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

Cloudflare Wildcard Subdomain CNAME Setup Guide

If you need to route all subdomains (e.g., *.example.com) to the same target, a wildcard CNAME re...

Fix Bluetooth Service Not Running in Windows 11

You open Bluetooth settings in Windows 11 and see the toggle is grayed out, or your Bluetooth dev...

Fix Chrome Memory Spikes When Watching Videos

You're watching a video in Chrome, and suddenly the system slows down, fans spin up, or tabs ...

Fix Nginx 502 Bad Gateway with Docker and PHP-FPM

You have a Docker setup with Nginx proxying to a PHP-FPM container, and you're getting a 502 ...

How to Allow Unrelated Histories in Git Merge

Docker Container Exits Immediately on Mac: Fixes

You start a Docker container on your Mac, and it stops within seconds. The container exits immedi...