Although the project is new here on Hackaday.io, it has already been going on for a while. We have several build episodes on YouTube, but in our most recent video we integrate the full system and test it after first having assembled and tested the electronics.
Everything is open source, and the files can be found below. However, we do not recommend anyone to attempt to rebuild the project in its current state. The electronics especially require a big revision (version 2 will be started later this fall).
(work in progress) Firmware can be found on: