Software comparisons, alternatives, and tool decision notes.

Fix Nginx 502 Bad Gateway with Docker Environment Variables

If you see a 502 Bad Gateway from nginx running in Docker, it usually means ngin...

Fix 'docker network not found' Error on Mac

If you're on a Mac and Docker returns network not found when you try to run or i...

Fix NET::ERR_CERT_AUTHORITY_INVALID in Chrome Safe Mode

When you see NET::ERR_CERT_AUTHORITY_INVALID in Chrome while running in Safe Mod...

Fix 'git pull failed index.lock file exists' Error

When running git pull, you may see an error like:

fatal: Unable to create &#...

Fix Docker 'No Space Left on Device' Volume Error

When Docker reports 'no space left on device' for a volume, the symptom is often a contai...

Fixing Python Dependency Conflicts with Incompatible Versions

You're working on a Python project, and after installing a new package, you get errors like <...