I am surprised that we have not seen some sick setups shared on HN.
This is a fantastic article but I wish he would have included some wish list or constructive criticism, clearly there are areas of improvement!
But to discern an ask from his writings: At the end he mentions the complexities of working so many different purpose-specific tools— is this perhaps the next area of progress, tool integration and a cohesive experience?
The projects were necessitated because costs of medical-device regulatory barriers made hardware iterations economically infeasible to mass-manufacture. There were a few university faculties that would show up at community events to demonstrate DIY kits folks could put together with a friend.
If these projects are no longer available, send up a flag and someone will spend a few weekends to bring up more open-hardware options. One can't legally sell these as a medical-device in most places, but there is likely nothing stopping a low-power hobby "game control" kit. =3
It's discouraging when they haven't streamed for a while like NoHandsKen, though I'm surprised to not find any evidence of a couple streams 3-6 months ago.