One sticker on the table swaps between breakfast, lunch and dessert menus by the hour. No reprints when prices shift.
Hour-of-day slots do the work: 08:00–12:00 serves the breakfast PDF, 12:00–16:00 the lunch combos, 16:00–22:00 the dessert and evening-class menu. Slots are evaluated in UTC, so set the hours against your own offset. A price edit in the EQR panel is live for the next scan; the printed sticker never changes.
Free tier includes 1 standard QR code. Upgrade to the paid Eternal tier for blockchain permanence and the recovery key.