Checklists for software errors, setup, and tool workflows.

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Prevent Git Index Lock File Creation: Practical Fixes

If you see fatal: Unable to create 'path/to/.git/index.lock': File exists., ...

Fix Cloudflare Wildcard Subdomain DNS Propagation Delay

You set up a wildcard DNS record (e.g., *.example.com) in Cloudflare, but new subdom...

Fix Nginx Configuration Test Failure for Upstream Directive

When you run nginx -t and get an error involving the upstream directive...

Docker Container Exits Immediately on Mac: Fixes

You start a Docker container on your Mac, and it stops within seconds. The container exits immedi...

Fix npm ENOENT package.json Not Found Due to Wrong Directory

You run npm install or npm start and get an error like ENOENT: no...

Enable Docker Desktop to Start Automatically on Windows 11
If you use Docker Desktop daily, having it start automatically when you boot Windows 11 saves tim...