diff --git a/scripts/setup_fork.sh b/scripts/setup_fork.sh
new file mode 100644
index 0000000..1de63df
--- /dev/null
+++ b/scripts/setup_fork.sh
@@ -0,0 +1,16 @@
+constants="const String contactEmail = '';
+const String iapServerUrl = '';
+const String issuesReportUrl = 'https://github.com/vodemn/m3_lightmeter/issues/new/choose';
+const String sourceCodeUrl = 'https://github.com/vodemn/m3_lightmeter/';"
+
+firebase_options="// ignore_for_file: type=lint
+import 'package:firebase_core/firebase_core.dart' show FirebaseOptions;
+
+class DefaultFirebaseOptions {
+  static FirebaseOptions get currentPlatform =>
+      FirebaseOptions(apiKey: '', appId: '', messagingSenderId: '', projectId: '');
+}"
+
+echo "$constants" > "lib/constants.dart"
+echo "$firebase_options" > "lib/firebase_options.dart"
+sh .github/scripts/stub_iap.sh