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

Cloudflare DNS Propagation Time: What to Expect and How to Check

After changing DNS records on Cloudflare, you might wonder how long it takes for the changes to t...

Docker Desktop Engine Stopped on Mac M1: Fixes That Work

On Apple Silicon Macs (M1, M2, M3), Docker Desktop sometimes shows the error “Docker Desktop engi...

Fix VSCode Git Auth Failed: Expired Token

You're working in Visual Studio Code, try to push or pull, and see an error like "Git: Au...

Fix Git 'index.lock file exists' Error

If you see fatal: Unable to create 'path/.git/index.lock': File exists. when...

Git Push Rejected Non Fast Forward: Troubleshooting Checklist