RestartableCachedThreadPool.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.tests;
 
 import com.google.inject.Provider;
diff --git a/subprojects/language-web/src/test/java/tools/refinery/language/web/tests/WebSocketIntegrationTestClient.java b/subprojects/language-web/src/test/java/tools/refinery/language/web/tests/WebSocketIntegrationTestClient.java
index f19c10ca..2ac53ea6 100644
--- a/subprojects/language-web/src/test/java/tools/refinery/language/web/tests/WebSocketIntegrationTestClient.java
+++ b/subprojects/language-web/src/test/java/tools/refinery/language/web/tests/WebSocketIntegrationTestClient.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.tests;
 
 import org.eclipse.jetty.ee10.websocket.api.Session;
diff --git a/subprojects/language-web/src/test/java/tools/refinery/language/web/xtext/servlet/TransactionExecutorTest.java b/subprojects/language-web/src/test/java/tools/refinery/language/web/xtext/servlet/TransactionExecutorTest.java
index 17f1ff5c..841bacd3 100644
--- a/subprojects/language-web/src/test/java/tools/refinery/language/web/xtext/servlet/TransactionExecutorTest.java
+++ b/subprojects/language-web/src/test/java/tools/refinery/language/web/xtext/servlet/TransactionExecutorTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.web.xtext.servlet;
 
 import com.google.inject.Inject;
diff --git a/subprojects/language/build.gradle.kts b/subprojects/language/build.gradle.kts
index 4cfe6895..aa799c3b 100644
--- a/subprojects/language/build.gradle.kts
+++ b/subprojects/language/build.gradle.kts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 import tools.refinery.gradle.utils.SonarPropertiesUtils
 
 plugins {
diff --git a/subprojects/language/src/main/java/tools/refinery/language/GenerateProblem.mwe2 b/subprojects/language/src/main/java/tools/refinery/language/GenerateProblem.mwe2
index 21ff456e..d8d89173 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/GenerateProblem.mwe2
+++ b/subprojects/language/src/main/java/tools/refinery/language/GenerateProblem.mwe2
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 module tools.refinery.language.GenerateProblem
 
 import org.eclipse.xtext.xtext.generator.*
@@ -55,7 +60,7 @@ Workflow {
                         }
                         webSupport = {
                                 // We only generate the {@code AbstractProblemWebModule},
-                                // because we write our own integration code for CodeMirror 6. 
+                                // because we write our own integration code for CodeMirror 6.
                                 framework = 'codemirror'
                                 generateHtmlExample = false
                                 generateJettyLauncher = false
diff --git a/subprojects/language/src/main/java/tools/refinery/language/Problem.xtext b/subprojects/language/src/main/java/tools/refinery/language/Problem.xtext
index 187ebf1f..9e330347 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/Problem.xtext
+++ b/subprojects/language/src/main/java/tools/refinery/language/Problem.xtext
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 grammar tools.refinery.language.Problem with org.eclipse.xtext.common.Terminals
 
 import "http://www.eclipse.org/emf/2002/Ecore" as ecore
diff --git a/subprojects/language/src/main/java/tools/refinery/language/ProblemRuntimeModule.java b/subprojects/language/src/main/java/tools/refinery/language/ProblemRuntimeModule.java
index 5efcdc81..2636a8ee 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/ProblemRuntimeModule.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/ProblemRuntimeModule.java
@@ -1,4 +1,10 @@
 /*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
+/*
  * generated by Xtext 2.25.0
  */
 package tools.refinery.language;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/ProblemStandaloneSetup.java b/subprojects/language/src/main/java/tools/refinery/language/ProblemStandaloneSetup.java
index 41c96114..639d6778 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/ProblemStandaloneSetup.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/ProblemStandaloneSetup.java
@@ -1,4 +1,10 @@
 /*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
+/*
  * generated by Xtext 2.25.0
  */
 package tools.refinery.language;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/conversion/ProblemValueConverterService.java b/subprojects/language/src/main/java/tools/refinery/language/conversion/ProblemValueConverterService.java
index 508688ed..afbc367e 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/conversion/ProblemValueConverterService.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/conversion/ProblemValueConverterService.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.conversion;
 
 import org.eclipse.xtext.common.services.DefaultTerminalConverters;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/conversion/UpperBoundValueConverter.java b/subprojects/language/src/main/java/tools/refinery/language/conversion/UpperBoundValueConverter.java
index be0d15ad..4886757d 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/conversion/UpperBoundValueConverter.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/conversion/UpperBoundValueConverter.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.conversion;
 
 import org.eclipse.xtext.conversion.ValueConverterException;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/formatting2/ProblemFormatter.java b/subprojects/language/src/main/java/tools/refinery/language/formatting2/ProblemFormatter.java
index 797535ea..55a5ac20 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/formatting2/ProblemFormatter.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/formatting2/ProblemFormatter.java
@@ -1,4 +1,10 @@
 /*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
+/*
  * generated by Xtext 2.26.0.M2
  */
 package tools.refinery.language.formatting2;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/naming/NamingUtil.java b/subprojects/language/src/main/java/tools/refinery/language/naming/NamingUtil.java
index e959be74..1647d4e7 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/naming/NamingUtil.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/naming/NamingUtil.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.naming;
 
 import java.util.regex.Pattern;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/naming/ProblemQualifiedNameConverter.java b/subprojects/language/src/main/java/tools/refinery/language/naming/ProblemQualifiedNameConverter.java
index 5453906f..74b4e208 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/naming/ProblemQualifiedNameConverter.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/naming/ProblemQualifiedNameConverter.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.naming;
 
 import org.eclipse.xtext.naming.IQualifiedNameConverter;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/parser/antlr/IdentifierTokenProvider.java b/subprojects/language/src/main/java/tools/refinery/language/parser/antlr/IdentifierTokenProvider.java
index ab133a90..306a86fc 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/parser/antlr/IdentifierTokenProvider.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/parser/antlr/IdentifierTokenProvider.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.parser.antlr;
 
 import com.google.inject.Inject;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/parser/antlr/ProblemTokenSource.java b/subprojects/language/src/main/java/tools/refinery/language/parser/antlr/ProblemTokenSource.java
index 0b4e7185..5b91a6cc 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/parser/antlr/ProblemTokenSource.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/parser/antlr/ProblemTokenSource.java
@@ -1,4 +1,10 @@
 /*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
+/*
  * generated by Xtext 2.29.0.M2
  */
 package tools.refinery.language.parser.antlr;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/parser/antlr/TokenSourceInjectingProblemParser.java b/subprojects/language/src/main/java/tools/refinery/language/parser/antlr/TokenSourceInjectingProblemParser.java
index 0cdd38d8..fe4c0bc7 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/parser/antlr/TokenSourceInjectingProblemParser.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/parser/antlr/TokenSourceInjectingProblemParser.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.parser.antlr;
 
 import com.google.inject.Inject;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/resource/DerivedVariableComputer.java b/subprojects/language/src/main/java/tools/refinery/language/resource/DerivedVariableComputer.java
index 6176b0c4..07c5da41 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/resource/DerivedVariableComputer.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/resource/DerivedVariableComputer.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.resource;
 
 import com.google.inject.Inject;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/resource/ImplicitVariableScope.java b/subprojects/language/src/main/java/tools/refinery/language/resource/ImplicitVariableScope.java
index b0ac2ab6..e97c8287 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/resource/ImplicitVariableScope.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/resource/ImplicitVariableScope.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.resource;
 
 import org.eclipse.emf.ecore.EObject;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/resource/NodeNameCollector.java b/subprojects/language/src/main/java/tools/refinery/language/resource/NodeNameCollector.java
index 419be0d3..e5deca4d 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/resource/NodeNameCollector.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/resource/NodeNameCollector.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.resource;
 
 import com.google.common.collect.ImmutableSet;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/resource/ProblemDerivedStateComputer.java b/subprojects/language/src/main/java/tools/refinery/language/resource/ProblemDerivedStateComputer.java
index 8d3a552a..b145ef27 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/resource/ProblemDerivedStateComputer.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/resource/ProblemDerivedStateComputer.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.resource;
 
 import com.google.inject.Inject;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/resource/ProblemLocationInFileProvider.java b/subprojects/language/src/main/java/tools/refinery/language/resource/ProblemLocationInFileProvider.java
index df822987..1fe2df89 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/resource/ProblemLocationInFileProvider.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/resource/ProblemLocationInFileProvider.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.resource;
 
 import org.eclipse.emf.ecore.EObject;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/resource/ProblemResourceDescriptionStrategy.java b/subprojects/language/src/main/java/tools/refinery/language/resource/ProblemResourceDescriptionStrategy.java
index 1a0b73a8..630be379 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/resource/ProblemResourceDescriptionStrategy.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/resource/ProblemResourceDescriptionStrategy.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.resource;
 
 import org.eclipse.emf.ecore.EObject;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/resource/ReferenceCounter.java b/subprojects/language/src/main/java/tools/refinery/language/resource/ReferenceCounter.java
index ca20325e..f1be55ee 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/resource/ReferenceCounter.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/resource/ReferenceCounter.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.resource;
 
 import java.util.HashMap;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/scoping/ProblemGlobalScopeProvider.java b/subprojects/language/src/main/java/tools/refinery/language/scoping/ProblemGlobalScopeProvider.java
index b749154c..4d2dd772 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/scoping/ProblemGlobalScopeProvider.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/scoping/ProblemGlobalScopeProvider.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.scoping;
 
 import java.util.LinkedHashSet;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/scoping/ProblemLocalScopeProvider.java b/subprojects/language/src/main/java/tools/refinery/language/scoping/ProblemLocalScopeProvider.java
index 61883f0e..229960a0 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/scoping/ProblemLocalScopeProvider.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/scoping/ProblemLocalScopeProvider.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.scoping;
 
 import java.util.List;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/scoping/ProblemScopeProvider.java b/subprojects/language/src/main/java/tools/refinery/language/scoping/ProblemScopeProvider.java
index 3ab07496..cf099aba 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/scoping/ProblemScopeProvider.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/scoping/ProblemScopeProvider.java
@@ -1,4 +1,10 @@
 /*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
+/*
  * generated by Xtext 2.25.0
  */
 package tools.refinery.language.scoping;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/serializer/PreferShortAssertionsProblemSemanticSequencer.java b/subprojects/language/src/main/java/tools/refinery/language/serializer/PreferShortAssertionsProblemSemanticSequencer.java
index 27ce1521..b9cafbc2 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/serializer/PreferShortAssertionsProblemSemanticSequencer.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/serializer/PreferShortAssertionsProblemSemanticSequencer.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.serializer;
 
 import com.google.inject.Inject;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/utils/BuiltinSymbols.java b/subprojects/language/src/main/java/tools/refinery/language/utils/BuiltinSymbols.java
index d3777cd3..c8c7fd4a 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/utils/BuiltinSymbols.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/utils/BuiltinSymbols.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.utils;
 
 import tools.refinery.language.model.problem.*;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/utils/CollectedSymbols.java b/subprojects/language/src/main/java/tools/refinery/language/utils/CollectedSymbols.java
index b5682f32..e4e4d07a 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/utils/CollectedSymbols.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/utils/CollectedSymbols.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.utils;
 
 import java.util.Map;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/utils/ContainmentRole.java b/subprojects/language/src/main/java/tools/refinery/language/utils/ContainmentRole.java
index 708e10a9..a43c7dfe 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/utils/ContainmentRole.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/utils/ContainmentRole.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.utils;
 
 import tools.refinery.language.model.problem.PredicateKind;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/utils/NodeInfo.java b/subprojects/language/src/main/java/tools/refinery/language/utils/NodeInfo.java
index c8f47653..0fa7a454 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/utils/NodeInfo.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/utils/NodeInfo.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.utils;
 
 public record NodeInfo(String name, boolean individual) {
diff --git a/subprojects/language/src/main/java/tools/refinery/language/utils/ProblemDesugarer.java b/subprojects/language/src/main/java/tools/refinery/language/utils/ProblemDesugarer.java
index b8200919..738a0896 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/utils/ProblemDesugarer.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/utils/ProblemDesugarer.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.utils;
 
 import com.google.inject.Inject;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/utils/ProblemUtil.java b/subprojects/language/src/main/java/tools/refinery/language/utils/ProblemUtil.java
index 1e5164d3..9486dc2a 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/utils/ProblemUtil.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/utils/ProblemUtil.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.utils;
 
 import org.eclipse.emf.common.util.URI;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/utils/RelationInfo.java b/subprojects/language/src/main/java/tools/refinery/language/utils/RelationInfo.java
index 2253d257..1c46fe72 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/utils/RelationInfo.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/utils/RelationInfo.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.utils;
 
 import tools.refinery.language.model.problem.*;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/utils/SymbolCollector.java b/subprojects/language/src/main/java/tools/refinery/language/utils/SymbolCollector.java
index 65167ed6..a4ea1113 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/utils/SymbolCollector.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/utils/SymbolCollector.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.utils;
 
 import com.google.inject.Inject;
diff --git a/subprojects/language/src/main/java/tools/refinery/language/validation/ProblemValidator.java b/subprojects/language/src/main/java/tools/refinery/language/validation/ProblemValidator.java
index 659d882c..88d50c5b 100644
--- a/subprojects/language/src/main/java/tools/refinery/language/validation/ProblemValidator.java
+++ b/subprojects/language/src/main/java/tools/refinery/language/validation/ProblemValidator.java
@@ -1,4 +1,10 @@
 /*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
+/*
  * generated by Xtext 2.25.0
  */
 package tools.refinery.language.validation;
diff --git a/subprojects/language/src/main/resources/tools/refinery/language/builtin.problem b/subprojects/language/src/main/resources/tools/refinery/language/builtin.problem
index 06b6da1d..9c1d7669 100644
--- a/subprojects/language/src/main/resources/tools/refinery/language/builtin.problem
+++ b/subprojects/language/src/main/resources/tools/refinery/language/builtin.problem
@@ -1,3 +1,6 @@
+% SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+%
+% SPDX-License-Identifier: EPL-2.0
 problem builtin.
 
