syncrow-web/lib/main_staging.dart

import 'package:firebase_core/firebase_core.dart';
import 'package:flutter/material.dart';
import 'package:flutter_dotenv/flutter_dotenv.dart';
import 'package:syncrow_web/firebase_options.dart';
import 'package:syncrow_web/services/locator.dart';
import 'package:syncrow_web/syncrow_app.dart';

Future<void> main() async {
  try {
    const environment = String.fromEnvironment(
      'FLAVOR',
      defaultValue: 'staging',
    );
    await dotenv.load(fileName: '.env.$environment');
    WidgetsFlutterBinding.ensureInitialized();
    await Firebase.initializeApp(
      options: DefaultFirebaseOptions(
        databaseUrl: dotenv.env['RTDB_URL']!,
      ),
    );
    initialSetup();
  } catch (_) {}
  runApp(const SyncrowApp());
}