Surprised to see docker there after the rugpull they did some time ago.

Wine works for a lot of software you could always try running your precious software on linux before jumping straight onto Mac

Assuming that the Norwegian system is in anyway similar to the Finnish system I use, they just print the system id and the n:th of you on a piece of receipt while the system just checks that no similar register/customer id’s have passed.

We tested this with friends where multiple friends bought stuff from the same register, but exited using only a single one and they were usable afterwards, but only once per.