 abstract class node {
diff --git a/subprojects/language/src/test/java/tools/refinery/language/tests/ProblemParsingTest.java b/subprojects/language/src/test/java/tools/refinery/language/tests/ProblemParsingTest.java
index 58daa365..c7952369 100644
--- a/subprojects/language/src/test/java/tools/refinery/language/tests/ProblemParsingTest.java
+++ b/subprojects/language/src/test/java/tools/refinery/language/tests/ProblemParsingTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.tests;
 
 import com.google.inject.Inject;
diff --git a/subprojects/language/src/test/java/tools/refinery/language/tests/formatting2/ProblemFormatterTest.java b/subprojects/language/src/test/java/tools/refinery/language/tests/formatting2/ProblemFormatterTest.java
index 6e0802ca..f688d970 100644
--- a/subprojects/language/src/test/java/tools/refinery/language/tests/formatting2/ProblemFormatterTest.java
+++ b/subprojects/language/src/test/java/tools/refinery/language/tests/formatting2/ProblemFormatterTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.tests.formatting2;
 
 import com.google.inject.Inject;
diff --git a/subprojects/language/src/test/java/tools/refinery/language/tests/parser/antlr/IdentifierTokenProviderTest.java b/subprojects/language/src/test/java/tools/refinery/language/tests/parser/antlr/IdentifierTokenProviderTest.java
index abff8d9c..37d38dd9 100644
--- a/subprojects/language/src/test/java/tools/refinery/language/tests/parser/antlr/IdentifierTokenProviderTest.java
+++ b/subprojects/language/src/test/java/tools/refinery/language/tests/parser/antlr/IdentifierTokenProviderTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.tests.parser.antlr;
 
 import com.google.inject.Inject;
diff --git a/subprojects/language/src/test/java/tools/refinery/language/tests/parser/antlr/ProblemTokenSourceTest.java b/subprojects/language/src/test/java/tools/refinery/language/tests/parser/antlr/ProblemTokenSourceTest.java
index cb42d5d0..644744a0 100644
--- a/subprojects/language/src/test/java/tools/refinery/language/tests/parser/antlr/ProblemTokenSourceTest.java
+++ b/subprojects/language/src/test/java/tools/refinery/language/tests/parser/antlr/ProblemTokenSourceTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.tests.parser.antlr;
 
 import com.google.inject.Inject;
diff --git a/subprojects/language/src/test/java/tools/refinery/language/tests/parser/antlr/TransitiveClosureParserTest.java b/subprojects/language/src/test/java/tools/refinery/language/tests/parser/antlr/TransitiveClosureParserTest.java
index 65ceb45f..1180d131 100644
--- a/subprojects/language/src/test/java/tools/refinery/language/tests/parser/antlr/TransitiveClosureParserTest.java
+++ b/subprojects/language/src/test/java/tools/refinery/language/tests/parser/antlr/TransitiveClosureParserTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.tests.parser.antlr;
 
 import com.google.inject.Inject;
diff --git a/subprojects/language/src/test/java/tools/refinery/language/tests/rules/RuleParsingTest.java b/subprojects/language/src/test/java/tools/refinery/language/tests/rules/RuleParsingTest.java
index 72e5e18a..68514bfa 100644
--- a/subprojects/language/src/test/java/tools/refinery/language/tests/rules/RuleParsingTest.java
+++ b/subprojects/language/src/test/java/tools/refinery/language/tests/rules/RuleParsingTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.tests.rules;
 
 import com.google.inject.Inject;
diff --git a/subprojects/language/src/test/java/tools/refinery/language/tests/scoping/NodeScopingTest.java b/subprojects/language/src/test/java/tools/refinery/language/tests/scoping/NodeScopingTest.java
index fa462691..734bfcd1 100644
--- a/subprojects/language/src/test/java/tools/refinery/language/tests/scoping/NodeScopingTest.java
+++ b/subprojects/language/src/test/java/tools/refinery/language/tests/scoping/NodeScopingTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.tests.scoping;
 
 import com.google.inject.Inject;
diff --git a/subprojects/language/src/test/java/tools/refinery/language/tests/serializer/ProblemSerializerTest.java b/subprojects/language/src/test/java/tools/refinery/language/tests/serializer/ProblemSerializerTest.java
index 4a18704a..3f3a081f 100644
--- a/subprojects/language/src/test/java/tools/refinery/language/tests/serializer/ProblemSerializerTest.java
+++ b/subprojects/language/src/test/java/tools/refinery/language/tests/serializer/ProblemSerializerTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.tests.serializer;
 
 import com.google.inject.Inject;
diff --git a/subprojects/language/src/test/java/tools/refinery/language/tests/utils/SymbolCollectorTest.java b/subprojects/language/src/test/java/tools/refinery/language/tests/utils/SymbolCollectorTest.java
index af6de37f..d200eeff 100644
--- a/subprojects/language/src/test/java/tools/refinery/language/tests/utils/SymbolCollectorTest.java
+++ b/subprojects/language/src/test/java/tools/refinery/language/tests/utils/SymbolCollectorTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.tests.utils;
 
 import com.google.inject.Inject;
diff --git a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/ProblemNavigationUtil.java b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/ProblemNavigationUtil.java
index 5761935b..d92011a9 100644
--- a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/ProblemNavigationUtil.java
+++ b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/ProblemNavigationUtil.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.model.tests.utils;
 
 import java.util.List;
diff --git a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/ProblemParseHelper.java b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/ProblemParseHelper.java
index 5e044a94..6f6a87f7 100644
--- a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/ProblemParseHelper.java
+++ b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/ProblemParseHelper.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.model.tests.utils;
 
 import org.eclipse.xtext.testing.util.ParseHelper;
diff --git a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedAction.java b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedAction.java
index d176727b..3a49a0b9 100644
--- a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedAction.java
+++ b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedAction.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.model.tests.utils;
 
 import tools.refinery.language.model.problem.Action;
diff --git a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedArgument.java b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedArgument.java
index 9e4c59f5..ed749fed 100644
--- a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedArgument.java
+++ b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedArgument.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.model.tests.utils;
 
 import tools.refinery.language.model.problem.*;
diff --git a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedAssertion.java b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedAssertion.java
index 2c38639d..b2ef6e48 100644
--- a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedAssertion.java
+++ b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedAssertion.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.model.tests.utils;
 
 import tools.refinery.language.model.problem.Assertion;
diff --git a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedAssertionArgument.java b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedAssertionArgument.java
index 840c1f74..b36f2506 100644
--- a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedAssertionArgument.java
+++ b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedAssertionArgument.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.model.tests.utils;
 
 import tools.refinery.language.model.problem.AssertionArgument;
diff --git a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedAtom.java b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedAtom.java
index 498991f8..c02f447b 100644
--- a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedAtom.java
+++ b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedAtom.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.model.tests.utils;
 
 import tools.refinery.language.model.problem.Atom;
diff --git a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedClassDeclaration.java b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedClassDeclaration.java
index 41b2ea62..a228137c 100644
--- a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedClassDeclaration.java
+++ b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedClassDeclaration.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.model.tests.utils;
 
 import tools.refinery.language.model.problem.ClassDeclaration;
diff --git a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedConjunction.java b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedConjunction.java
index 88ff71ab..b126b1ce 100644
--- a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedConjunction.java
+++ b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedConjunction.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.model.tests.utils;
 
 import tools.refinery.language.model.problem.Conjunction;
diff --git a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedConsequent.java b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedConsequent.java
index 46faa7da..8d6a92f8 100644
--- a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedConsequent.java
+++ b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedConsequent.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.model.tests.utils;
 
 import tools.refinery.language.model.problem.Consequent;
diff --git a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedEnumDeclaration.java b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedEnumDeclaration.java
index 74dcf01b..229a8c0a 100644
--- a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedEnumDeclaration.java
+++ b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedEnumDeclaration.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.model.tests.utils;
 
 import tools.refinery.language.model.problem.EnumDeclaration;
diff --git a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedLiteral.java b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedLiteral.java
index 4aa71b99..160e5dd8 100644
--- a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedLiteral.java
+++ b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedLiteral.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.model.tests.utils;
 
 import tools.refinery.language.model.problem.Atom;
diff --git a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedParametricDefinition.java b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedParametricDefinition.java
index c2f18a60..d44b79ed 100644
--- a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedParametricDefinition.java
+++ b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedParametricDefinition.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.model.tests.utils;
 
 import tools.refinery.language.model.problem.Parameter;
diff --git a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedPredicateDefinition.java b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedPredicateDefinition.java
index 7b95ecc1..2cf5fd89 100644
--- a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedPredicateDefinition.java
+++ b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedPredicateDefinition.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.model.tests.utils;
 
 import tools.refinery.language.model.problem.PredicateDefinition;
diff --git a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedProblem.java b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedProblem.java
index 78ca95c7..e5aa0043 100644
--- a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedProblem.java
+++ b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedProblem.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.model.tests.utils;
 
 import org.eclipse.emf.ecore.resource.Resource.Diagnostic;
diff --git a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedRuleDefinition.java b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedRuleDefinition.java
index a4cf2eaf..326d8ec3 100644
--- a/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedRuleDefinition.java
+++ b/subprojects/language/src/testFixtures/java/tools/refinery/language/model/tests/utils/WrappedRuleDefinition.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.language.model.tests.utils;
 
 import tools.refinery.language.model.problem.RuleDefinition;
diff --git a/subprojects/store-query-viatra/NOTICE.md b/subprojects/store-query-viatra/NOTICE.md
new file mode 100644
index 00000000..7c21726a
--- /dev/null
+++ b/subprojects/store-query-viatra/NOTICE.md
@@ -0,0 +1,87 @@
+<!--
+  Copyright (c) 2018-2019, Zoltan Ujhelyi, IncQuery Labs Ltd.
+  Copyright (c) 2023 The Refinery Authors <https://refinery.tools/>
+
+  SPDX-License-Identifier: EPL-2.0
+-->
+
+This module contains source code from the [Eclipse VIATRA project](https://projects.eclipse.org/projects/modeling.viatra), which is available under the terms of the [Eclipse Public License v 2.0](http://www.eclipse.org/legal/epl-v20.html).
+
+We reproduce the [accompanying notices](https://github.com/viatra/org.eclipse.viatra/blob/d422bcc626a99c4640c0d13931f393ccea0d2326/NOTICE.md) in full below:
+
+# Notices for Eclipse VIATRA
+
+This content is produced and maintained by the Eclipse VIATRA project.
+
+* Project home: https://projects.eclipse.org/projects/modeling.viatra
+
+## Trademarks
+
+Eclipse VIATRA, and VIATRA are trademarks of the Eclipse Foundation.
+
+## Copyright
+
+All content is the property of the respective authors or their employers. For
+more information regarding authorship of content, please consult the listed
+source code repository logs.
+
+## Declared Project Licenses
+
+This program and the accompanying materials are made available under the terms
+of the Eclipse Public License v. 2.0 which is available at
+http://www.eclipse.org/legal/epl-v20.html.
+
+SPDX-License-Identifier: EPL-2.0
+
+## Source Code
+
+The project maintains the following source code repositories:
+
+* http://git.eclipse.org/c/viatra/org.eclipse.viatra.git
+* http://git.eclipse.org/c/viatra/org.eclipse.viatra.modelobfuscator.git
+* http://git.eclipse.org/c/viatra/org.eclipse.viatra.examples.git
+* http://git.eclipse.org/c/viatra/org.eclipse.viatra2.vpm.git
+
+## Third-party Content
+
+This project leverages the following third party content.
+
+ANTLR Runtime only: (3.2)
+
+* License: New BSD license
+
+Apache Commons Language Library (2.1)
+
+* License: Apache License, 2.0
+
+Google Guice / Inject Core API (3.0.0)
+
+* License: Apache License, 2.0
+
+Google Guice / Inject Core API (3.0.0)
+
+* License: Apache License 2.0
+
+Guava (10.0.1)
+
+* License: Apache License, 2.0
+
+Guice (2.0)
+
+* License: Apache License, 2.0
+
+guice-multibindings (3.0.0)
+
+* License: Apache License, 2.0
+
+log4j (1.2.15)
+
+* License: Apache License 2.0
+
+LPG Java Runtime (lpgjavaruntime.jar) (1.1)
+
+* License: Eclipse Public License
+
+mockito (1.9.5)
+
+* License: Apache License, 2.0, New BSD license, MIT license
diff --git a/subprojects/store-query-viatra/build.gradle.kts b/subprojects/store-query-viatra/build.gradle.kts
index 4a894f52..e3a22145 100644
--- a/subprojects/store-query-viatra/build.gradle.kts
+++ b/subprojects/store-query-viatra/build.gradle.kts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 plugins {
         id("tools.refinery.gradle.java-library")
 }
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/ViatraModelQuery.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/ViatraModelQuery.java
index 677e3c7d..3fff6f2e 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/ViatraModelQuery.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/ViatraModelQuery.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra;
 
 import tools.refinery.store.adapter.ModelAdapterBuilderFactory;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/ViatraModelQueryAdapter.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/ViatraModelQueryAdapter.java
index 7e21476b..411e251e 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/ViatraModelQueryAdapter.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/ViatraModelQueryAdapter.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra;
 
 import tools.refinery.store.query.ModelQueryAdapter;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/ViatraModelQueryBuilder.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/ViatraModelQueryBuilder.java
index 7ae86f9f..310171e8 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/ViatraModelQueryBuilder.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/ViatraModelQueryBuilder.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra;
 
 import org.eclipse.viatra.query.runtime.api.ViatraQueryEngineOptions;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/ViatraModelQueryStoreAdapter.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/ViatraModelQueryStoreAdapter.java
index 1ee02f12..da6d7bd5 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/ViatraModelQueryStoreAdapter.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/ViatraModelQueryStoreAdapter.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra;
 
 import org.eclipse.viatra.query.runtime.api.ViatraQueryEngineOptions;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/RelationalScope.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/RelationalScope.java
index 8328e759..d1a65a89 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/RelationalScope.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/RelationalScope.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal;
 
 import org.apache.log4j.Logger;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/ViatraModelQueryAdapterImpl.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/ViatraModelQueryAdapterImpl.java
index 8be30fee..7103a561 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/ViatraModelQueryAdapterImpl.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/ViatraModelQueryAdapterImpl.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal;
 
 import org.eclipse.viatra.query.runtime.api.AdvancedViatraQueryEngine;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/ViatraModelQueryBuilderImpl.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/ViatraModelQueryBuilderImpl.java
index bfabf26e..999d349a 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/ViatraModelQueryBuilderImpl.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/ViatraModelQueryBuilderImpl.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal;
 
 import org.eclipse.viatra.query.runtime.api.IQuerySpecification;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/ViatraModelQueryStoreAdapterImpl.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/ViatraModelQueryStoreAdapterImpl.java
index 04c48c43..aa102a35 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/ViatraModelQueryStoreAdapterImpl.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/ViatraModelQueryStoreAdapterImpl.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal;
 
 import org.eclipse.viatra.query.runtime.api.IQuerySpecification;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/cardinality/UpperCardinalitySumAggregationOperator.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/cardinality/UpperCardinalitySumAggregationOperator.java
index e0bca9e0..bfd4c049 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/cardinality/UpperCardinalitySumAggregationOperator.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/cardinality/UpperCardinalitySumAggregationOperator.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.cardinality;
 
