To use react-native-dotenv with different .env files in your web development or mobile project, you can set up environment-specific files like .env.dev, .env.prod, etc. Then, configure Babel with a plugin like module:react-native-dotenv and pass the correct file path using the envFile option. Finally, run your project with a script that points to the desired environment file.

✅ It helps keep secrets organized and your app environment-specific!