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...

Nginx Upstream Connection Refused: Diagnosis and Fixes

When Nginx returns a 502 Bad Gateway or logs "upstream connection refused", it means Ngin...

Fix Windows 11 WiFi No Internet Due to Proxy Settings

If your Windows 11 laptop shows full WiFi bars but browsers say “No internet,” a common culprit i...

Fix VS Code Breakpoints Not Hitting in WSL

If you're debugging a project in WSL and VS Code breakpoints aren't being hit, you're...

Cloudflare 522 Error After Server Migration: Fixes That Work

If you've just migrated your website to a new server and now see a Cloudflare 522 error (conn...

Fix 'Git Remote Origin Already Exists' in VS Code

If you see “fatal: remote origin already exists” when trying to git remote add origin