1 files changed, 1 insertions, 0 deletions

diff --git a/config/getEsbuildConfig.js b/config/getEsbuildConfig.js
index 930f19f..9cef588 100644
--- a/config/getEsbuildConfig.js
+++ b/config/getEsbuildConfig.js
@@ -27,6 +27,7 @@ export default function getEsbuildConfig(config, extraMetaEnvVars) {
     ...config,
     sourcemap: isDevelopment ? config.sourcemap || true : false,
     define: {
+      __DEV__: JSON.stringify(isDevelopment), // For mobx
       'process.env.NODE_ENV': modeString,
       'process.env.MODE': modeString,
       'import.meta.env': JSON.stringify({