Checklists for software errors, setup, and tool workflows.

Fix 'git pull failed index.lock file exists' Error

When running git pull, you may see an error like:

fatal: Unable to create &#...

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...

Docker Container Exits Immediately on Mac: Fixes

You start a Docker container on your Mac, and it stops within seconds. The container exits immedi...

How to Use Chrome Task Manager to Find Memory Hogs

If your computer starts slowing down, Chrome's built-in Task Manager can help you find which ...

Cloudflare DNS Propagation Stuck: How to Fix

You updated a DNS record in Cloudflare hours or even days ago, but the change still isn't sho...

How to Fix Python Dependency Conflicts When Installing Packages

You run pip install some-package and get a wall of text about conflicting dependenci...