Unfortunately on the hardware side I haven't done more than ordering a LCD and trying out several switches, and on the software side I'm not beyond POC software

Unfortunately on the hardware side I haven't done more than ordering a LCD and trying out several switches, and on the software side I'm not beyond POC software. I'm still not sure what kind of interface i want. Currently I think it should be RPL alike, but i see some UX issues i'd like to solve sometime. Sorry, no link.