Checklists for software errors, setup, and tool workflows.

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Latest checklists

You run git stash and see: fatal: Unable to create 'path/.git/index.lock&#...

Fix 'pip install externally managed environment' Error
If you're seeing pip install fail with a message about an externally managed env...

Git Merge Conflict Resolution Tool Setup Guide
When you encounter a merge conflict in Git, the default conflict markers (<<<<<<...

Fix VS Code Terminal Not Opening on Mac
You open VS Code, press Ctrl+` or click the Terminal panel, and nothing happens. The...

Docker Compose: Fix 'Port Already in Use on Host' Error
When you run docker compose up and see an error like port is already allocated...

How to Fix Git index.lock File Exists Error on Mac
If you're working with Git on a Mac and see the error fatal: Unable to create '/pat...