Checklists for software errors, setup, and tool workflows.

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How to Fix the Git index.lock File Exists Error

You're in the middle of a Git operation—commit, merge, or rebase—and Git stops with: fa...

Fix VS Code 'Cannot Save File: Permission Denied' on Mac
You're editing a file in VS Code on your Mac, hit save, and get: 'Failed to save:...

Using nvm to Switch Node Version for a Specific Package
You might find that a package fails to install or run because it requires a specific Node.js vers...

How to Free Up Disk Space for Docker: No Space Left on Device
When Docker throws a no space left on device error, it usually means your Docker sto...

Fix Chrome Black Screen on Mac: Hardware Acceleration Issue
You open Chrome on your Mac, and the screen goes black—or parts of the page are garbled. This oft...

Fix VSCode Git Auth Failed: Expired Token
You're working in Visual Studio Code, try to push or pull, and see an error like "Git: Au...

Checklists for software errors, setup, and tool workflows.

Latest checklists

How to Fix the Git index.lock File Exists Error

Fix VS Code 'Cannot Save File: Permission Denied' on Mac

Using nvm to Switch Node Version for a Specific Package

How to Free Up Disk Space for Docker: No Space Left on Device

Fix Chrome Black Screen on Mac: Hardware Acceleration Issue

Fix VSCode Git Auth Failed: Expired Token

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