This is a great way to start a business.
You can use a softare to provide for restaurants and many others type of stores menus, QRCode, and even Delivery System. Because Pandemia people prefer to use their own cellphone to see the menu and choose the product or food. You can have your own Agency with no limit of stores and charge companies as much as you want. To know more about the software, just access this website: https://bit.ly/storeqrcode
By the way, you can use this website in differents countries and currencies.