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

DNS Probe Finished NXDOMAIN: Troubleshooting Checklist

Seeing "DNS_PROBE_FINISHED_NXDOMAIN" in Chrome means the browser couldn't find the IP...

Fix Nginx 502 Bad Gateway with Docker Environment Variables

If you see a 502 Bad Gateway from nginx running in Docker, it usually means ngin...

Fix node-sass Build Failed: node-gyp Rebuild Error

If you see node-sass build failed with node-gyp rebuild in your termina...

Fix Cloudflare SSL Full Strict Redirect Loop

If you've enabled Cloudflare's SSL/TLS encryption mode to Full (Strict) ...

Fix Discord Black Screen from Chrome Hardware Acceleration

Why Chrome Hardware Acceleration Causes Discord Black Screen

When Chrome uses hardware a...

Git Detached HEAD: Practical Checklist and Fixes

You see a message like 'You are in 'detached HEAD' state' when checking out a com...