Checklists for software errors, setup, and tool workflows.

Fix Nginx Permission Denied for Static Files

Common Causes

When Nginx returns a 403 Forbidden or 'permission denied' error for...

Fix Cloudflare Wildcard Subdomain Not Working

If you've set up a wildcard DNS record in Cloudflare (e.g., *.example.com) but s...

Nginx Upstream Connection Refused: Diagnosis and Fixes

When Nginx returns a 502 Bad Gateway or logs "upstream connection refused", it means Ngin...

Handling Missing Peer Dependencies in pnpm Install

When you run pnpm install and see warnings about missing peer dependencies, your pro...

How to Resolve Windows Update Error 0x80070005

Error 0x80070005 in Windows Update usually means a permissions problem. You might see it when Win...

Docker Network Not Found After Container Restart: Fixes

You restart a Docker container and get an error like network <name> not found....