In modern software development, applications often need different settings depending on where they are running (e.g., your laptop vs. a live server). The .env.development file allows you to define variables like local database URLs, API keys for testing, or debug flags that should only be active while you are coding. Why use it?
TypeScript developers are adopting tools like t3-env or zod to parse environment variables. Example: .env.development
Check the file location. The .env.development file must be in your project's root directory (where you run the command). Also, verify you have restarted the server. In modern software development