: Remember that variables prefixed with NEXT_PUBLIC_ or REACT_APP_ will be accessible in the browser. Do not put highly sensitive server-side secrets in these specific public variables.
.env.development.local file is used to store local-specific environment variable overrides that only apply during the development phase. It is commonly found in frameworks like Create React App Core Purpose & Best Practices Local Overrides .env.development.local
.env : The standard prefix indicating an environment variables file.development : The mode. This file is only loaded when your application is running in development mode (e.g., npm start, vite, next dev)..local : The modifier indicating that this file contains local, machine-specific settings. It should never be committed to version control (Git).: Indicates that this file is machine-specific . It is intended to override other configurations just for your computer and should never be committed to version control. The Hierarchy: Who Wins? The Last Local Environment Browser Exposure : Remember
: Unlike standard .env files that might be shared, .env.development.local should never be checked into version control (Git). Loading Priority (Hierarchy) .env.development.local
