Two copies, one truth

Everything so far lived only on your laptop. Today we add a second copy of the repository on a server — the remote. GitHub is simply a website that hosts remotes, plus a social layer on top.

The practice terminal below grows a panel showing two worlds: 💻 your laptop and ☁️ GitHub. They are two full copies of the same repo, and they only talk when you tell them to.

Three verbs cover everything

• clone — copy the whole repo down, once
• push — send my new commits up
• pull — bring their new commits down