Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

You try to run a Git command and see fatal: Unable to create 'path/.git/index.lock'...

Fixing VSCode IntelliSense Not Working for Go
You open a Go project in VSCode, start typing, and get no autocompletions, no hover info, no erro...

Fix Windows 11 Setup Stuck at 99%
You're installing Windows 11 and the progress bar hangs at 99% for a long time. This is a kno...

Fix Python UnicodeDecodeError 'charmap' Codec
You're reading a file in Python and get:
UnicodeDecodeError: 'charmap' ...

Fix Cloudflare Wildcard Subdomain Origin Server Errors
You set up a wildcard DNS record in Cloudflare (e.g., *.example.com) pointing to you...

Fix Docker Nginx 502 Bad Gateway with MySQL
You have a Dockerized web app behind Nginx, and you're seeing a 502 Bad Gateway error. The ap...