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

How to Fix Cloudflare 522 Error from Plugin Conflicts

If you're seeing a Cloudflare 522 error, it usually means the connection between Cloudflare a...

How to Fix Nginx 'Upstream Connection Refused' Error

When Nginx returns a 502 Bad Gateway with upstream connection refused in the error l...

Git Detached HEAD: Practical Checklist and Fixes

You see a message like 'You are in 'detached HEAD' state' when checking out a com...

Fix 'Permission Denied' When Running pip install --user

When you run pip install --user somepackage and get a Permission denied...

Fix Discord Black Screen from Chrome Hardware Acceleration

Why Chrome Hardware Acceleration Causes Discord Black Screen

When Chrome uses hardware a...