Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

You run git merge and get an error: fatal: refusing to merge unrelated histories...

Docker Nginx 502 Bad Gateway: Memory Limit Fix
You're running Nginx in Docker as a reverse proxy, and suddenly you see 502 Bad Gateway error...

Python Requests Timeout Not Working: Fixes & Checks
You set a timeout in requests.get(url, timeout=5), but the request hangs for minutes...

Fix VSCode Source Control Not Detecting Changes
You open the Source Control panel in Visual Studio Code, expecting to see your file changes, but ...

Fix VSCode Breakpoints Not Hitting in TypeScript
You set a breakpoint in a TypeScript file, run the debugger, and execution never pauses. This is ...

Fix pnpm ERR_PNPM_OUTDATED_LOCKFILE Lockfile Error
When running pnpm install or pnpm update, you may see:
ER...