"Everything lives in Git" - Git's powerful, scalable, and flexible version control forms the foundation for many of the other features that make the JAMstack work. But, Git can be confusing and intimidating, and mistakes are all too common -whether you are a newbie or you use it every day! Out of this frustration, Katie's site ohshitgit.com was born. And recently, Katie migrated it to the JAMstack. Today, she'll walk us through the migration process, and along the way dive deep into Git's underlying data structures to flesh out our mental model of how Git works, and help us avoid messes before they begin!