 import org.eclipse.viatra.query.runtime.matchers.psystem.aggregations.BoundAggregator;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/context/DummyBaseIndexer.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/context/DummyBaseIndexer.java
index 2a24b67c..8cb199d2 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/context/DummyBaseIndexer.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/context/DummyBaseIndexer.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.context;
 
 import org.eclipse.viatra.query.runtime.api.scope.IBaseIndex;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/context/RelationalEngineContext.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/context/RelationalEngineContext.java
index 28bc69d0..7220f8ca 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/context/RelationalEngineContext.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/context/RelationalEngineContext.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.context;
 
 import org.eclipse.viatra.query.runtime.api.scope.IBaseIndex;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/context/RelationalQueryMetaContext.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/context/RelationalQueryMetaContext.java
index d2c6beb4..07a5a6ea 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/context/RelationalQueryMetaContext.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/context/RelationalQueryMetaContext.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.context;
 
 import org.eclipse.viatra.query.runtime.matchers.context.AbstractQueryMetaContext;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/context/RelationalRuntimeContext.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/context/RelationalRuntimeContext.java
index 854817b1..71943737 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/context/RelationalRuntimeContext.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/context/RelationalRuntimeContext.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.context;
 
 import org.eclipse.viatra.query.runtime.matchers.context.*;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/ExtendOperationExecutor.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/ExtendOperationExecutor.java
index 2d3dd5a7..37177cbf 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/ExtendOperationExecutor.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/ExtendOperationExecutor.java
@@ -1,5 +1,6 @@
 /*******************************************************************************
  * Copyright (c) 2010-2013, Zoltan Ujhelyi, Akos Horvath, Istvan Rath and Daniel Varro
+ * Copyright (c) 2023 The Refinery Authors <https://refinery.tools/>
  * This program and the accompanying materials are made available under the
  * terms of the Eclipse Public License v. 2.0 which is available at
  * http://www.eclipse.org/legal/epl-v20.html.
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/ExtendPositivePatternCall.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/ExtendPositivePatternCall.java
index aaaece80..9d48c785 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/ExtendPositivePatternCall.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/ExtendPositivePatternCall.java
@@ -1,5 +1,6 @@
 /*******************************************************************************
  * Copyright (c) 2010-2016, Grill Balázs, IncQueryLabs
+ * Copyright (c) 2023 The Refinery Authors <https://refinery.tools/>
  * This program and the accompanying materials are made available under the
  * terms of the Eclipse Public License v. 2.0 which is available at
  * http://www.eclipse.org/legal/epl-v20.html.
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/FlatCostFunction.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/FlatCostFunction.java
index 84cab142..cc906f22 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/FlatCostFunction.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/FlatCostFunction.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.localsearch;
 
 import org.eclipse.viatra.query.runtime.localsearch.planner.cost.IConstraintEvaluationContext;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/GenericTypeExtend.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/GenericTypeExtend.java
index 64653658..96ac4a72 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/GenericTypeExtend.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/GenericTypeExtend.java
@@ -1,5 +1,6 @@
 /*******************************************************************************
  * Copyright (c) 2010-2017, Zoltan Ujhelyi, IncQuery Labs Ltd.
+ * Copyright (c) 2023 The Refinery Authors <https://refinery.tools/>
  * This program and the accompanying materials are made available under the
  * terms of the Eclipse Public License v. 2.0 which is available at
  * http://www.eclipse.org/legal/epl-v20.html.
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/RelationalLocalSearchBackendFactory.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/RelationalLocalSearchBackendFactory.java
index 156eb313..0c77f587 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/RelationalLocalSearchBackendFactory.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/RelationalLocalSearchBackendFactory.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.localsearch;
 
 import org.eclipse.viatra.query.runtime.localsearch.matcher.integration.AbstractLocalSearchResultProvider;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/RelationalLocalSearchResultProvider.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/RelationalLocalSearchResultProvider.java
index be2a38ca..da37be14 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/RelationalLocalSearchResultProvider.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/RelationalLocalSearchResultProvider.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.localsearch;
 
 import org.eclipse.viatra.query.runtime.localsearch.matcher.integration.AbstractLocalSearchResultProvider;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/RelationalOperationCompiler.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/RelationalOperationCompiler.java
index b6832b39..f76ef486 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/RelationalOperationCompiler.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/localsearch/RelationalOperationCompiler.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.localsearch;
 
 import org.eclipse.viatra.query.runtime.localsearch.operations.generic.GenericTypeExtendSingleValue;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/FunctionalCursor.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/FunctionalCursor.java
index 52a83f69..47efb2aa 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/FunctionalCursor.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/FunctionalCursor.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.matcher;
 
 import org.eclipse.viatra.query.runtime.rete.index.IterableIndexer;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/FunctionalViatraMatcher.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/FunctionalViatraMatcher.java
index adb34b8b..f018288b 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/FunctionalViatraMatcher.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/FunctionalViatraMatcher.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.matcher;
 
 import org.eclipse.viatra.query.runtime.matchers.backend.IQueryResultProvider;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/IndexerUtils.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/IndexerUtils.java
index 55eb8c44..15f00b2d 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/IndexerUtils.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/IndexerUtils.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.matcher;
 
 import org.eclipse.viatra.query.runtime.matchers.tuple.TupleMask;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/MatcherUtils.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/MatcherUtils.java
index d327c537..1c784492 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/MatcherUtils.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/MatcherUtils.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.matcher;
 
 import org.eclipse.viatra.query.runtime.matchers.tuple.ITuple;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/RawPatternMatcher.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/RawPatternMatcher.java
index b3d05967..5b82c4b7 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/RawPatternMatcher.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/RawPatternMatcher.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.matcher;
 
 import org.eclipse.viatra.query.runtime.api.GenericPatternMatcher;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/RelationalCursor.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/RelationalCursor.java
index e3df0441..1dc8f5db 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/RelationalCursor.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/RelationalCursor.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.matcher;
 
 import org.eclipse.viatra.query.runtime.matchers.tuple.ITuple;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/RelationalViatraMatcher.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/RelationalViatraMatcher.java
index 9373709d..d1476920 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/RelationalViatraMatcher.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/RelationalViatraMatcher.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.matcher;
 
 import org.eclipse.viatra.query.runtime.matchers.backend.IQueryResultProvider;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/UnsafeFunctionalCursor.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/UnsafeFunctionalCursor.java
index e9540d1d..4a41d724 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/UnsafeFunctionalCursor.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/matcher/UnsafeFunctionalCursor.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.matcher;
 
 import org.eclipse.viatra.query.runtime.matchers.tuple.ITuple;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/AssumptionEvaluator.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/AssumptionEvaluator.java
index a80b0f90..cf127291 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/AssumptionEvaluator.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/AssumptionEvaluator.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.pquery;
 
 import org.eclipse.viatra.query.runtime.matchers.psystem.IValueProvider;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/Dnf2PQuery.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/Dnf2PQuery.java
index 7afeb977..714d41c0 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/Dnf2PQuery.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/Dnf2PQuery.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.pquery;
 
 import org.eclipse.viatra.query.runtime.matchers.backend.IQueryBackendFactory;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/QueryWrapperFactory.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/QueryWrapperFactory.java
index 24ae5196..30f848a6 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/QueryWrapperFactory.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/QueryWrapperFactory.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.pquery;
 
 import org.eclipse.viatra.query.runtime.matchers.context.IInputKey;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/RawPQuery.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/RawPQuery.java
index aad4ba3c..255738c5 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/RawPQuery.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/RawPQuery.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.pquery;
 
 import org.eclipse.viatra.query.runtime.api.GenericQuerySpecification;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/RelationViewWrapper.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/RelationViewWrapper.java
index 48bf558d..02da932b 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/RelationViewWrapper.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/RelationViewWrapper.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.pquery;
 
 import org.eclipse.viatra.query.runtime.matchers.context.common.BaseInputKeyWrapper;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/StatefulMultisetAggregator.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/StatefulMultisetAggregator.java
index 2798a252..461416f7 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/StatefulMultisetAggregator.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/StatefulMultisetAggregator.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.pquery;
 
 import org.eclipse.viatra.query.runtime.matchers.psystem.aggregations.IMultisetAggregationOperator;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/StatelessMultisetAggregator.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/StatelessMultisetAggregator.java
index 7cc71ee9..49175d75 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/StatelessMultisetAggregator.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/StatelessMultisetAggregator.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.pquery;
 
 import org.eclipse.viatra.query.runtime.matchers.psystem.aggregations.IMultisetAggregationOperator;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/TermEvaluator.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/TermEvaluator.java
index ab123c50..1187f57a 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/TermEvaluator.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/TermEvaluator.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.pquery;
 
 import org.eclipse.viatra.query.runtime.matchers.psystem.IExpressionEvaluator;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/ValueProviderBasedValuation.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/ValueProviderBasedValuation.java
index 30c2fce7..62cb8b3a 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/ValueProviderBasedValuation.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/pquery/ValueProviderBasedValuation.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.pquery;
 
 import org.eclipse.viatra.query.runtime.matchers.psystem.IValueProvider;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/update/ModelUpdateListener.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/update/ModelUpdateListener.java
index fc935aa6..c612574f 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/update/ModelUpdateListener.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/update/ModelUpdateListener.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.update;
 
 import org.eclipse.viatra.query.runtime.matchers.context.IInputKey;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/update/RelationViewFilter.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/update/RelationViewFilter.java
index 221f1b4a..efdbfcbe 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/update/RelationViewFilter.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/update/RelationViewFilter.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.update;
 
 import org.eclipse.viatra.query.runtime.matchers.context.IInputKey;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/update/RelationViewUpdateListener.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/update/RelationViewUpdateListener.java
index 5e5f60e3..185e4ebc 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/update/RelationViewUpdateListener.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/update/RelationViewUpdateListener.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.update;
 
 import org.eclipse.viatra.query.runtime.matchers.context.IInputKey;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/update/TupleChangingRelationViewUpdateListener.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/update/TupleChangingRelationViewUpdateListener.java
index 0f6ed3b3..be4951af 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/update/TupleChangingRelationViewUpdateListener.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/update/TupleChangingRelationViewUpdateListener.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.update;
 
 import org.eclipse.viatra.query.runtime.matchers.tuple.Tuples;
diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/update/TuplePreservingRelationViewUpdateListener.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/update/TuplePreservingRelationViewUpdateListener.java
index 91e9371b..9638266b 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/update/TuplePreservingRelationViewUpdateListener.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/viatra/internal/update/TuplePreservingRelationViewUpdateListener.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.update;
 
 import org.eclipse.viatra.query.runtime.matchers.tuple.Tuples;
diff --git a/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/DiagonalQueryTest.java b/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/DiagonalQueryTest.java
index 90229b73..da4aba7f 100644
--- a/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/DiagonalQueryTest.java
+++ b/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/DiagonalQueryTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra;
 
 import org.eclipse.viatra.query.runtime.matchers.backend.QueryEvaluationHint;
diff --git a/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/FunctionalQueryTest.java b/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/FunctionalQueryTest.java
index fa2a008f..3af67a50 100644
--- a/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/FunctionalQueryTest.java
+++ b/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/FunctionalQueryTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra;
 
 import org.eclipse.viatra.query.runtime.matchers.backend.QueryEvaluationHint;
diff --git a/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/QueryTest.java b/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/QueryTest.java
index 8a3f9d88..e82f0a15 100644
--- a/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/QueryTest.java
+++ b/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/QueryTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra;
 
 import org.eclipse.viatra.query.runtime.matchers.backend.QueryEvaluationHint;
diff --git a/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/QueryTransactionTest.java b/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/QueryTransactionTest.java
index abd49341..07b799ac 100644
--- a/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/QueryTransactionTest.java
+++ b/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/QueryTransactionTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra;
 
 import org.eclipse.viatra.query.runtime.matchers.backend.QueryEvaluationHint;
diff --git a/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/internal/cardinality/UpperCardinalitySumAggregationOperatorStreamTest.java b/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/internal/cardinality/UpperCardinalitySumAggregationOperatorStreamTest.java
index c529117e..53d03cbd 100644
--- a/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/internal/cardinality/UpperCardinalitySumAggregationOperatorStreamTest.java
+++ b/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/internal/cardinality/UpperCardinalitySumAggregationOperatorStreamTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.cardinality;
 
 import org.junit.jupiter.params.ParameterizedTest;
diff --git a/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/internal/cardinality/UpperCardinalitySumAggregationOperatorTest.java b/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/internal/cardinality/UpperCardinalitySumAggregationOperatorTest.java
index 20dad543..677eeeac 100644
--- a/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/internal/cardinality/UpperCardinalitySumAggregationOperatorTest.java
+++ b/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/internal/cardinality/UpperCardinalitySumAggregationOperatorTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.cardinality;
 
 import org.junit.jupiter.api.BeforeEach;
diff --git a/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/internal/matcher/MatcherUtilsTest.java b/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/internal/matcher/MatcherUtilsTest.java
index ea0b15ec..968c6c5e 100644
--- a/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/internal/matcher/MatcherUtilsTest.java
+++ b/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/internal/matcher/MatcherUtilsTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.internal.matcher;
 
 import org.eclipse.viatra.query.runtime.matchers.tuple.*;
diff --git a/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/tests/QueryAssertions.java b/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/tests/QueryAssertions.java
index 2769621d..7a25cfdc 100644
--- a/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/tests/QueryAssertions.java
+++ b/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/tests/QueryAssertions.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.tests;
 
 import org.junit.jupiter.api.function.Executable;
diff --git a/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/tests/QueryBackendHint.java b/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/tests/QueryBackendHint.java
index b1818a17..dc0e92c8 100644
--- a/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/tests/QueryBackendHint.java
+++ b/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/tests/QueryBackendHint.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.tests;
 
 import org.eclipse.viatra.query.runtime.matchers.backend.QueryEvaluationHint;
diff --git a/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/tests/QueryEngineTest.java b/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/tests/QueryEngineTest.java
index f129520c..d4f16da7 100644
--- a/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/tests/QueryEngineTest.java
+++ b/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/tests/QueryEngineTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.tests;
 
 import org.junit.jupiter.params.ParameterizedTest;
diff --git a/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/tests/QueryEvaluationHintSource.java b/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/tests/QueryEvaluationHintSource.java
index a55762e2..9e75d5f3 100644
--- a/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/tests/QueryEvaluationHintSource.java
+++ b/subprojects/store-query-viatra/src/test/java/tools/refinery/store/query/viatra/tests/QueryEvaluationHintSource.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.viatra.tests;
 
 import org.eclipse.viatra.query.runtime.matchers.backend.QueryEvaluationHint;
diff --git a/subprojects/store-query/build.gradle.kts b/subprojects/store-query/build.gradle.kts
index 889a0479..4d8e2605 100644
--- a/subprojects/store-query/build.gradle.kts
+++ b/subprojects/store-query/build.gradle.kts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 plugins {
         id("tools.refinery.gradle.java-library")
         id("tools.refinery.gradle.java-test-fixtures")
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/AnyResultSet.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/AnyResultSet.java
index 6d411212..f29bb278 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/AnyResultSet.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/AnyResultSet.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query;
 
