Knowledge base for software setup, errors, and daily tool work.

Fix Nginx 502 Bad Gateway on Docker Ubuntu

Fix 'Python' Command Not Found After Reinstall on Windows

You reinstalled Python on Windows, but when you type python in Command Prompt, you g...

Chrome Certificate Error: Not Secure Site Workaround

You're trying to reach a site and Chrome shows a full-page warning: “Your connection is not p...

Fix npm run build Failed Due to Missing Dependencies

When you run npm run build and it fails with errors about missing dependencies, the ...

How to Merge a Git Detached HEAD Back to Master

If you see a message like 'You are in 'detached HEAD' state' after checking out a...

Docker Container Exits Immediately with Volume Mount – Fixes

You start a Docker container with a volume mount, and it exits immediately – no error, or just a ...