The most common mistake is accidentally copying a real API key into the sample file. Always double-check before you git commit .
It is a template file that mirrors the structure of your .env file but contains placeholder values instead of real secrets. It is checked into version control to show other developers exactly which variables they need to define to get the project running. Why Use a .env.sample ? 1. Frictionless Onboarding .env.sample
Never put a production database URL as a "default" in your sample file. Automating the Process The most common mistake is accidentally copying a
Developers often add a variable to their local .env to solve a problem but forget to update the .env.sample . This breaks the build for everyone else. Make it a habit: Update one, update both. It is checked into version control to show