 import tools.refinery.store.query.dnf.AnyQuery;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/Constraint.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/Constraint.java
index cec4c19f..10d8a579 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/Constraint.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/Constraint.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query;
 
 import tools.refinery.store.query.equality.LiteralEqualityHelper;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/EmptyResultSet.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/EmptyResultSet.java
index 4c8eeab0..5361f645 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/EmptyResultSet.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/EmptyResultSet.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query;
 
 import tools.refinery.store.map.Cursor;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/ModelQuery.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/ModelQuery.java
index 6a1aeabb..60698498 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/ModelQuery.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/ModelQuery.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query;
 
 import tools.refinery.store.adapter.ModelAdapterType;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/ModelQueryAdapter.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/ModelQueryAdapter.java
index 2e30fec4..ae3bbcbb 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/ModelQueryAdapter.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/ModelQueryAdapter.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query;
 
 import tools.refinery.store.adapter.ModelAdapter;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/ModelQueryBuilder.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/ModelQueryBuilder.java
index 4fdc9210..76d6c3ba 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/ModelQueryBuilder.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/ModelQueryBuilder.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query;
 
 import tools.refinery.store.adapter.ModelAdapterBuilder;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/ModelQueryStoreAdapter.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/ModelQueryStoreAdapter.java
index 514e582b..33318abc 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/ModelQueryStoreAdapter.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/ModelQueryStoreAdapter.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query;
 
 import tools.refinery.store.adapter.ModelStoreAdapter;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/ResultSet.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/ResultSet.java
index 2758c74f..9ab83172 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/ResultSet.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/ResultSet.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query;
 
 import tools.refinery.store.map.Cursor;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/AnyQuery.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/AnyQuery.java
index d0a2367f..5e28af68 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/AnyQuery.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/AnyQuery.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.dnf;
 
 public sealed interface AnyQuery permits Query {
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/Dnf.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/Dnf.java
index 1b7759c7..3321a10f 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/Dnf.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/Dnf.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.dnf;
 
 import tools.refinery.store.query.equality.DnfEqualityChecker;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/DnfBuilder.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/DnfBuilder.java
index aad5a85f..4f920f8f 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/DnfBuilder.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/DnfBuilder.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.dnf;
 
 import tools.refinery.store.query.literal.Literal;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/DnfClause.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/DnfClause.java
index 01830af1..a01d7d55 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/DnfClause.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/DnfClause.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.dnf;
 
 import tools.refinery.store.query.equality.LiteralEqualityHelper;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/DnfUtils.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/DnfUtils.java
index 9bcf944c..65ab3634 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/DnfUtils.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/DnfUtils.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.dnf;
 
 import java.util.UUID;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/FunctionalDependency.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/FunctionalDependency.java
index f4cd109f..b00b2cb7 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/FunctionalDependency.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/FunctionalDependency.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.dnf;
 
 import java.util.HashSet;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/FunctionalQuery.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/FunctionalQuery.java
index 5bf6f8c5..680fa631 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/FunctionalQuery.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/FunctionalQuery.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.dnf;
 
 import tools.refinery.store.query.literal.CallPolarity;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/FunctionalQueryBuilder.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/FunctionalQueryBuilder.java
index ca2bc006..63580676 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/FunctionalQueryBuilder.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/FunctionalQueryBuilder.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.dnf;
 
 import tools.refinery.store.query.literal.Literal;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/Query.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/Query.java
index 32e33052..d3de475f 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/Query.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/Query.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.dnf;
 
 public sealed interface Query<T> extends AnyQuery permits RelationalQuery, FunctionalQuery {
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/QueryBuilder.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/QueryBuilder.java
index ed253cc9..f925c9ac 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/QueryBuilder.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/QueryBuilder.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.dnf;
 
 import tools.refinery.store.query.literal.Literal;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/RelationalQuery.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/RelationalQuery.java
index 5307e509..0741d8d9 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/RelationalQuery.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/dnf/RelationalQuery.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.dnf;
 
 import tools.refinery.store.query.literal.CallLiteral;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/equality/DeepDnfEqualityChecker.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/equality/DeepDnfEqualityChecker.java
index c3bc3ea3..bb60ccc9 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/equality/DeepDnfEqualityChecker.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/equality/DeepDnfEqualityChecker.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.equality;
 
 import tools.refinery.store.query.dnf.Dnf;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/equality/DnfEqualityChecker.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/equality/DnfEqualityChecker.java
index 6b1f2076..4a8bee3b 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/equality/DnfEqualityChecker.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/equality/DnfEqualityChecker.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.equality;
 
 import tools.refinery.store.query.dnf.Dnf;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/equality/LiteralEqualityHelper.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/equality/LiteralEqualityHelper.java
index 07d261ea..0f6ee6c2 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/equality/LiteralEqualityHelper.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/equality/LiteralEqualityHelper.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.equality;
 
 import tools.refinery.store.query.dnf.Dnf;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/AbstractCallLiteral.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/AbstractCallLiteral.java
index 657ca26b..b08c1037 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/AbstractCallLiteral.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/AbstractCallLiteral.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.literal;
 
 import tools.refinery.store.query.Constraint;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/AggregationLiteral.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/AggregationLiteral.java
index df64839c..93e59291 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/AggregationLiteral.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/AggregationLiteral.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.literal;
 
 import tools.refinery.store.query.Constraint;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/AssignLiteral.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/AssignLiteral.java
index 52ac42d7..8cc3fae6 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/AssignLiteral.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/AssignLiteral.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.literal;
 
 import tools.refinery.store.query.equality.LiteralEqualityHelper;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/AssumeLiteral.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/AssumeLiteral.java
index 0b4267b4..58d563da 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/AssumeLiteral.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/AssumeLiteral.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.literal;
 
 import tools.refinery.store.query.equality.LiteralEqualityHelper;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/BooleanLiteral.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/BooleanLiteral.java
index 38be61a4..a32cfd80 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/BooleanLiteral.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/BooleanLiteral.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.literal;
 
 import tools.refinery.store.query.term.Variable;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/CallLiteral.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/CallLiteral.java
index 78fae7f5..82088c8b 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/CallLiteral.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/CallLiteral.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.literal;
 
 import tools.refinery.store.query.Constraint;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/CallPolarity.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/CallPolarity.java
index 84b4b771..ca70b0fd 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/CallPolarity.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/CallPolarity.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.literal;
 
 public enum CallPolarity {
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/CanNegate.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/CanNegate.java
index 3e159c43..35dcb3fb 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/CanNegate.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/CanNegate.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.literal;
 
 public interface CanNegate<T extends CanNegate<T>> extends Literal {
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/ConstantLiteral.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/ConstantLiteral.java
index 93fa3df0..fa7979d1 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/ConstantLiteral.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/ConstantLiteral.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.literal;
 
 import tools.refinery.store.query.equality.LiteralEqualityHelper;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/CountLiteral.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/CountLiteral.java
index 32e7ba3a..11f78fa8 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/CountLiteral.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/CountLiteral.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.literal;
 
 import tools.refinery.store.query.Constraint;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/EquivalenceLiteral.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/EquivalenceLiteral.java
index 4dc86b98..3876574c 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/EquivalenceLiteral.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/EquivalenceLiteral.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.literal;
 
 import tools.refinery.store.query.term.NodeVariable;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/Literal.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/Literal.java
index 6347410e..52411ee8 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/Literal.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/Literal.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.literal;
 
 import tools.refinery.store.query.term.Variable;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/LiteralReduction.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/LiteralReduction.java
index 146089f6..9d8352ea 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/LiteralReduction.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/LiteralReduction.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.literal;
 
 public enum LiteralReduction {
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/Literals.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/Literals.java
index 89039352..b3a87811 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/Literals.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/literal/Literals.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.literal;
 
 import tools.refinery.store.query.term.Term;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/substitution/CompositeSubstitution.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/substitution/CompositeSubstitution.java
index f8064ca2..d175130e 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/substitution/CompositeSubstitution.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/substitution/CompositeSubstitution.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.substitution;
 
 import tools.refinery.store.query.term.Variable;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/substitution/MapBasedSubstitution.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/substitution/MapBasedSubstitution.java
index c7754619..a8201eef 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/substitution/MapBasedSubstitution.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/substitution/MapBasedSubstitution.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.substitution;
 
 import tools.refinery.store.query.term.Variable;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/substitution/RenewingSubstitution.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/substitution/RenewingSubstitution.java
index 7847e582..9b737ceb 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/substitution/RenewingSubstitution.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/substitution/RenewingSubstitution.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.substitution;
 
 import tools.refinery.store.query.term.Variable;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/substitution/StatelessSubstitution.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/substitution/StatelessSubstitution.java
index eed414d9..bb3803d3 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/substitution/StatelessSubstitution.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/substitution/StatelessSubstitution.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.substitution;
 
 import tools.refinery.store.query.term.Variable;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/substitution/Substitution.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/substitution/Substitution.java
index 99f84b9e..5714edf4 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/substitution/Substitution.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/substitution/Substitution.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.substitution;
 
 import tools.refinery.store.query.term.AnyDataVariable;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/substitution/Substitutions.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/substitution/Substitutions.java
index 5d4654da..c4791bf1 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/substitution/Substitutions.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/substitution/Substitutions.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.substitution;
 
 import org.jetbrains.annotations.NotNull;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/Aggregator.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/Aggregator.java
index 47421a94..0684a9d9 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/Aggregator.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/Aggregator.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 import java.util.stream.Stream;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/AnyDataVariable.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/AnyDataVariable.java
index ecfefcf9..ccc063af 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/AnyDataVariable.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/AnyDataVariable.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 import org.jetbrains.annotations.Nullable;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/AnyTerm.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/AnyTerm.java
index 8f998d45..c12c0166 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/AnyTerm.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/AnyTerm.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 import tools.refinery.store.query.equality.LiteralEqualityHelper;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ArithmeticBinaryOperator.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ArithmeticBinaryOperator.java
index 8706a046..5ff7c65c 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ArithmeticBinaryOperator.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ArithmeticBinaryOperator.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 public enum ArithmeticBinaryOperator {
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ArithmeticBinaryTerm.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ArithmeticBinaryTerm.java
index 887a1e6e..e405df00 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ArithmeticBinaryTerm.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ArithmeticBinaryTerm.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 import tools.refinery.store.query.equality.LiteralEqualityHelper;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ArithmeticUnaryOperator.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ArithmeticUnaryOperator.java
index 6a7c25db..d98134f3 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ArithmeticUnaryOperator.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ArithmeticUnaryOperator.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 public enum ArithmeticUnaryOperator {
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ArithmeticUnaryTerm.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ArithmeticUnaryTerm.java
index b78239c7..bdc87545 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ArithmeticUnaryTerm.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ArithmeticUnaryTerm.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 import tools.refinery.store.query.equality.LiteralEqualityHelper;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/AssignedValue.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/AssignedValue.java
index 465e690f..0cf30aa6 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/AssignedValue.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/AssignedValue.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 import tools.refinery.store.query.literal.Literal;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/BinaryTerm.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/BinaryTerm.java
index 34f48ccc..b2994d23 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/BinaryTerm.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/BinaryTerm.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 import tools.refinery.store.query.equality.LiteralEqualityHelper;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ComparisonOperator.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ComparisonOperator.java
index 44dcce10..d04ae22c 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ComparisonOperator.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ComparisonOperator.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 public enum ComparisonOperator {
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ComparisonTerm.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ComparisonTerm.java
index 320d42df..2c304aef 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ComparisonTerm.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ComparisonTerm.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 import tools.refinery.store.query.equality.LiteralEqualityHelper;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ConstantTerm.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ConstantTerm.java
index 2185fe37..b03f07fd 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ConstantTerm.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ConstantTerm.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 import tools.refinery.store.query.equality.LiteralEqualityHelper;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/DataSort.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/DataSort.java
index 4fb44492..6b8669ee 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/DataSort.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/DataSort.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 import org.jetbrains.annotations.Nullable;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/DataVariable.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/DataVariable.java
index af070ca7..50ef745c 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/DataVariable.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/DataVariable.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 import org.jetbrains.annotations.Nullable;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ExtremeValueAggregator.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ExtremeValueAggregator.java
index 57ff597c..657cb631 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ExtremeValueAggregator.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/ExtremeValueAggregator.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 import java.util.Comparator;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/NodeSort.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/NodeSort.java
index 1a4b2d4b..b9be03f7 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/NodeSort.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/NodeSort.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 import org.jetbrains.annotations.Nullable;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/NodeVariable.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/NodeVariable.java
index 7419aaad..de2f945a 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/NodeVariable.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/NodeVariable.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 import org.jetbrains.annotations.Nullable;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/OpaqueTerm.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/OpaqueTerm.java
index 8faa9c75..6626365f 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/OpaqueTerm.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/OpaqueTerm.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 import tools.refinery.store.query.equality.LiteralEqualityHelper;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/Sort.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/Sort.java
index 622bcfce..2b3345f9 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/Sort.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/Sort.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 import org.jetbrains.annotations.Nullable;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/StatefulAggregate.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/StatefulAggregate.java
index 7ce91305..ab310556 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/StatefulAggregate.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/StatefulAggregate.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 public interface StatefulAggregate<R, T> {
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/StatefulAggregator.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/StatefulAggregator.java
index c215a511..df746a90 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/StatefulAggregator.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/StatefulAggregator.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 import java.util.stream.Stream;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/StatelessAggregator.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/StatelessAggregator.java
index 74dbd335..a094919e 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/StatelessAggregator.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/StatelessAggregator.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 import java.util.stream.Stream;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/Term.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/Term.java
index 95434db2..e6818b88 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/Term.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/Term.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 import tools.refinery.store.query.literal.AssignLiteral;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/UnaryTerm.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/UnaryTerm.java
index 4083111a..069e0d95 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/UnaryTerm.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/UnaryTerm.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 import tools.refinery.store.query.equality.LiteralEqualityHelper;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/Variable.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/Variable.java
index 957e10f8..c4ca6f77 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/Variable.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/Variable.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term;
 
 import org.jetbrains.annotations.Nullable;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/bool/BoolConstantTerm.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/bool/BoolConstantTerm.java
index 5079f1ce..e5690ab6 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/bool/BoolConstantTerm.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/bool/BoolConstantTerm.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term.bool;
 
 import tools.refinery.store.query.term.ConstantTerm;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/bool/BoolLogicBinaryTerm.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/bool/BoolLogicBinaryTerm.java
index d85f864d..11e764c2 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/bool/BoolLogicBinaryTerm.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/bool/BoolLogicBinaryTerm.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term.bool;
 
