The paper is already wrong
QR menu

Problem
Paper menus are dirty, outdated, and expensive to reprint every time a price changes.
What you sell
Sticker on the table. Phone opens the menu with photos and prices. Owner edits a sheet. The bot and the page stay in sync.
Week one
Type the current paper menu exactly. Don’t redesign the food. Print QR. Test at one table.
Money
Setup 120–350. 15–30 per month if they don’t want to touch the sheet. Bundle with Replies at 350–550.
First message
Your paper menu is already wrong. I put it behind a QR this week. You change a price in a sheet. 200 to set up.
Trap
Do not build an app. A page and a sheet is the product.