.env.development.local 〈HIGH-QUALITY〉

.env.development.local file is a specialized configuration file used in modern web development frameworks like Create React App

Conclusion:

Why? If you commit this file, you defeat the purpose of the .local suffix. You risk exposing secrets (API keys, database passwords) on GitHub/GitLab, and you force your local configuration onto your teammates. .env.development.local

Vite

Vite follows a similar pattern using dotenv. It loads .env.[mode].local for the current mode (e.g., development). However, note that Vite only exposes variables prefixed with VITE_. The file loading order is identical to CRA. When running in development mode , frameworks typically

This gives you:

# Emergency local overrides - do not share
API_GATEWAY=http://localhost:8999
MOCK_PAYMENTS=true
FORCE_LEGACY_FALLBACK=1
DEVELOPMENT_MODE_OVERRIDE=ok

When running in development mode, frameworks typically load files in this order (where the last file loaded or highest listed overrides previous ones): .env (Default values for all environments) .env.local (Local overrides for all environments) .env.development (Values specific to development) When running in development mode

Then in .vscode/tasks.json: