Save to GitHub with gh

0. Check login

gh auth status

If it shows Logged in to github.com account <id>, go to step 1. Otherwise:

gh auth login

Answers: GitHub.com → HTTPS → Yes (let gh handle git auth) → Login with a web browser. Copy the 8-character code from the terminal into the browser. This one login also makes git push work without a password from now on.

If gh itself is missing: Mac uses the macOS .pkg from https://cli.github.com, Windows runs winget install GitHub.cli in PowerShell. Open a new terminal afterwards.

1. First upload (no repo yet)