3 files changed, 7 insertions, 11 deletions

diff --git a/packages/main/esbuild.config.js b/packages/main/esbuild.config.js
index 7653078..a39534d 100644
--- a/packages/main/esbuild.config.js
+++ b/packages/main/esbuild.config.js
@@ -1,7 +1,5 @@
-// @ts-check
-
-const { node } = require('../../config/build-common');
-const { getConfig } = require('../../config/esbuild-config');
+import { node, fileURLToDirname } from '../../config/build-common.js';
+import { getConfig } from '../../config/esbuild-config.js';
 
 const externalPackages = ['electron'];
 
@@ -9,8 +7,8 @@ if (process.env.MODE !== 'development') {
   externalPackages.push('electron-devtools-installer');
 }
 
-module.exports = getConfig({
-  absWorkingDir: __dirname,
+export default getConfig({
+  absWorkingDir: fileURLToDirname(import.meta.url),
   entryPoints: [
     'src/index.ts',
   ],
diff --git a/packages/main/package.json b/packages/main/package.json
index c118d2b..99451bd 100644
--- a/packages/main/package.json
+++ b/packages/main/package.json
@@ -2,7 +2,7 @@
   "name": "@sophie/main",
   "version": "0.1.0",
   "private": true,
-  "main": "dist/index.cjs",
+  "type": "module",
   "types": "dist-types/index.d.ts",
   "scripts": {
     "typecheck": "tsc"
diff --git a/packages/main/src/devTools.ts b/packages/main/src/devTools.ts
index 6c25b3e..7c7c86a 100644
--- a/packages/main/src/devTools.ts
+++ b/packages/main/src/devTools.ts
@@ -27,14 +27,12 @@ import type { BrowserWindow } from 'electron';
  * because the mobx-state-tree devtools are currently unmaintained.
  */
 export async function installDevToolsExtensions(): Promise<void> {
-  const installerPackage = await import('electron-devtools-installer');
+  // Hack to lazily require a CJS module from an ES module transpiled into a CJS module.
   const {
     default: installExtension,
     REACT_DEVELOPER_TOOLS,
     REDUX_DEVTOOLS,
-  } = installerPackage.default instanceof Function
-      ? installerPackage
-      : installerPackage.default as unknown as typeof import('electron-devtools-installer');
+  } = require('electron-devtools-installer');
   await installExtension(
     [
       REACT_DEVELOPER_TOOLS,