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

How to Rebuild Taskbar Icon Cache in Windows 10

If your Windows 10 taskbar icons appear blank, wrong, or missing, the icon cache may be corrupted...

How to Fix Git Detached HEAD State and Undo Changes

You run git status and see something like "HEAD detached at abc123". This ha...

How to Fix Nginx 502 Bad Gateway in Docker Compose

If you're running an application with Docker Compose and Nginx as a reverse proxy, a 502 Bad ...

Fix Nginx Redirect Loop: Permanent Solutions

You're trying to reach a site, and the browser keeps bouncing between two URLs until it gives...

Handling Special Characters in Docker Compose Environment Variables