Register tills, customer displays, kitchen screens, printers, scanners, and tablets per branch. Customer displays share the branch display token and mark online when the public screen polls; stale devices go offline on a schedule.
Send real receipt emails from the customer display and sale page, store branch promo content for the idle screen, and fold selected tips into totals.
Token-gated full-screen customer view shows order, payment QR, tips, signature, receipt, and promo phases while the till keeps operator UI.