Lightman's Currency Version

1.20.1-2.2.4.4

Is your feature request related to a problem?

I think when creating supermarkets its not realistic to pay directly to the shelf

Describe the solution you'd like

Main suggestion:
Adding a barcode system that gives items a barcode and a barcode scanner to check the prices and to make sale (only players with permission can make a sale), self checkout that players can pay and go automatically.

Not about the mod but can be good:
Alarm systems that detects items that has barcode and checks if paid if not an alarm sounds and emits redstone signal

Describe alternatives you've considered

ı looked to other currency mods, addons but there was nothing like that

Additional context

This is literally exactly what the Create 6.0 update does. I do have plans to see if I can make some form of compatibility patch so that you can pay directly from your wallet, but I've yet to actually do the research. Regardless this isn't something I plan on doing, doubly-so when this is something that's already been added by another mod.