Checklists for software errors, setup, and tool workflows.

Fix Nginx Permission Denied for SSL Certificate Files

When nginx refuses to start or reload with a "permission denied" error related to an SSL ...

Fix Docker Nginx 502 Bad Gateway with MySQL

You have a Dockerized web app behind Nginx, and you're seeing a 502 Bad Gateway error. The ap...

Bluetooth Troubleshooting Checklist for Windows 11

Bluetooth on Windows 11 can be unreliable. If your device won't pair, keeps dropping, or does...

Fix Windows 11 Installation Assistant Stuck at 99% Registry

If the Windows 11 Installation Assistant gets stuck at 99% while processing registry entries, you...

Fix VS Code Source Control Not Detecting Changes in Subfolder

You open VS Code, see changes in the root folder, but the Source Control panel shows nothing for ...

Fix Git index.lock File Exists Permission Denied Error

You're in the middle of a Git operation and suddenly you see:

fatal: Unable to ...