Problem: Changing code temporarily to support local development
Problem: Changing code temporarily to support local development.
The risk: Accidentally committing the change.
Solution: Read an environment variable to apply the change conditionally.
Hacky alternatives I've seen:
1. Uncommenting a chunk of code that's only useful for local dev purposes.
2. Renaming files to apply a dev-only alternative behavior.
3. Using a querystring that ships to production, which means a prod user could find it.
Instead, use a .env 😎