# GitHub, in four sentences (only surface if the user asks)

- **A repository ("repo")** is just a folder of your project that GitHub keeps a
  safe, versioned copy of — every save is remembered, so you can always go back.
- **A commit** is one saved snapshot with a short note about what changed.
- **Pushing** sends your latest commits up to GitHub (the backup + the thing
  that triggers deploys).
- **Branches** are parallel copies; here they map to environments — `dev` is
  your workspace, `main` is what's live — so "push to main" means "make it live".

You never need to run Git commands yourself — just tell me "save my work" or
"put it live" and I'll do the right thing.