The Slowest Git Commit in the World
Ryan gets inside Git and shows how you can manually create a commit in Git. But you definitely shouldn't.
More you should learn about Git:
Git Crit: Ryan Critiques Andrew's Use of Git
CraftQuest on Call: Andrew learns Git, Information on Docker, Handling Errors
Setting a Custom Git Default Branch Name
Change Default Branch in Git Using Custom Templates
Git Branch Naming Rules and Conventions
Changing a Commit Message with git-amend
Get Changed Files in Time Range with Git Diff
List Changed Files Between Git Branches