Half past eleven.
The duty manager checks the menu schedule: the brunch version is live on all codes until two, the bar snacks version takes over on the terrace at the same time, and dinner switches on everywhere at five.
A table of four scans the code on table nine and gets a two-second page with today's brunch, no app, no download.
One diner taps the filter for gluten and the list shrinks to what the kitchen has tagged, with a line asking her to tell staff about any allergy.
They order from their phones: the basket is tied to table nine, the ticket appears on the kitchen screen with the table number, and each item moves from received to preparing to served as the kitchen taps it.