 import tools.refinery.store.query.equality.LiteralEqualityHelper;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/bool/BoolNotTerm.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/bool/BoolNotTerm.java
index 855139b5..bb06cf8b 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/bool/BoolNotTerm.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/bool/BoolNotTerm.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term.bool;
 
 import tools.refinery.store.query.substitution.Substitution;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/bool/BoolTerms.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/bool/BoolTerms.java
index 3d6c8d9d..55825952 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/bool/BoolTerms.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/bool/BoolTerms.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term.bool;
 
 import tools.refinery.store.query.term.ConstantTerm;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/bool/LogicBinaryOperator.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/bool/LogicBinaryOperator.java
index ca9ac66e..93a72f88 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/bool/LogicBinaryOperator.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/bool/LogicBinaryOperator.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term.bool;
 
 public enum LogicBinaryOperator {
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/IntArithmeticBinaryTerm.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/IntArithmeticBinaryTerm.java
index 32e41718..8a76ecbd 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/IntArithmeticBinaryTerm.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/IntArithmeticBinaryTerm.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term.int_;
 
 import tools.refinery.store.query.substitution.Substitution;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/IntArithmeticUnaryTerm.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/IntArithmeticUnaryTerm.java
index 1e769259..8522f2c1 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/IntArithmeticUnaryTerm.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/IntArithmeticUnaryTerm.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term.int_;
 
 import tools.refinery.store.query.substitution.Substitution;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/IntComparisonTerm.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/IntComparisonTerm.java
index 322d2b80..2ce2b2f3 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/IntComparisonTerm.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/IntComparisonTerm.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term.int_;
 import tools.refinery.store.query.substitution.Substitution;
 import tools.refinery.store.query.term.ComparisonOperator;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/IntExtremeValueAggregator.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/IntExtremeValueAggregator.java
index d5a6add0..7982f45c 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/IntExtremeValueAggregator.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/IntExtremeValueAggregator.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term.int_;
 
 import tools.refinery.store.query.term.ExtremeValueAggregator;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/IntSumAggregator.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/IntSumAggregator.java
index 65024f52..cd718c53 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/IntSumAggregator.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/IntSumAggregator.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term.int_;
 
 import tools.refinery.store.query.term.StatelessAggregator;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/IntTerms.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/IntTerms.java
index 86594deb..38f7f449 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/IntTerms.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/IntTerms.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term.int_;
 
 import tools.refinery.store.query.term.*;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/RealToIntTerm.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/RealToIntTerm.java
index 53875ddc..399adf4a 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/RealToIntTerm.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/int_/RealToIntTerm.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term.int_;
 
 import tools.refinery.store.query.substitution.Substitution;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/IntToRealTerm.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/IntToRealTerm.java
index 55590824..4f7d5687 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/IntToRealTerm.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/IntToRealTerm.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term.real;
 
 import tools.refinery.store.query.substitution.Substitution;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/RealArithmeticBinaryTerm.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/RealArithmeticBinaryTerm.java
index 57bcbe5e..8d5c9242 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/RealArithmeticBinaryTerm.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/RealArithmeticBinaryTerm.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term.real;
 
 import tools.refinery.store.query.substitution.Substitution;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/RealArithmeticUnaryTerm.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/RealArithmeticUnaryTerm.java
index 632e68bf..9d233dfc 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/RealArithmeticUnaryTerm.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/RealArithmeticUnaryTerm.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term.real;
 
 import tools.refinery.store.query.substitution.Substitution;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/RealComparisonTerm.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/RealComparisonTerm.java
index 75d97adb..25c88f89 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/RealComparisonTerm.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/RealComparisonTerm.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term.real;
 
 import tools.refinery.store.query.substitution.Substitution;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/RealExtremeValueAggregator.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/RealExtremeValueAggregator.java
index 23384530..526e643b 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/RealExtremeValueAggregator.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/RealExtremeValueAggregator.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term.real;
 
 import tools.refinery.store.query.term.ExtremeValueAggregator;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/RealSumAggregator.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/RealSumAggregator.java
index d5888664..306191a3 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/RealSumAggregator.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/RealSumAggregator.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term.real;
 
 import tools.refinery.store.query.term.StatefulAggregate;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/RealTerms.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/RealTerms.java
index a8117842..1240d478 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/RealTerms.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/term/real/RealTerms.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.term.real;
 
 import tools.refinery.store.query.term.*;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/valuation/RestrictedValuation.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/valuation/RestrictedValuation.java
index fb512d88..fc8406aa 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/valuation/RestrictedValuation.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/valuation/RestrictedValuation.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.valuation;
 
 import tools.refinery.store.query.term.AnyDataVariable;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/valuation/SubstitutedValuation.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/valuation/SubstitutedValuation.java
index 8e79663c..1c14112c 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/valuation/SubstitutedValuation.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/valuation/SubstitutedValuation.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.valuation;
 
 import tools.refinery.store.query.substitution.Substitution;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/valuation/Valuation.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/valuation/Valuation.java
index 3ba9a6b8..88fee35b 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/valuation/Valuation.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/valuation/Valuation.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.valuation;
 
 import org.jetbrains.annotations.Nullable;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/view/AnyRelationView.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/AnyRelationView.java
index 6ae410f2..9aa923af 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/view/AnyRelationView.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/AnyRelationView.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.view;
 
 import tools.refinery.store.model.Model;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/view/FilteredRelationView.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/FilteredRelationView.java
index 64c601bb..9717b2c1 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/view/FilteredRelationView.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/FilteredRelationView.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.view;
 
 import tools.refinery.store.tuple.Tuple;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/view/ForbiddenRelationView.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/ForbiddenRelationView.java
index 050b9496..c19d9282 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/view/ForbiddenRelationView.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/ForbiddenRelationView.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.view;
 
 import tools.refinery.store.representation.Symbol;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/view/FunctionView.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/FunctionView.java
new file mode 100644
index 00000000..cf946d54
--- /dev/null
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/FunctionView.java
@@ -0,0 +1,25 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package tools.refinery.store.query.view;
+
+import tools.refinery.store.query.term.DataSort;
+import tools.refinery.store.query.term.Sort;
+import tools.refinery.store.representation.Symbol;
+
+public final class FunctionView<T> extends AbstractFunctionView<T> {
+        public FunctionView(Symbol<T> symbol, String name) {
+                super(symbol, name);
+        }
+
+        public FunctionView(Symbol<T> symbol) {
+                this(symbol, "function");
+        }
+
+        @Override
+        protected Sort getForwardMappedValueSort() {
+                return new DataSort<>(getSymbol().valueType());
+        }
+}
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/view/FunctionalRelationView.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/FunctionalRelationView.java
index 7ec9e7ac..ab48386e 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/view/FunctionalRelationView.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/FunctionalRelationView.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.view;
 
 import tools.refinery.store.model.Model;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/view/KeyOnlyRelationView.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/KeyOnlyRelationView.java
index e1b2e45b..9553a0cc 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/view/KeyOnlyRelationView.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/KeyOnlyRelationView.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.view;
 
 import tools.refinery.store.representation.Symbol;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/view/MayRelationView.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/MayRelationView.java
index a2a84b3c..60325f35 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/view/MayRelationView.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/MayRelationView.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.view;
 
 import tools.refinery.store.representation.Symbol;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/view/MustRelationView.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/MustRelationView.java
index 72ac0ca3..d7e7ae2e 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/view/MustRelationView.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/MustRelationView.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.view;
 
 import tools.refinery.store.representation.Symbol;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/view/NodeFunctionView.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/NodeFunctionView.java
new file mode 100644
index 00000000..73c296e0
--- /dev/null
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/NodeFunctionView.java
@@ -0,0 +1,26 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package tools.refinery.store.query.view;
+
+import tools.refinery.store.query.term.NodeSort;
+import tools.refinery.store.query.term.Sort;
+import tools.refinery.store.representation.Symbol;
+import tools.refinery.store.tuple.Tuple1;
+
+public final class NodeFunctionView extends AbstractFunctionView<Tuple1> {
+        public NodeFunctionView(Symbol<Tuple1> symbol, String name) {
+                super(symbol, name);
+        }
+
+        public NodeFunctionView(Symbol<Tuple1> symbol) {
+                this(symbol, "function");
+        }
+
+        @Override
+        protected Sort getForwardMappedValueSort() {
+                return NodeSort.INSTANCE;
+        }
+}
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/view/RelationView.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/RelationView.java
index d7164b3b..fd4f47b4 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/view/RelationView.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/RelationView.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.view;
 
 import tools.refinery.store.map.CursorAsIterator;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/view/RelationViewImplication.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/RelationViewImplication.java
index 2ba1fcc4..c54cce2f 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/view/RelationViewImplication.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/RelationViewImplication.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.view;
 
 import java.util.List;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/view/TuplePreservingRelationView.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/TuplePreservingRelationView.java
index 234b3a9a..e6e54aa1 100644
--- a/subprojects/store-query/src/main/java/tools/refinery/store/query/view/TuplePreservingRelationView.java
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/TuplePreservingRelationView.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.view;
 
 import tools.refinery.store.model.Model;
diff --git a/subprojects/store-query/src/main/java/tools/refinery/store/query/view/ViewImplication.java b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/ViewImplication.java
new file mode 100644
index 00000000..fc2db9f2
--- /dev/null
+++ b/subprojects/store-query/src/main/java/tools/refinery/store/query/view/ViewImplication.java
@@ -0,0 +1,23 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+package tools.refinery.store.query.view;
+
+import java.util.List;
+
+public record ViewImplication(AnySymbolView implyingView, AnySymbolView impliedView, List<Integer> impliedIndices) {
+        public ViewImplication {
+                if (impliedIndices.size() != impliedView.arity()) {
+                        throw new IllegalArgumentException("Expected %d implied indices for %s, but %d are provided"
+                                        .formatted(impliedView.arity(), impliedView, impliedIndices.size()));
+                }
+                for (var index : impliedIndices) {
+                        if (impliedView.invalidIndex(index)) {
+                                throw new IllegalArgumentException("%d is not a valid index for %s".formatted(index,
+                                                implyingView));
+                        }
+                }
+        }
+}
diff --git a/subprojects/store-query/src/test/java/tools/refinery/store/query/DnfBuilderTest.java b/subprojects/store-query/src/test/java/tools/refinery/store/query/DnfBuilderTest.java
index ceb46d6f..70cd386b 100644
--- a/subprojects/store-query/src/test/java/tools/refinery/store/query/DnfBuilderTest.java
+++ b/subprojects/store-query/src/test/java/tools/refinery/store/query/DnfBuilderTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query;
 
 import org.junit.jupiter.api.Test;
diff --git a/subprojects/store-query/src/test/java/tools/refinery/store/query/DnfToDefinitionStringTest.java b/subprojects/store-query/src/test/java/tools/refinery/store/query/DnfToDefinitionStringTest.java
index 9b469bb0..7be57745 100644
--- a/subprojects/store-query/src/test/java/tools/refinery/store/query/DnfToDefinitionStringTest.java
+++ b/subprojects/store-query/src/test/java/tools/refinery/store/query/DnfToDefinitionStringTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query;
 
 import org.junit.jupiter.api.Test;
diff --git a/subprojects/store-query/src/test/java/tools/refinery/store/query/tests/StructurallyEqualToTest.java b/subprojects/store-query/src/test/java/tools/refinery/store/query/tests/StructurallyEqualToTest.java
index a61e2b65..e292b3ab 100644
--- a/subprojects/store-query/src/test/java/tools/refinery/store/query/tests/StructurallyEqualToTest.java
+++ b/subprojects/store-query/src/test/java/tools/refinery/store/query/tests/StructurallyEqualToTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.tests;
 
 import org.junit.jupiter.api.Test;
diff --git a/subprojects/store-query/src/testFixtures/java/tools/refinery/store/query/tests/MismatchDescribingDnfEqualityChecker.java b/subprojects/store-query/src/testFixtures/java/tools/refinery/store/query/tests/MismatchDescribingDnfEqualityChecker.java
index 685957c9..526832c4 100644
--- a/subprojects/store-query/src/testFixtures/java/tools/refinery/store/query/tests/MismatchDescribingDnfEqualityChecker.java
+++ b/subprojects/store-query/src/testFixtures/java/tools/refinery/store/query/tests/MismatchDescribingDnfEqualityChecker.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.tests;
 
 import org.hamcrest.Description;
diff --git a/subprojects/store-query/src/testFixtures/java/tools/refinery/store/query/tests/QueryMatchers.java b/subprojects/store-query/src/testFixtures/java/tools/refinery/store/query/tests/QueryMatchers.java
index bf1c1b74..8706ef70 100644
--- a/subprojects/store-query/src/testFixtures/java/tools/refinery/store/query/tests/QueryMatchers.java
+++ b/subprojects/store-query/src/testFixtures/java/tools/refinery/store/query/tests/QueryMatchers.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.tests;
 
 import org.hamcrest.Matcher;
diff --git a/subprojects/store-query/src/testFixtures/java/tools/refinery/store/query/tests/StructurallyEqualTo.java b/subprojects/store-query/src/testFixtures/java/tools/refinery/store/query/tests/StructurallyEqualTo.java
index a9a78f88..ba51c084 100644
--- a/subprojects/store-query/src/testFixtures/java/tools/refinery/store/query/tests/StructurallyEqualTo.java
+++ b/subprojects/store-query/src/testFixtures/java/tools/refinery/store/query/tests/StructurallyEqualTo.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.query.tests;
 
 import org.hamcrest.Description;
diff --git a/subprojects/store-reasoning/build.gradle.kts b/subprojects/store-reasoning/build.gradle.kts
index bb37d9d3..abad0491 100644
--- a/subprojects/store-reasoning/build.gradle.kts
+++ b/subprojects/store-reasoning/build.gradle.kts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 plugins {
         id("tools.refinery.gradle.java-library")
 }
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/AnyPartialInterpretation.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/AnyPartialInterpretation.java
index ebe82c8b..000171a1 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/AnyPartialInterpretation.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/AnyPartialInterpretation.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning;
 
 import tools.refinery.store.reasoning.representation.AnyPartialSymbol;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/MergeResult.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/MergeResult.java
index 0d51598b..d3a216d8 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/MergeResult.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/MergeResult.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning;
 
 public enum MergeResult {
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/PartialInterpretation.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/PartialInterpretation.java
index 4f195e97..4140d640 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/PartialInterpretation.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/PartialInterpretation.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning;
 
 import tools.refinery.store.reasoning.representation.PartialSymbol;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/Reasoning.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/Reasoning.java
index d7d0a999..3d3df2b2 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/Reasoning.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/Reasoning.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning;
 
