Environment Variables in Production

Summary

Configuring secrets and settings for your live app safely — using your hosting platform's environment variable dashboard rather than committing any `.env` file to your repo.

• 1Set production environment variables through your hosting platform's dashboard, not in code.
• 2Confirm your app fails clearly at startup if a required variable is missing, rather than failing silently later.
• 3Learn how staging and production environments typically use different variable values for the same keys.