Checklists for software errors, setup, and tool workflows.

Fix Nginx 'Permission Denied' Upstream Errors

When Nginx logs permission denied while connecting to an upstream (e.g., a Unix sock...

Fix 'Permission Denied' in VS Code Terminal on Mac

You're working in VS Code on a Mac, and when you try to run a command in the integrated termi...

Docker Pull Access Denied on Mac M1: Step-by-Step Fix

If you're running Docker on an Apple M1 Mac and see 'access denied' when pulling an i...

Docker Container Exits Immediately in Docker Compose

If your Docker container exits immediately after starting with docker compose up, it...

Fix PyCharm Virtual Environment Not Activating

When you open a terminal in PyCharm and see the base Python interpreter instead of your virtual e...

Fix Discord Black Screen from Chrome Hardware Acceleration

Why Chrome Hardware Acceleration Causes Discord Black Screen

When Chrome uses hardware a...