Checklists for software errors, setup, and tool workflows.

Fix Nginx 502 Bad Gateway with Docker Environment Variables

If you see a 502 Bad Gateway from nginx running in Docker, it usually means ngin...

Fix VSCode IntelliSense Not Working with TypeScript

You open a TypeScript file in VSCode, start typing, and get no autocomplete, no hover info, no er...

Fix Windows Defender Blocked by Third-Party Antivirus

You open Windows Security and see a yellow warning: "Real-time protection is off. Your device...

Docker Container Exits Immediately: No Error, Common Fixes

You run docker run and the container starts, then exits within a second. No error me...

Docker Compose Environment Variable Not Working: Fixes

You define a variable in a .env file or directly in docker-compose.yml, but your container sees n...

Fix Git index.lock File Exists Permission Denied Error

You're in the middle of a Git operation and suddenly you see:

fatal: Unable to ...