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

Fix NET::ERR_CERT_AUTHORITY_INVALID in Chrome

When Chrome shows 'NET::ERR_CERT_AUTHORITY_INVALID', it means the browser cannot verify t...

How to Configure pnpm Store Path (and Fix Common Issues)

If you use pnpm, you may run into disk space warnings, permission errors, or duplicate packages. ...

Fix pnpm ERR! Cannot Find Module – Practical Steps

Cloudflare Wildcard Subdomain Troubleshooting Checklist

When you set up a wildcard DNS record (e.g., *.example.com) in Cloudflare, subdomain...

Fix VS Code Git Not Detecting Changes After .gitignore Update

After updating your .gitignore file, you might notice that VS Code's Git extensi...

Fixing Nginx Upstream Connection Refused on Port 443

You see "upstream connection refused" in your Nginx error log when proxying requests to p...