Checklists for software errors, setup, and tool workflows.

Python Requests: Fixing Connection Timeout with Proxies

You're using the Python requests library with a proxy, and you're seeing a <...

Fixing NGINX Upstream Connection Refused SSL Errors

When NGINX logs upstream connection refused for an SSL backend, it usually means the...

How to Recover from Detached HEAD in Git

You're working in a Git repository and suddenly see a message like 'You are in 'detac...

Fix 'Python Virtual Environment Activate Command Not Found'

When you try to activate a Python virtual environment with source venv/bin/activate ...

Fix npm ERR! enoent ENOENT: package.json Not Found in node_modules

You run npm install or npm start and get something like:

...