The problem
The menu on the TV is a picture, so changing one price means making a new picture and a trip with a USB stick.
How this page solves it
Everything on this page is loaded from one dontlosedata endpoint. Change the data in the dashboard and the page shows it right away. No rebuild.
This demo's data is read-only, so anything you change here lasts until you reload. In your own app, it's saved for good.