As you know this is imho a cool idea. I'm thinking, what hinders the barista in usecase 1 from using the received simkojn in the cash register? Isn't some sor

As you know this is imho a cool idea. I'm thinking, what hinders the barista in usecase 1 from using the received simkojn in the cash register? Isn't some sort of removal of cards from the list necessary? Maybe I'm missing something...