Checklists for software errors, setup, and tool workflows.

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Latest checklists

If you see the error fatal: refusing to merge unrelated histories when running

You try to write a file inside a running Docker container and get no space left on device

Fix VS Code Terminal Not Working After Update
After a VS Code update, the integrated terminal may fail to start, show a blank window, or displa...

Fix Git Stash Error: index.lock File Exists
You run git stash and see: fatal: Unable to create 'path/.git/index.lock&#...

Fix Nginx Upstream Connection Refused in Proxy Pass
When Nginx returns a 502 Bad Gateway or logs upstream connection refused

Cloudflare Wildcard Subdomain Cache Not Working: Fixes
If you use a wildcard DNS record like *.example.com proxied through Cloudflare, you ...