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

Git index.lock File Exists Even After Deleting: Fixes

You delete the .git/index.lock file, but Git still says it exists. This can happen d...

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...

Docker Compose Env Variable Not Available in Container: Fix

You define an environment variable in your docker-compose.yml file, but when you run...

Git Merge Conflict Auto Resolve Not Working: Common Fixes

You run git merge expecting conflicts to be resolved automatically, but instead you ...

Docker Compose Port Mapping: Fix Common Issues

You've defined a ports section in your docker-compose.yml, but the ...

How to Fix Git Push Rejected Non-Fast-Forward Error