Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If you're running npm install on a Linux machine and get a build failure for

You change a DNS record in Cloudflare, wait, and the old IP still resolves. This is a common frus...

You open the integrated terminal in Visual Studio Code using Ctrl+` (or Cmd+`<...

Fix VSCode Git Authentication Failed SSH Key Error
You try to push or pull in VSCode and get Git: authentication failed even though you...

Fix Docker Container Exits Immediately After Start
You run docker run myimage and the container stops almost instantly. This is a commo...

Git Push Rejected Non Fast Forward: Troubleshooting Checklist
If you see ! [rejected]        main -> main (non-fast-forward) when running