Checklists for software errors, setup, and tool workflows.

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Chrome Memory Use Too High on Mac? Here's How to Fix It

If your Mac slows down when Chrome is open, or you see high memory usage in Activity Monitor, you...

Fix Git 'index.lock' File Exists Error in SourceTree

If you use SourceTree and see an error message like fatal: Unable to create 'path/to/.g...

Fix Cloudflare DNS Propagation Not Happening for www
You updated DNS records for your www subdomain in Cloudflare, but hours (or days) later, the chan...

Fix npm run build Failure from Missing Env Variables
You run npm run build and get an error like Error: Missing required environmen...

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 VS Code 'Permission Denied' When Saving Files
You're editing a file in Visual Studio Code, hit Ctrl+S, and get an error: "Failed to sav...

Checklists for software errors, setup, and tool workflows.

Latest checklists

Chrome Memory Use Too High on Mac? Here's How to Fix It

Fix Git 'index.lock' File Exists Error in SourceTree

Fix Cloudflare DNS Propagation Not Happening for www

Fix npm run build Failure from Missing Env Variables

Fix Chrome Black Screen on Mac: Hardware Acceleration Issue

Fix VS Code 'Permission Denied' When Saving Files

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