.env.development.local -

.env.development.local is a dotenv-style environment file commonly used in JavaScript/Node and frontend projects (Create React App, Vite, Next.js, etc.) to store development-only environment variables that should override other development settings on a single machine. It fits into a conventional dotenv hierarchy where different files target different environments and scopes (e.g., .env, .env.development, .env.production, .env.local).

: This file has the highest priority among development-related files. It will overwrite values defined in .env.development .env.local Developer-Specific Config .env.development.local

"scope": "variable.other.env", "settings": "foreground": "#9CDCFE" It will overwrite values defined in

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. but applies your personal local overrides.

.env.development.local acts as your personal "scratchpad" for environment variables during the development phase. It allows you to:

# .env.development (Committed) VITE_API_URL=https://jsonplaceholder.typicode.com VITE_ENABLE_MOCKS=false