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

Git Merge Conflict: Keep Both Files Instead of One

When you run git merge and get a conflict, Git stops and marks the conflicting files...

Fix 'git remote origin already exists' Error in GitLab

Docker Container Exits Immediately: Diagnosing Out of Memory

You start a Docker container and it exits within seconds. The logs show nothing obvious, or they ...

How to Debug Docker Compose Environment Variables

When environment variables don't show up inside a container, the application often fails sile...

Fixing Cloudflare 521 Error After Server Restart

You restart your server, wait for it to come back up, then visit your site—only to see a Cloudfla...

Windows 10 Taskbar Icons Not Responding: Practical Fixes

If your Windows 10 taskbar icons stop responding—clicking does nothing, right-click menus don'...