 import tools.refinery.store.reasoning.internal.ReasoningBuilderImpl;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/ReasoningAdapter.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/ReasoningAdapter.java
index de039dd9..8dedddf7 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/ReasoningAdapter.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/ReasoningAdapter.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning;
 
 import tools.refinery.store.adapter.ModelAdapter;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/ReasoningBuilder.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/ReasoningBuilder.java
index 4030d296..df7b6e4d 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/ReasoningBuilder.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/ReasoningBuilder.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning;
 
 import tools.refinery.store.adapter.ModelAdapterBuilder;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/ReasoningStoreAdapter.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/ReasoningStoreAdapter.java
index f6a6e414..c9795255 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/ReasoningStoreAdapter.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/ReasoningStoreAdapter.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning;
 
 import tools.refinery.store.adapter.ModelStoreAdapter;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/internal/ReasoningAdapterImpl.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/internal/ReasoningAdapterImpl.java
index 0acf0d49..96514d36 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/internal/ReasoningAdapterImpl.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/internal/ReasoningAdapterImpl.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.internal;
 
 import tools.refinery.store.model.Model;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/internal/ReasoningBuilderImpl.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/internal/ReasoningBuilderImpl.java
index e11b14bf..49f7c7d3 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/internal/ReasoningBuilderImpl.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/internal/ReasoningBuilderImpl.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.internal;
 
 import tools.refinery.store.adapter.AbstractModelAdapterBuilder;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/internal/ReasoningStoreAdapterImpl.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/internal/ReasoningStoreAdapterImpl.java
index ac06e68b..cdddd8d6 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/internal/ReasoningStoreAdapterImpl.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/internal/ReasoningStoreAdapterImpl.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.internal;
 
 import tools.refinery.store.reasoning.ReasoningStoreAdapter;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/lifting/DnfLifter.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/lifting/DnfLifter.java
index 2b0e0f08..157f06e8 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/lifting/DnfLifter.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/lifting/DnfLifter.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.lifting;
 
 import org.jetbrains.annotations.Nullable;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/lifting/ModalDnf.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/lifting/ModalDnf.java
index ec381bb8..16fb8fbf 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/lifting/ModalDnf.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/lifting/ModalDnf.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.lifting;
 
 import tools.refinery.store.query.dnf.Dnf;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/literal/ModalConstraint.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/literal/ModalConstraint.java
index 2fbb4607..7fa98104 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/literal/ModalConstraint.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/literal/ModalConstraint.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.literal;
 
 import tools.refinery.store.query.Constraint;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/literal/Modality.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/literal/Modality.java
index f0cb59de..96466d5c 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/literal/Modality.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/literal/Modality.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.literal;
 
 import tools.refinery.store.query.literal.CallPolarity;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/literal/PartialLiterals.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/literal/PartialLiterals.java
index f991f87f..0e46a795 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/literal/PartialLiterals.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/literal/PartialLiterals.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.literal;
 
 import tools.refinery.store.query.literal.CallLiteral;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/representation/AnyPartialFunction.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/representation/AnyPartialFunction.java
index e74cd58b..8d2cb5cf 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/representation/AnyPartialFunction.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/representation/AnyPartialFunction.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.representation;
 
 public sealed interface AnyPartialFunction extends AnyPartialSymbol permits PartialFunction {
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/representation/AnyPartialSymbol.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/representation/AnyPartialSymbol.java
index 6ff5031b..788eef73 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/representation/AnyPartialSymbol.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/representation/AnyPartialSymbol.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.representation;
 
 import tools.refinery.store.representation.AnyAbstractDomain;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/representation/PartialFunction.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/representation/PartialFunction.java
index 59eeeefe..d58d026f 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/representation/PartialFunction.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/representation/PartialFunction.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.representation;
 
 import tools.refinery.store.representation.AbstractDomain;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/representation/PartialRelation.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/representation/PartialRelation.java
index 9bae53a9..fc3dc074 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/representation/PartialRelation.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/representation/PartialRelation.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.representation;
 
 import tools.refinery.store.query.Constraint;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/representation/PartialSymbol.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/representation/PartialSymbol.java
index 1af11f2e..3a08bdd8 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/representation/PartialSymbol.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/representation/PartialSymbol.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.representation;
 
 import tools.refinery.store.representation.AbstractDomain;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/rule/RelationRefinementAction.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/rule/RelationRefinementAction.java
index e8ed05a3..e4c702ea 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/rule/RelationRefinementAction.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/rule/RelationRefinementAction.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.rule;
 
 import tools.refinery.store.reasoning.Reasoning;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/rule/Rule.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/rule/Rule.java
index c7b16d47..45b0f02e 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/rule/Rule.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/rule/Rule.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.rule;
 
 import tools.refinery.store.model.Model;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/rule/RuleAction.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/rule/RuleAction.java
index 4753b8bc..97ea7313 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/rule/RuleAction.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/rule/RuleAction.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.rule;
 
 import tools.refinery.store.model.Model;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/rule/RuleActionExecutor.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/rule/RuleActionExecutor.java
index 7c51e3df..5d743869 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/rule/RuleActionExecutor.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/rule/RuleActionExecutor.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.rule;
 
 import tools.refinery.store.reasoning.MergeResult;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/rule/RuleExecutor.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/rule/RuleExecutor.java
index c20645fc..32cf13ea 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/rule/RuleExecutor.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/rule/RuleExecutor.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.rule;
 
 import tools.refinery.store.model.Model;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/seed/Seed.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/seed/Seed.java
index 90633495..08079f12 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/seed/Seed.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/seed/Seed.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.seed;
 
 import tools.refinery.store.map.Cursor;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/seed/UniformSeed.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/seed/UniformSeed.java
index a030f6ea..451d1513 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/seed/UniformSeed.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/seed/UniformSeed.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.seed;
 
 import tools.refinery.store.map.Cursor;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/Advice.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/Advice.java
index 5cdfedf7..dd7a018d 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/Advice.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/Advice.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.translator;
 
 import tools.refinery.store.reasoning.representation.AnyPartialSymbol;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/AdviceSlot.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/AdviceSlot.java
index f3bd9c5e..bab20340 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/AdviceSlot.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/AdviceSlot.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.translator;
 
 import tools.refinery.store.representation.TruthValue;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/TranslatedRelation.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/TranslatedRelation.java
index 9bab80c9..4a5a8843 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/TranslatedRelation.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/TranslatedRelation.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.translator;
 
 import tools.refinery.store.model.Model;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/TranslationUnit.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/TranslationUnit.java
index 24b93911..7f01122b 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/TranslationUnit.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/TranslationUnit.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.translator;
 
 import tools.refinery.store.model.Model;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/base/BaseDecisionInterpretation.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/base/BaseDecisionInterpretation.java
index b703f142..e7b67ae4 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/base/BaseDecisionInterpretation.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/base/BaseDecisionInterpretation.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.translator.base;
 
 import tools.refinery.store.map.Cursor;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/base/BaseDecisionTranslationUnit.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/base/BaseDecisionTranslationUnit.java
index 36e2782a..d41e11c6 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/base/BaseDecisionTranslationUnit.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/base/BaseDecisionTranslationUnit.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.translator.base;
 
 import tools.refinery.store.model.Model;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/base/TranslatedBaseDecision.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/base/TranslatedBaseDecision.java
index 2294b4fd..4782eb46 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/base/TranslatedBaseDecision.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/base/TranslatedBaseDecision.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.translator.base;
 
 import tools.refinery.store.model.Model;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/EliminatedType.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/EliminatedType.java
index 1b8d7cc9..6e4728db 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/EliminatedType.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/EliminatedType.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.translator.typehierarchy;
 
 import tools.refinery.store.reasoning.representation.PartialRelation;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/ExtendedTypeInfo.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/ExtendedTypeInfo.java
index 43b8e1dd..7a917dcf 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/ExtendedTypeInfo.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/ExtendedTypeInfo.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.translator.typehierarchy;
 
 import org.jetbrains.annotations.NotNull;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/InferredMayTypeRelationView.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/InferredMayTypeRelationView.java
index 12c37c86..aea0a4b9 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/InferredMayTypeRelationView.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/InferredMayTypeRelationView.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.translator.typehierarchy;
 
 import tools.refinery.store.reasoning.representation.PartialRelation;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/InferredMustTypeRelationView.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/InferredMustTypeRelationView.java
index 975f627e..6c995e3a 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/InferredMustTypeRelationView.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/InferredMustTypeRelationView.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.translator.typehierarchy;
 
 import tools.refinery.store.reasoning.representation.PartialRelation;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/InferredType.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/InferredType.java
index a366e262..fd05158b 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/InferredType.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/InferredType.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.translator.typehierarchy;
 
 import tools.refinery.store.reasoning.representation.PartialRelation;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/PreservedType.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/PreservedType.java
index 63dba964..0696f4c3 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/PreservedType.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/PreservedType.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.translator.typehierarchy;
 
 import tools.refinery.store.reasoning.representation.PartialRelation;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeAnalysisResult.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeAnalysisResult.java
index 4f915108..fbf8a7c9 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeAnalysisResult.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeAnalysisResult.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.translator.typehierarchy;
 
 sealed interface TypeAnalysisResult permits EliminatedType, PreservedType {
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeAnalyzer.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeAnalyzer.java
index 62f8e750..e97ce954 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeAnalyzer.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeAnalyzer.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.translator.typehierarchy;
 
 import tools.refinery.store.reasoning.representation.PartialRelation;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeHierarchyTranslationUnit.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeHierarchyTranslationUnit.java
index 4b0761f2..e1aa2014 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeHierarchyTranslationUnit.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeHierarchyTranslationUnit.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.translator.typehierarchy;
 
 import tools.refinery.store.model.Model;
diff --git a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeInfo.java b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeInfo.java
index 313df4df..9f897e46 100644
--- a/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeInfo.java
+++ b/subprojects/store-reasoning/src/main/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeInfo.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.translator.typehierarchy;
 
 import tools.refinery.store.reasoning.representation.PartialRelation;
diff --git a/subprojects/store-reasoning/src/test/java/tools/refinery/store/reasoning/translator/typehierarchy/InferredTypeTest.java b/subprojects/store-reasoning/src/test/java/tools/refinery/store/reasoning/translator/typehierarchy/InferredTypeTest.java
index a8df2312..1d76855c 100644
--- a/subprojects/store-reasoning/src/test/java/tools/refinery/store/reasoning/translator/typehierarchy/InferredTypeTest.java
+++ b/subprojects/store-reasoning/src/test/java/tools/refinery/store/reasoning/translator/typehierarchy/InferredTypeTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.translator.typehierarchy;
 
 import org.junit.jupiter.api.Test;
diff --git a/subprojects/store-reasoning/src/test/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeAnalyzerExampleHierarchyTest.java b/subprojects/store-reasoning/src/test/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeAnalyzerExampleHierarchyTest.java
index b2c1ef1b..05a476c6 100644
--- a/subprojects/store-reasoning/src/test/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeAnalyzerExampleHierarchyTest.java
+++ b/subprojects/store-reasoning/src/test/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeAnalyzerExampleHierarchyTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.translator.typehierarchy;
 
 import org.junit.jupiter.api.BeforeEach;
diff --git a/subprojects/store-reasoning/src/test/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeAnalyzerTest.java b/subprojects/store-reasoning/src/test/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeAnalyzerTest.java
index b7b69ed8..d0ef9d57 100644
--- a/subprojects/store-reasoning/src/test/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeAnalyzerTest.java
+++ b/subprojects/store-reasoning/src/test/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeAnalyzerTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.translator.typehierarchy;
 
 import org.junit.jupiter.api.Test;
diff --git a/subprojects/store-reasoning/src/test/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeAnalyzerTester.java b/subprojects/store-reasoning/src/test/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeAnalyzerTester.java
index 56407730..2924816e 100644
--- a/subprojects/store-reasoning/src/test/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeAnalyzerTester.java
+++ b/subprojects/store-reasoning/src/test/java/tools/refinery/store/reasoning/translator/typehierarchy/TypeAnalyzerTester.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.reasoning.translator.typehierarchy;
 
 import tools.refinery.store.reasoning.representation.PartialRelation;
diff --git a/subprojects/store/build.gradle.kts b/subprojects/store/build.gradle.kts
index d62e5159..2c485020 100644
--- a/subprojects/store/build.gradle.kts
+++ b/subprojects/store/build.gradle.kts
@@ -1,3 +1,9 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
+
 plugins {
         id("tools.refinery.gradle.java-library")
         id("tools.refinery.gradle.jmh")
diff --git a/subprojects/store/src/jmh/java/tools/refinery/store/map/benchmarks/ImmutablePutBenchmark.java b/subprojects/store/src/jmh/java/tools/refinery/store/map/benchmarks/ImmutablePutBenchmark.java
index cdf3d3c8..485fda3d 100644
--- a/subprojects/store/src/jmh/java/tools/refinery/store/map/benchmarks/ImmutablePutBenchmark.java
+++ b/subprojects/store/src/jmh/java/tools/refinery/store/map/benchmarks/ImmutablePutBenchmark.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map.benchmarks;
 
 import java.util.ArrayList;
diff --git a/subprojects/store/src/jmh/java/tools/refinery/store/map/benchmarks/ImmutablePutExecutionPlan.java b/subprojects/store/src/jmh/java/tools/refinery/store/map/benchmarks/ImmutablePutExecutionPlan.java
index 756d504e..edd4f53e 100644
--- a/subprojects/store/src/jmh/java/tools/refinery/store/map/benchmarks/ImmutablePutExecutionPlan.java
+++ b/subprojects/store/src/jmh/java/tools/refinery/store/map/benchmarks/ImmutablePutExecutionPlan.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map.benchmarks;
 
 import java.util.Random;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/adapter/AbstractModelAdapterBuilder.java b/subprojects/store/src/main/java/tools/refinery/store/adapter/AbstractModelAdapterBuilder.java
index 4c142217..70602ef5 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/adapter/AbstractModelAdapterBuilder.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/adapter/AbstractModelAdapterBuilder.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.adapter;
 
 import tools.refinery.store.model.ModelStore;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/adapter/AdapterList.java b/subprojects/store/src/main/java/tools/refinery/store/adapter/AdapterList.java
index 74bae6f0..e896d8d9 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/adapter/AdapterList.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/adapter/AdapterList.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.adapter;
 
 import org.jetbrains.annotations.NotNull;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/adapter/AnyModelAdapterType.java b/subprojects/store/src/main/java/tools/refinery/store/adapter/AnyModelAdapterType.java
index 37a247fe..f161a60b 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/adapter/AnyModelAdapterType.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/adapter/AnyModelAdapterType.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.adapter;
 
