I built a new software for it based on an esp32 instead of a Raspberry Pi, fully offline. It's not the fastest due to the e-paper screen but reliable and idiot safe to use.
Discussion
cool project. dont know if i got the time to build it, but i bookmarked it. do you sell this lightning atm`s? i could help print the cases because i got 4 printers. just an info.
Not my main objective to sell them, but if somebody was interested I would be ready to build them for 500k sats + Shipping (upfront) from EU. Not fast tho would probably take ~1 month till shipping.
Also have 3d printers here so don't really need to outsource printing yet :D