Video demo here You can add N clients, and then add N invoices for a client with N line items (each with a price). Super simple PDF generated that you can email to clients. Keep try of which ones are paid, etc.
Routing, sql, migrations, and WASM this framework makes building modern web and mobile ez. No javascript. No typescript. No react. No react-native. It's very easy to define your postgres tables, routes, and templates that are shared by the frontend and backend