Checklists for software errors, setup, and tool workflows.

Fix Discord Black Screen from Chrome Hardware Acceleration

Why Chrome Hardware Acceleration Causes Discord Black Screen

When Chrome uses hardware a...

Fix Git 'index.lock' Error in VS Code

If you see the error 'fatal: Unable to create 'path/.git/index.lock': File exists'...

VSCode Breakpoint Not Hit Due to Source Maps: Fix

You set a breakpoint in your TypeScript or React source file, start debugging, and the breakpoint...

Fixing Docker Bind Mount Permission Denied Errors

When you run a Docker container with a bind mount and see Permission denied, it usua...

Fix Nginx 502 Bad Gateway: Upstream Connection Refused

If you're seeing a 502 Bad Gateway error with "upstream connection refused" in your N...

Fix Windows Security App Missing from Start Menu

You open the Start menu, type “Windows Security,” but nothing appears. The app may have been unre...