We only do dine-in. What do I need to set up on day one?

Four things. Add your tables under Settings → Tables & QR ordering, then design and download the QR print pack so each table has its code. Set your hours under Settings → Working hours. Link WhatsApp under Settings → WhatsApp and pick a managers group, so every table order lands as a ticket; table orders never dispatch a rider, so you can leave the riders group empty. Then decide whether you want the POS: with it you get tabs with rounds, split bills, a kitchen screen and a service charge on tables. Scan one of your own codes and order to see what a guest sees. The Tables, tabs and the kitchen screen tab in the docs has the full guide.