Checklists for software errors, setup, and tool workflows.

Python Virtual Environment Not Activating: Common Fixes

You run source venv/bin/activate (or venv\Scripts\activate on Windows) ...

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...

Cloudflare 522 Error: Server Response Time Troubleshooting

You're browsing a site and get a Cloudflare 522 error—'Connection timed out' or '...

Fix Nginx Upstream Connection Refused Behind Cloudflare

If you see upstream connection refused in your Nginx error logs while using Cloudfla...

Fix Discord Black Screen from Chrome Hardware Acceleration

Why Chrome Hardware Acceleration Causes Discord Black Screen

When Chrome uses hardware a...

How to Fix WiFi Connected but No Internet on Windows 11

You see the WiFi icon connected, but websites won't load, and apps report no internet. This i...