IANAL, but I'm fairly certain that listed price has to match the actual charged price at checkout or the customer gets an award of the difference multiplied by n (check your local laws). ☝🏼

Sounds like the perfect thing, when perfected, to keep people away from bigger stores¹. Just go in and discreetly change tag prices to make people think prices went up so much that everything there is unaffordable.

¹ as long as there are actual alternatives people can go to.

Don't think I've ever seen an IR one in the wild, I think most here are RF or Bluetooth. Pretty cool though, they seem like really neat little displays!

Would be cool if the db auto updated when the tag changes.

be aware that this is slop-coded: it lists cursor agent as a contributor, and the other three contributors who seem to be real humans all have gen-ai-based projects listed on their profiles