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

Fix Cloudflare Wildcard Subdomain Not Resolving

You set up a wildcard DNS record in Cloudflare (e.g., *.example.com) expecting all s...

Remove Large Files from Git History

If your Git repository is bloated because a large file was committed and later removed, the file ...

Fix 'package.json Not Found' After Cloning a Repository

Symptom

You clone a repository from GitHub (or another remote), change into the directory...

How to Fix Bluetooth Device Pairing Issues in Windows 11

If your Bluetooth device won't pair with Windows 11, the problem often comes down to drivers,...

Fix Windows Update Error 0x80070002 by Resetting SoftwareDistribution Folder

Windows Update error 0x80070002 often appears when the system cannot find or access the update fi...

Fix Nginx 'Permission Denied' Upstream Errors

When Nginx logs permission denied while connecting to an upstream (e.g., a Unix sock...