Checklists for software errors, setup, and tool workflows.

How to Merge a Git Detached HEAD Back to Master

If you see a message like 'You are in 'detached HEAD' state' after checking out a...

Docker Container Exits Immediately in Docker Compose

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

Docker Network Not Found After Container Restart: Fixes

You restart a Docker container and get an error like network <name> not found....

Fix Cloudflare Wildcard Subdomain Not Resolving

You set up a wildcard DNS record in Cloudflare (e.g., *.example.com) expecting all s...

Fix Virtual Environment Not Activating in Terminal

Why Your Virtual Environment Won't Activate

You open a terminal, navigate to your pro...

Taskbar Icons Missing But Taskbar Visible: Fixes

You see the taskbar at the bottom of your screen, but the icons—like the Start button, search bar...