Your .env.example is lying to you: catching config drift in TypeScript
typescript
dev.to
Your .env.example is probably lying to you right now. Someone added a variable three weeks ago, forgot the template, and nothing broke. No error, no warning, no failing test. The file just quietly stopped describing reality. You find out when a new joiner clones the repo, follows the README exactly, and loses an afternoon to a "works on my machine" that was a missing key the whole time. Nothing fails. That is precisely the problem. Boot validation is the easy half The usual advice