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

Fix Nginx Upstream Connection Refused Behind Cloudflare

If you see upstream connection refused in your Nginx error logs while using Cloudfla...

Fix pnpm ERR_PNPM_NO_OFFLINE_META: Step-by-Step Guide

You run pnpm install and see ERR_PNPM_NO_OFFLINE_META. This usually hap...

Fix Git Push Rejected Non Fast Forward Error

How to Change npm Directory to Avoid Permission Denied

If you've seen "EACCES: permission denied" when running npm install -g, ...

Fix Git 'index.lock' File Exists Error on Linux

When working with Git on Linux, you might see an error like: