.env.development.local «TRUSTED»

This essay explores the purpose, importance, and best practices surrounding the .env.development.local file in modern software development.

Conclusion

You cannot change .env.production (it might be committed). Instead, you create .env.production.local. The system respects that you are in production mode, but applies your personal local overrides. .env.development.local

  • .env : The base file. Loaded in every situation.
  • [mode] : The environment name. Common modes include development, production, test, or staging.
  • [local] : An optional flag indicating this file is for your machine only (not committed).

Mode-Specific: Unlike .env.local, which might load in both development and production build modes, .env.development.local is strictly for when the application is running in "development" mode. Common Use Cases This essay explores the purpose, importance, and best