 import java.util.Collection;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/adapter/ModelAdapter.java b/subprojects/store/src/main/java/tools/refinery/store/adapter/ModelAdapter.java
index aa079e01..672007aa 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/adapter/ModelAdapter.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/adapter/ModelAdapter.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.adapter;
 
 import tools.refinery.store.model.Model;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/adapter/ModelAdapterBuilder.java b/subprojects/store/src/main/java/tools/refinery/store/adapter/ModelAdapterBuilder.java
index 64b3e59f..709cbb3e 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/adapter/ModelAdapterBuilder.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/adapter/ModelAdapterBuilder.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.adapter;
 
 import tools.refinery.store.model.ModelStore;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/adapter/ModelAdapterBuilderFactory.java b/subprojects/store/src/main/java/tools/refinery/store/adapter/ModelAdapterBuilderFactory.java
index 7c9b01bc..1d549d5b 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/adapter/ModelAdapterBuilderFactory.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/adapter/ModelAdapterBuilderFactory.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.adapter;
 
 import tools.refinery.store.model.ModelStoreBuilder;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/adapter/ModelAdapterType.java b/subprojects/store/src/main/java/tools/refinery/store/adapter/ModelAdapterType.java
index 82ddeb12..6255fe52 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/adapter/ModelAdapterType.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/adapter/ModelAdapterType.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.adapter;
 
 import tools.refinery.store.model.Model;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/adapter/ModelStoreAdapter.java b/subprojects/store/src/main/java/tools/refinery/store/adapter/ModelStoreAdapter.java
index 1eb40ada..bc5f7b6b 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/adapter/ModelStoreAdapter.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/adapter/ModelStoreAdapter.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.adapter;
 
 import tools.refinery.store.model.Model;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/map/AnyVersionedMap.java b/subprojects/store/src/main/java/tools/refinery/store/map/AnyVersionedMap.java
index f82a8bb1..25fc91e6 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/map/AnyVersionedMap.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/map/AnyVersionedMap.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map;
 
 public sealed interface AnyVersionedMap extends Versioned permits VersionedMap {
diff --git a/subprojects/store/src/main/java/tools/refinery/store/map/ContentHashCode.java b/subprojects/store/src/main/java/tools/refinery/store/map/ContentHashCode.java
index 8deeab23..cbea05e1 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/map/ContentHashCode.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/map/ContentHashCode.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map;
 
 public enum ContentHashCode {
diff --git a/subprojects/store/src/main/java/tools/refinery/store/map/ContinousHashProvider.java b/subprojects/store/src/main/java/tools/refinery/store/map/ContinousHashProvider.java
index 75f1e2ab..8e451230 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/map/ContinousHashProvider.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/map/ContinousHashProvider.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map;
 
 import tools.refinery.store.map.internal.Node;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/map/Cursor.java b/subprojects/store/src/main/java/tools/refinery/store/map/Cursor.java
index b420585c..3bdca104 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/map/Cursor.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/map/Cursor.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map;
 
 import java.util.Set;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/map/CursorAsIterator.java b/subprojects/store/src/main/java/tools/refinery/store/map/CursorAsIterator.java
index 65ae6648..c7e4d279 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/map/CursorAsIterator.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/map/CursorAsIterator.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map;
 
 import java.util.Iterator;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/map/Cursors.java b/subprojects/store/src/main/java/tools/refinery/store/map/Cursors.java
index fc8e628b..0a94d449 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/map/Cursors.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/map/Cursors.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map;
 
 public final class Cursors {
diff --git a/subprojects/store/src/main/java/tools/refinery/store/map/DiffCursor.java b/subprojects/store/src/main/java/tools/refinery/store/map/DiffCursor.java
index 701f3ec8..4322e041 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/map/DiffCursor.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/map/DiffCursor.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map;
 
 public interface DiffCursor<K, V> extends Cursor<K,V> {
diff --git a/subprojects/store/src/main/java/tools/refinery/store/map/MapAsIterable.java b/subprojects/store/src/main/java/tools/refinery/store/map/MapAsIterable.java
index 6b986732..199b548f 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/map/MapAsIterable.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/map/MapAsIterable.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map;
 
 import java.util.Iterator;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/map/Versioned.java b/subprojects/store/src/main/java/tools/refinery/store/map/Versioned.java
index 6a23e9d5..55720db3 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/map/Versioned.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/map/Versioned.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map;
 
 public interface Versioned {
diff --git a/subprojects/store/src/main/java/tools/refinery/store/map/VersionedMap.java b/subprojects/store/src/main/java/tools/refinery/store/map/VersionedMap.java
index 31985e94..9bbde24d 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/map/VersionedMap.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/map/VersionedMap.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map;
 
 public non-sealed interface VersionedMap<K, V> extends AnyVersionedMap {
diff --git a/subprojects/store/src/main/java/tools/refinery/store/map/VersionedMapStore.java b/subprojects/store/src/main/java/tools/refinery/store/map/VersionedMapStore.java
index a8d7fb1a..5aafa338 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/map/VersionedMapStore.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/map/VersionedMapStore.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map;
 
 import java.util.Set;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/map/VersionedMapStoreConfiguration.java b/subprojects/store/src/main/java/tools/refinery/store/map/VersionedMapStoreConfiguration.java
index 3856460d..b00cd961 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/map/VersionedMapStoreConfiguration.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/map/VersionedMapStoreConfiguration.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map;
 
 public class VersionedMapStoreConfiguration {
diff --git a/subprojects/store/src/main/java/tools/refinery/store/map/VersionedMapStoreImpl.java b/subprojects/store/src/main/java/tools/refinery/store/map/VersionedMapStoreImpl.java
index 113874e7..aade4aeb 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/map/VersionedMapStoreImpl.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/map/VersionedMapStoreImpl.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map;
 
 import tools.refinery.store.map.internal.ImmutableNode;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/map/internal/HashClash.java b/subprojects/store/src/main/java/tools/refinery/store/map/internal/HashClash.java
index 5402ed4a..61b3d1b8 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/map/internal/HashClash.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/map/internal/HashClash.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map.internal;
 
 enum HashClash {
diff --git a/subprojects/store/src/main/java/tools/refinery/store/map/internal/ImmutableNode.java b/subprojects/store/src/main/java/tools/refinery/store/map/internal/ImmutableNode.java
index 9397dede..03dffc15 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/map/internal/ImmutableNode.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/map/internal/ImmutableNode.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map.internal;
 
 import java.util.Arrays;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/map/internal/MapCursor.java b/subprojects/store/src/main/java/tools/refinery/store/map/internal/MapCursor.java
index 91a71e3d..f34ec7bb 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/map/internal/MapCursor.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/map/internal/MapCursor.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map.internal;
 
 import tools.refinery.store.map.AnyVersionedMap;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/map/internal/MapDiffCursor.java b/subprojects/store/src/main/java/tools/refinery/store/map/internal/MapDiffCursor.java
index 9cd78113..d31f1a05 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/map/internal/MapDiffCursor.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/map/internal/MapDiffCursor.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map.internal;
 
 import tools.refinery.store.map.AnyVersionedMap;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/map/internal/MutableNode.java b/subprojects/store/src/main/java/tools/refinery/store/map/internal/MutableNode.java
index 7c3cf7e8..1129ee5a 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/map/internal/MutableNode.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/map/internal/MutableNode.java
@@ -1,10 +1,15 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map.internal;
 
+import tools.refinery.store.map.ContinousHashProvider;
+
 import java.util.Arrays;
 import java.util.Map;
 
-import tools.refinery.store.map.ContinousHashProvider;
-
 public class MutableNode<K, V> extends Node<K, V> {
         int cachedHash;
         protected Object[] content;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/map/internal/Node.java b/subprojects/store/src/main/java/tools/refinery/store/map/internal/Node.java
index 2260cd5b..958d645f 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/map/internal/Node.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/map/internal/Node.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map.internal;
 
 import java.util.Map;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/map/internal/OldValueBox.java b/subprojects/store/src/main/java/tools/refinery/store/map/internal/OldValueBox.java
index 5534c703..354af51d 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/map/internal/OldValueBox.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/map/internal/OldValueBox.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map.internal;
 
 public class OldValueBox<V>{
diff --git a/subprojects/store/src/main/java/tools/refinery/store/map/internal/VersionedMapImpl.java b/subprojects/store/src/main/java/tools/refinery/store/map/internal/VersionedMapImpl.java
index 301bcb95..7abece0d 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/map/internal/VersionedMapImpl.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/map/internal/VersionedMapImpl.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map.internal;
 
 import tools.refinery.store.map.*;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/model/AnyInterpretation.java b/subprojects/store/src/main/java/tools/refinery/store/model/AnyInterpretation.java
index d18ba71d..f906b48a 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/model/AnyInterpretation.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/model/AnyInterpretation.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.model;
 
 import tools.refinery.store.representation.AnySymbol;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/model/Interpretation.java b/subprojects/store/src/main/java/tools/refinery/store/model/Interpretation.java
index 55949d0c..26ad9a69 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/model/Interpretation.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/model/Interpretation.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.model;
 
 import tools.refinery.store.map.Cursor;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/model/InterpretationListener.java b/subprojects/store/src/main/java/tools/refinery/store/model/InterpretationListener.java
index 73950779..6f7b24c1 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/model/InterpretationListener.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/model/InterpretationListener.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.model;
 
 import tools.refinery.store.tuple.Tuple;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/model/Model.java b/subprojects/store/src/main/java/tools/refinery/store/model/Model.java
index 6ca1ac7b..f4131756 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/model/Model.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/model/Model.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.model;
 
 import tools.refinery.store.adapter.ModelAdapter;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/model/ModelDiffCursor.java b/subprojects/store/src/main/java/tools/refinery/store/model/ModelDiffCursor.java
index 97bf2039..7b236891 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/model/ModelDiffCursor.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/model/ModelDiffCursor.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.model;
 
 import tools.refinery.store.map.DiffCursor;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/model/ModelListener.java b/subprojects/store/src/main/java/tools/refinery/store/model/ModelListener.java
index f67540bb..a9ad8cfd 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/model/ModelListener.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/model/ModelListener.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.model;
 
 public interface ModelListener {
diff --git a/subprojects/store/src/main/java/tools/refinery/store/model/ModelStore.java b/subprojects/store/src/main/java/tools/refinery/store/model/ModelStore.java
index 2e7e62c3..a72399f7 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/model/ModelStore.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/model/ModelStore.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.model;
 
 import tools.refinery.store.adapter.ModelAdapterType;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/model/ModelStoreBuilder.java b/subprojects/store/src/main/java/tools/refinery/store/model/ModelStoreBuilder.java
index 289099da..d9354bdb 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/model/ModelStoreBuilder.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/model/ModelStoreBuilder.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.model;
 
 import tools.refinery.store.adapter.ModelAdapterBuilder;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/model/TupleHashProvider.java b/subprojects/store/src/main/java/tools/refinery/store/model/TupleHashProvider.java
index 4bcf9ff4..fe1c2ab5 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/model/TupleHashProvider.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/model/TupleHashProvider.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.model;
 
 import tools.refinery.store.map.ContinousHashProvider;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/model/TupleHashProviderBitMagic.java b/subprojects/store/src/main/java/tools/refinery/store/model/TupleHashProviderBitMagic.java
index 33059a1b..14116a90 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/model/TupleHashProviderBitMagic.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/model/TupleHashProviderBitMagic.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.model;
 
 import tools.refinery.store.map.ContinousHashProvider;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/model/internal/ModelAction.java b/subprojects/store/src/main/java/tools/refinery/store/model/internal/ModelAction.java
index f68859db..dbd95d80 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/model/internal/ModelAction.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/model/internal/ModelAction.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.model.internal;
 
 public enum ModelAction {
diff --git a/subprojects/store/src/main/java/tools/refinery/store/model/internal/ModelImpl.java b/subprojects/store/src/main/java/tools/refinery/store/model/internal/ModelImpl.java
index 9eb438c4..50a408da 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/model/internal/ModelImpl.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/model/internal/ModelImpl.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.model.internal;
 
 import tools.refinery.store.adapter.AdapterList;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/model/internal/ModelStoreBuilderImpl.java b/subprojects/store/src/main/java/tools/refinery/store/model/internal/ModelStoreBuilderImpl.java
index 79f7195d..70bccb96 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/model/internal/ModelStoreBuilderImpl.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/model/internal/ModelStoreBuilderImpl.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.model.internal;
 
 import tools.refinery.store.adapter.AdapterList;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/model/internal/ModelStoreImpl.java b/subprojects/store/src/main/java/tools/refinery/store/model/internal/ModelStoreImpl.java
index e8c205e4..bfae7181 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/model/internal/ModelStoreImpl.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/model/internal/ModelStoreImpl.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.model.internal;
 
 import tools.refinery.store.adapter.AdapterList;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/model/internal/SymbolEquivalenceClass.java b/subprojects/store/src/main/java/tools/refinery/store/model/internal/SymbolEquivalenceClass.java
index 5bf1b90d..136f2976 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/model/internal/SymbolEquivalenceClass.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/model/internal/SymbolEquivalenceClass.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.model.internal;
 
 import tools.refinery.store.representation.Symbol;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/model/internal/VersionedInterpretation.java b/subprojects/store/src/main/java/tools/refinery/store/model/internal/VersionedInterpretation.java
index 6d82f5d7..86101ce3 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/model/internal/VersionedInterpretation.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/model/internal/VersionedInterpretation.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.model.internal;
 
 import tools.refinery.store.map.Cursor;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/representation/AbstractDomain.java b/subprojects/store/src/main/java/tools/refinery/store/representation/AbstractDomain.java
index 18903ead..52c740e8 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/representation/AbstractDomain.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/representation/AbstractDomain.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.representation;
 
 import java.util.Optional;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/representation/AnyAbstractDomain.java b/subprojects/store/src/main/java/tools/refinery/store/representation/AnyAbstractDomain.java
index 4c428a1e..c354fab7 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/representation/AnyAbstractDomain.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/representation/AnyAbstractDomain.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.representation;
 
 public sealed interface AnyAbstractDomain permits AbstractDomain {
diff --git a/subprojects/store/src/main/java/tools/refinery/store/representation/AnySymbol.java b/subprojects/store/src/main/java/tools/refinery/store/representation/AnySymbol.java
index 20b9eead..b2377905 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/representation/AnySymbol.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/representation/AnySymbol.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.representation;
 
 public sealed interface AnySymbol permits Symbol {
diff --git a/subprojects/store/src/main/java/tools/refinery/store/representation/Symbol.java b/subprojects/store/src/main/java/tools/refinery/store/representation/Symbol.java
index 30b1c03f..aad88921 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/representation/Symbol.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/representation/Symbol.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.representation;
 
