A while back I shared Commitea , my project to teach Git and GitHub in Spanish, with a repo of docs and an interactive visualizer. Since then I kept adding things — search, feedback widget, dark mode, a changelog page. But there was still a gap between "reading how something works" and "actually knowing how to do it." So I built the piece that closes that gap: challenges verified against your real GitHub account. What changed Instead of reading how a merge or a Pull Request...