I create PROD environment in Github. I add Environment secrets as below. I will fetch these keys with String.fromEnvironment. class _HomeState extends State<Home> { @override Widget build(BuildContext context) { const supabaseUrl = String.fromEnvironment(‘envkey_SUPABASE_URL’, defaultValue: “check1”); const supabaseAnonKey = String.fromEnvironment(‘envkey_SUPABASE_ANONKEY’, defaultValue: “check2”); return const Scaffold( body: Row( children: [ Column( children: [ Text(“check”), Text(supabaseUrl), Text(supabaseAnonKey), ], […]