Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

You have an Nginx container proxying requests to another container (like a PHP-FPM or Node app), ...

You're editing a file in VS Code on your Mac, hit save, and get: 'Failed to save:...

Git Detached HEAD vs Attached HEAD: What It Means and How to Fix
If you've seen the message "You are in 'detached HEAD' state" while using Git...

How to Fix Nginx Redirect Loop from HTTP to HTTPS
If you're seeing an infinite redirect loop when trying to force HTTPS in nginx, the browser u...

Fix Docker Compose Port Already Allocated for PostgreSQL
You run docker-compose up and see an error like "Error starting userland pro...

VSCode Integrated Terminal Not Showing: Fixes to Try
You open the integrated terminal in Visual Studio Code using Ctrl+` (or Cmd+`<...