Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If you're on a modern Linux distribution (like Debian 12, Ubuntu 23.04+, Fedora, or Arch) and...

You installed an SSL certificate, and now your site redirects in a loop. The browser shows 'E...

You open a TypeScript file in VSCode, start typing, and get no autocomplete, no hover info, no er...

If you see ! [rejected] and non-fast-forward when running git pus...

How to Install Python Packages Without Permission Denied Errors
You try to install a Python package with pip install somepackage and get a Per...

Fix VSCode Breakpoints Not Hit in launch.json
You set a breakpoint in Visual Studio Code, start debugging with a launch.json confi...