Checklists for software errors, setup, and tool workflows.

How to Push a Git Detached HEAD to Remote

You're working on a Git repository and realize you're in a 'detached HEAD' state....

Fix 'git pull failed index.lock file exists' Error

When running git pull, you may see an error like:

fatal: Unable to create &#...

Fix Nginx Redirect Loop After SSL Setup

You've set up SSL on your Nginx server, but now visitors get stuck in a redirect loop—HTTP→HT...

Fix VS Code Breakpoint Not Hit in Remote Development

You set a breakpoint in VS Code while working in a remote environment—SSH, container, or WSL—but ...