.env.local.production |best| -

: The file .env.production (without .local ) is tracked by Git. Use it only for public configs, such as a public asset CDN URL or a Google Analytics tracking ID.

This works fine until you need to run a on your local machine.

As modern JavaScript frameworks have evolved, environment configuration has become highly granular. One of the most specific configuration files you will encounter is .env.local.production . .env.local.production

# .env.production (Committed to Git) NEXT_PUBLIC_API_URL=https://production-domain.com DATABASE_URL=postgresql://readonly_user@localhost/db Use code with caution.

If you create a file named .env.local.production , : The file

: Local overrides used strictly during production runs or builds.

: Specifies that the file is machine-specific. It is meant to exist only on a particular local machine or specific server, overriding the team-wide defaults. The Core Purpose of .env.local.production If you create a file named

# .env.example NEXT_PUBLIC_API_URL= DATABASE_SECRET= # Do not put real secrets here! Use code with caution. 3. Prefer Platform Dashboards for Serverless