Something I've wanted for a while is an option to have two different physical keyboards connected to the one machine, with different keymaps. In my particular case, most of the time I want to type in English, but I also sometimes wish to type in Hebrew. I find typing on my keyboard with English keycaps very clunky, especially when trying to add vowel pointing to letters.

There are solutions out there, but they all amount to hacks; what I think I really want is for the second keyboard to not have a keymap at all, but instead to transmit unicode code points, but there isn't a standard way to do that.

Anyway, this project looks cool: I'd really like to buy a hackable keyboard that lets me work on customisation without having to deal with everything else (especially building it from components.)