Accounting system for restaurant

I envision a web and mobile app integrated with a restaurant's accounting system. Customers can scan a QR code at their table to access the menu, place orders, and add personal notes. Upon selection, they can pay through their phone by scanning their bank card or opt for cash payment. Orders are instantly transmitted to the kitchen, and the accounting system on the restaurant's device confirms the payment. The system provides estimated preparation times and notifies the kitchen in case of any delays, ensuring efficient order management.