Environment Configs Across Environments

Summary

Managing different configuration for local, staging and production across both your frontend and backend — so a config mistake doesn't mean your staging frontend talks to your production database.

• 1Set up distinct environment variable sets for local, staging and production on both apps.
• 2Practice promoting a change from staging to production deliberately, not accidentally.
• 3Validate required environment variables at startup on the backend, failing fast if any are missing.