Checklists for software errors, setup, and tool workflows.

Git Push Rejected Non Fast Forward: Troubleshooting Checklist

If you see ! [rejected] main -> main (non-fast-forward) when running

Fix VSCode Git Authentication Failed: Reset Credentials

If you see a "Git authentication failed" error in Visual Studio Code, it usually means yo...

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

Symptom

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

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...

Python Requests: Setting Timeout for POST Requests

When your Python script makes a POST request to an external API or web service, a slow or unrespo...

How to Fix Nginx 502 Bad Gateway in Docker

If you're running Nginx as a reverse proxy inside Docker and seeing a 502 Bad Gateway error, ...