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

Fix VS Code Source Control Not Detecting Changes on Ubuntu

If you're using VS Code on Ubuntu and the Source Control panel shows no changes even after ed...

How to Stop Windows Explorer from Restarting

If Windows Explorer (explorer.exe) keeps restarting—your taskbar disappears and reappears, or you...

Fix Nginx Configuration Test Syntax Errors

When you run nginx -t and see syntax error, the nginx service will ...

Git Push Rejected Non Fast Forward: Troubleshooting Checklist

Python Virtual Environment Not Activating: Common Fixes

You run source venv/bin/activate (or venv\Scripts\activate on Windows) ...

Fixing Cloudflare 521 Error: Origin Unreachable

When you see Cloudflare error 521, it means your origin server is refusing the connection from Cl...