Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

You restart your server, wait for it to come back up, then visit your site—only to see a Cloudfla...

You set environment variables in a .env file next to your docker-compose.yml

Fix Docker Compose Environment Variable Missing Errors
You run docker-compose up and see errors like WARNING: The VARIABLE_NAME varia...

Fix Nginx Configuration Test Failure After Adding Proxy Pass
You add a proxy_pass directive to an Nginx server block, run nginx -t, ...

Git Merge Conflict: Keep Both Files Instead of One
When you run git merge and get a conflict, Git stops and marks the conflicting files...

Fix Node.js Heap Out of Memory When Loading Modules
If you see FATAL ERROR: Ineffective mark-compacts near heap limit Allocation failed - JavaS...