Undoing the last commit in Git allows you to correct mistakes, remove unwanted changes, or reorganize your commit history before sharing with the team. As the creator of CoreUI, a widely used open-source UI library, I’ve used git reset countless times across development workflows to fix commit mistakes and maintain clean project history. From my expertise, the most effective approach is using git reset with appropriate flags to control whether changes are preserved or discarded. This method provides flexible commit undoing with control over working directory and staging area states.