Checklists for software errors, setup, and tool workflows.

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Latest checklists

If you see a 521 error after setting up Cloudflare, it means your origin server refused the conne...

You're running the Windows 11 Installation Assistant, it downloads happily up to 99%, then si...

You're running npm run build and hit Error: EACCES: permission denied

Node.js Heap Out of Memory in Production: Practical Fixes
You're running a Node.js application in production when it crashes with FATAL ERROR: In...

Fix pnpm install ETIMEDOUT Errors: Network & Config Checks
When you run pnpm install and it fails with ETIMEDOUT, it usually means...

Fix VS Code Permission Denied When Not Admin
You try to save a file or install an extension in VS Code, and get a "permission denied" ...