Git Emergency: How to Completely Remove Committed Files from Remote Repository History

Accidentally committed and pushed a sensitive or unnecessary file (like config files, secret keys, or node_modules) to your remote repository? Don't panic! This tutorial provides step-by-step instructions for two scenarios: simply untracking a file from future commits, and completely erasing it from your Git history to prevent data leaks. This guide by wiki.lib00.com includes clear code examples and important team collaboration tips.