Checklists for software errors, setup, and tool workflows.

Why Cloudflare DNS Changes Aren't Propagating

You updated a DNS record in Cloudflare but the change isn't showing up. Visitors still see th...

Fix Docker Nginx 502 Bad Gateway with MySQL

You have a Dockerized web app behind Nginx, and you're seeing a 502 Bad Gateway error. The ap...

Fix VS Code Source Control Not Detecting Changes After Branch Switch

After switching branches in Git, VS Code's Source Control view sometimes stops showing change...

Fix 'package.json Not Found' After Cloning a Repository

Symptom

You clone a repository from GitHub (or another remote), change into the directory...

Docker Desktop Engine Stopped After Update: Fixes

After a Docker Desktop update, you may see the engine fail to start. The UI shows a red status ba...

How to Fix a Detached HEAD with Git Reset --hard

You're working in Git, and suddenly you see a warning: You are in 'detached HEAD...