 public record Symbol<T>(String name, int arity, Class<T> valueType, T defaultValue) implements AnySymbol {
diff --git a/subprojects/store/src/main/java/tools/refinery/store/representation/TruthValue.java b/subprojects/store/src/main/java/tools/refinery/store/representation/TruthValue.java
index b7893fd3..40baf9a5 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/representation/TruthValue.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/representation/TruthValue.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.representation;
 
 public enum TruthValue {
diff --git a/subprojects/store/src/main/java/tools/refinery/store/representation/TruthValueDomain.java b/subprojects/store/src/main/java/tools/refinery/store/representation/TruthValueDomain.java
index 29858bce..89f8dd19 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/representation/TruthValueDomain.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/representation/TruthValueDomain.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.representation;
 
 import java.util.Optional;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/CardinalityInterval.java b/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/CardinalityInterval.java
index 273d0de7..704ca2fc 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/CardinalityInterval.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/CardinalityInterval.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.representation.cardinality;
 
 public sealed interface CardinalityInterval permits NonEmptyCardinalityInterval, EmptyCardinalityInterval {
diff --git a/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/CardinalityIntervals.java b/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/CardinalityIntervals.java
index e1a08bf9..ad16a3e8 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/CardinalityIntervals.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/CardinalityIntervals.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.representation.cardinality;
 
 public final class CardinalityIntervals {
diff --git a/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/EmptyCardinalityInterval.java b/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/EmptyCardinalityInterval.java
index ab3ad9d1..49911c29 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/EmptyCardinalityInterval.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/EmptyCardinalityInterval.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.representation.cardinality;
 
 public final class EmptyCardinalityInterval implements CardinalityInterval {
diff --git a/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/FiniteUpperCardinality.java b/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/FiniteUpperCardinality.java
index 381c8a57..82afdbbc 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/FiniteUpperCardinality.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/FiniteUpperCardinality.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.representation.cardinality;
 
 import org.jetbrains.annotations.NotNull;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/NonEmptyCardinalityInterval.java b/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/NonEmptyCardinalityInterval.java
index 32b3786f..38bd53bf 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/NonEmptyCardinalityInterval.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/NonEmptyCardinalityInterval.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.representation.cardinality;
 
 import java.util.function.BinaryOperator;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/UnboundedUpperCardinality.java b/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/UnboundedUpperCardinality.java
index 593bc322..a5634020 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/UnboundedUpperCardinality.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/UnboundedUpperCardinality.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.representation.cardinality;
 
 import org.jetbrains.annotations.NotNull;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/UpperCardinalities.java b/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/UpperCardinalities.java
index d850fdc9..1e18dde0 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/UpperCardinalities.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/UpperCardinalities.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.representation.cardinality;
 
 public final class UpperCardinalities {
diff --git a/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/UpperCardinality.java b/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/UpperCardinality.java
index c6e31cb7..5dbaa922 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/UpperCardinality.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/representation/cardinality/UpperCardinality.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.representation.cardinality;
 
 public sealed interface UpperCardinality extends Comparable<UpperCardinality> permits FiniteUpperCardinality,
diff --git a/subprojects/store/src/main/java/tools/refinery/store/tuple/Tuple.java b/subprojects/store/src/main/java/tools/refinery/store/tuple/Tuple.java
index 51e2895a..6700417a 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/tuple/Tuple.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/tuple/Tuple.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.tuple;
 
 public sealed interface Tuple permits Tuple0, Tuple1, Tuple2, Tuple3, Tuple4, TupleN {
diff --git a/subprojects/store/src/main/java/tools/refinery/store/tuple/Tuple0.java b/subprojects/store/src/main/java/tools/refinery/store/tuple/Tuple0.java
index 266e2cca..1451099c 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/tuple/Tuple0.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/tuple/Tuple0.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.tuple;
 
 import static tools.refinery.store.tuple.TupleConstants.TUPLE_BEGIN;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/tuple/Tuple1.java b/subprojects/store/src/main/java/tools/refinery/store/tuple/Tuple1.java
index bdcc47b5..cda145d7 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/tuple/Tuple1.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/tuple/Tuple1.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.tuple;
 
 import tools.refinery.store.model.TupleHashProvider;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/tuple/Tuple2.java b/subprojects/store/src/main/java/tools/refinery/store/tuple/Tuple2.java
index fc0fbd8e..b669674b 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/tuple/Tuple2.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/tuple/Tuple2.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.tuple;
 
 import static tools.refinery.store.tuple.TupleConstants.*;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/tuple/Tuple3.java b/subprojects/store/src/main/java/tools/refinery/store/tuple/Tuple3.java
index a6ec17b0..542ed328 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/tuple/Tuple3.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/tuple/Tuple3.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.tuple;
 
 import static tools.refinery.store.tuple.TupleConstants.*;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/tuple/Tuple4.java b/subprojects/store/src/main/java/tools/refinery/store/tuple/Tuple4.java
index 66cef32b..121a15f6 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/tuple/Tuple4.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/tuple/Tuple4.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.tuple;
 
 import static tools.refinery.store.tuple.TupleConstants.*;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/tuple/TupleConstants.java b/subprojects/store/src/main/java/tools/refinery/store/tuple/TupleConstants.java
index 3d95a655..f7d27848 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/tuple/TupleConstants.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/tuple/TupleConstants.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.tuple;
 
 final class TupleConstants {
diff --git a/subprojects/store/src/main/java/tools/refinery/store/tuple/TupleN.java b/subprojects/store/src/main/java/tools/refinery/store/tuple/TupleN.java
index 512bab49..b66af491 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/tuple/TupleN.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/tuple/TupleN.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.tuple;
 
 import java.util.Arrays;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/util/CollectionsUtil.java b/subprojects/store/src/main/java/tools/refinery/store/util/CollectionsUtil.java
index 841d0dfa..adecd79b 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/util/CollectionsUtil.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/util/CollectionsUtil.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.util;
 
 import java.util.Iterator;
diff --git a/subprojects/store/src/main/java/tools/refinery/store/util/CycleDetectingMapper.java b/subprojects/store/src/main/java/tools/refinery/store/util/CycleDetectingMapper.java
index 8a151d01..78ad2ad7 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/util/CycleDetectingMapper.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/util/CycleDetectingMapper.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.util;
 
 import java.util.*;
diff --git a/subprojects/store/src/test/java/tools/refinery/store/map/tests/MapUnitTests.java b/subprojects/store/src/test/java/tools/refinery/store/map/tests/MapUnitTests.java
index 77c62305..153f2e78 100644
--- a/subprojects/store/src/test/java/tools/refinery/store/map/tests/MapUnitTests.java
+++ b/subprojects/store/src/test/java/tools/refinery/store/map/tests/MapUnitTests.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map.tests;
 
 import org.junit.jupiter.api.Test;
diff --git a/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/CommitFuzzTest.java b/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/CommitFuzzTest.java
index 1f9d022f..eabe5bd1 100644
--- a/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/CommitFuzzTest.java
+++ b/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/CommitFuzzTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map.tests.fuzz;
 
 import static org.junit.jupiter.api.Assertions.fail;
diff --git a/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/ContentEqualsFuzzTest.java b/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/ContentEqualsFuzzTest.java
index 93ecfec3..b0502a2b 100644
--- a/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/ContentEqualsFuzzTest.java
+++ b/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/ContentEqualsFuzzTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map.tests.fuzz;
 
 import org.junit.jupiter.api.Tag;
diff --git a/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/DiffCursorFuzzTest.java b/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/DiffCursorFuzzTest.java
index e6334224..8274336e 100644
--- a/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/DiffCursorFuzzTest.java
+++ b/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/DiffCursorFuzzTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map.tests.fuzz;
 
 import static org.junit.jupiter.api.Assertions.fail;
diff --git a/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/MultiThreadFuzzTest.java b/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/MultiThreadFuzzTest.java
index 1ab431a8..ab2b9435 100644
--- a/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/MultiThreadFuzzTest.java
+++ b/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/MultiThreadFuzzTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map.tests.fuzz;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
diff --git a/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/MultiThreadTestRunnable.java b/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/MultiThreadTestRunnable.java
index f77f9ee5..502c8362 100644
--- a/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/MultiThreadTestRunnable.java
+++ b/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/MultiThreadTestRunnable.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map.tests.fuzz;
 
 import java.util.ArrayList;
diff --git a/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/MutableFuzzTest.java b/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/MutableFuzzTest.java
index d40c49c4..32dde0da 100644
--- a/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/MutableFuzzTest.java
+++ b/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/MutableFuzzTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map.tests.fuzz;
 
 import static org.junit.jupiter.api.Assertions.fail;
diff --git a/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/MutableImmutableCompareFuzzTest.java b/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/MutableImmutableCompareFuzzTest.java
index 410705a2..347c49be 100644
--- a/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/MutableImmutableCompareFuzzTest.java
+++ b/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/MutableImmutableCompareFuzzTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map.tests.fuzz;
 
 import static org.junit.jupiter.api.Assertions.fail;
diff --git a/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/RestoreFuzzTest.java b/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/RestoreFuzzTest.java
index 2e29a03f..f7b9d61e 100644
--- a/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/RestoreFuzzTest.java
+++ b/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/RestoreFuzzTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map.tests.fuzz;
 
 import static org.junit.jupiter.api.Assertions.fail;
diff --git a/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/SharedStoreFuzzTest.java b/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/SharedStoreFuzzTest.java
index 914a0f63..4b4172d0 100644
--- a/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/SharedStoreFuzzTest.java
+++ b/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/SharedStoreFuzzTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map.tests.fuzz;
 
 import java.util.HashMap;
diff --git a/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/utils/FuzzTestUtils.java b/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/utils/FuzzTestUtils.java
index e75d7f5a..a819d348 100644
--- a/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/utils/FuzzTestUtils.java
+++ b/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/utils/FuzzTestUtils.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map.tests.fuzz.utils;
 
 import java.util.Arrays;
diff --git a/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/utils/FuzzTestUtilsTest.java b/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/utils/FuzzTestUtilsTest.java
index 72f2a46c..dc621574 100644
--- a/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/utils/FuzzTestUtilsTest.java
+++ b/subprojects/store/src/test/java/tools/refinery/store/map/tests/fuzz/utils/FuzzTestUtilsTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map.tests.fuzz.utils;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
diff --git a/subprojects/store/src/test/java/tools/refinery/store/map/tests/utils/MapTestEnvironment.java b/subprojects/store/src/test/java/tools/refinery/store/map/tests/utils/MapTestEnvironment.java
index 2d03ebaf..f861f496 100644
--- a/subprojects/store/src/test/java/tools/refinery/store/map/tests/utils/MapTestEnvironment.java
+++ b/subprojects/store/src/test/java/tools/refinery/store/map/tests/utils/MapTestEnvironment.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.map.tests.utils;
 
 import tools.refinery.store.map.*;
diff --git a/subprojects/store/src/test/java/tools/refinery/store/model/hashtests/HashEfficiencyTest.java b/subprojects/store/src/test/java/tools/refinery/store/model/hashtests/HashEfficiencyTest.java
index bb083805..4d4f5e26 100644
--- a/subprojects/store/src/test/java/tools/refinery/store/model/hashtests/HashEfficiencyTest.java
+++ b/subprojects/store/src/test/java/tools/refinery/store/model/hashtests/HashEfficiencyTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.model.hashtests;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
diff --git a/subprojects/store/src/test/java/tools/refinery/store/model/tests/ModelTest.java b/subprojects/store/src/test/java/tools/refinery/store/model/tests/ModelTest.java
index 9536a444..1017ff28 100644
--- a/subprojects/store/src/test/java/tools/refinery/store/model/tests/ModelTest.java
+++ b/subprojects/store/src/test/java/tools/refinery/store/model/tests/ModelTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.model.tests;
 
 import org.junit.jupiter.api.Test;
diff --git a/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/CardinalityIntervalTest.java b/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/CardinalityIntervalTest.java
index 96fdc49e..6a66fa84 100644
--- a/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/CardinalityIntervalTest.java
+++ b/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/CardinalityIntervalTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.representation.cardinality;
 
 import org.junit.jupiter.params.ParameterizedTest;
diff --git a/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/CardinalityIntervalsTest.java b/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/CardinalityIntervalsTest.java
index 4a9ef8da..9fe76159 100644
--- a/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/CardinalityIntervalsTest.java
+++ b/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/CardinalityIntervalsTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.representation.cardinality;
 
 import org.junit.jupiter.api.Test;
diff --git a/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/EmptyCardinalityIntervalTest.java b/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/EmptyCardinalityIntervalTest.java
index e8b77b9f..24a788a8 100644
--- a/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/EmptyCardinalityIntervalTest.java
+++ b/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/EmptyCardinalityIntervalTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.representation.cardinality;
 
 import org.junit.jupiter.api.Test;
diff --git a/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/FiniteCardinalityIntervalTest.java b/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/FiniteCardinalityIntervalTest.java
index 9a190818..6cf56fae 100644
--- a/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/FiniteCardinalityIntervalTest.java
+++ b/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/FiniteCardinalityIntervalTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.representation.cardinality;
 
 import org.junit.jupiter.api.Test;
diff --git a/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/FiniteUpperCardinalityTest.java b/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/FiniteUpperCardinalityTest.java
index 90c21759..7c641c47 100644
--- a/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/FiniteUpperCardinalityTest.java
+++ b/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/FiniteUpperCardinalityTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.representation.cardinality;
 
 import org.junit.jupiter.api.Test;
diff --git a/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/UpperCardinalitiesTest.java b/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/UpperCardinalitiesTest.java
index 3c7c0320..e61f7b36 100644
--- a/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/UpperCardinalitiesTest.java
+++ b/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/UpperCardinalitiesTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.representation.cardinality;
 
 import org.junit.jupiter.api.Test;
diff --git a/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/UpperCardinalityTest.java b/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/UpperCardinalityTest.java
index e87ce29b..10b4dd20 100644
--- a/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/UpperCardinalityTest.java
+++ b/subprojects/store/src/test/java/tools/refinery/store/representation/cardinality/UpperCardinalityTest.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.representation.cardinality;
 
 import org.junit.jupiter.params.ParameterizedTest;
diff --git a/subprojects/store/src/test/java/tools/refinery/store/util/CollectionsUtilTests.java b/subprojects/store/src/test/java/tools/refinery/store/util/CollectionsUtilTests.java
index 171be0e5..8d50fa8a 100644
--- a/subprojects/store/src/test/java/tools/refinery/store/util/CollectionsUtilTests.java
+++ b/subprojects/store/src/test/java/tools/refinery/store/util/CollectionsUtilTests.java
@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ */
 package tools.refinery.store.util;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
diff --git a/yarn.lock.license b/yarn.lock.license
new file mode 100644
index 00000000..7a5a2a4b
--- /dev/null
+++ b/yarn.lock.license
@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
+
+SPDX-License-Identifier: CC0-1.0