Knowledge base for software setup, errors, and daily tool work.

Fixing Cloudflare Wildcard Subdomain Permissions Denied Errors

You set up a wildcard DNS record in Cloudflare, but requests to subdomains return a permissions d...

Fixing Node Sass Build Failures on Linux

How to Downgrade Node.js for Package Compatibility

You install a package and get errors like requires Node.js >= 16, but you have 18...

How to Fix 'Permission Denied' When Saving Files in VS Code

You're editing a file in VS Code, hit save, and get a 'permission denied' error. This...

VSCode Breakpoint Not Hit Due to Source Maps: Fix

You set a breakpoint in your TypeScript or React source file, start debugging, and the breakpoint...

Fix Nginx Upstream Connection Refused & Upstream Not Found

When you see upstream connection refused or upstream not found in your ...