diff --git a/epicshop/post-set-playground.js b/epicshop/post-set-playground.js
new file mode 100644
index 0000000..3655369
--- /dev/null
+++ b/epicshop/post-set-playground.js
@@ -0,0 +1,7 @@
+import fs from 'node:fs'
+import path from 'node:path'
+
+fs.writeFileSync(
+	path.join(process.env.EPICSHOP_PLAYGROUND_DEST_DIR, 'tsconfig.json'),
+	JSON.stringify({ extends: '../tsconfig' }, null, 2),
+)