Machines get pairing codes. People just log in — tap your face instead →
Setting up a kiosk or tablet? A signed-in admin cuts the code — Opening day → The doors, or HQ → The glass on the mothership. Type it here and the screen stays paired until it's revoked.
A provider after their own page needs no code at all — the desk taps their face on The Book → the key rack and they scan it with their phone.