This is a short update - projects not dead. Rev 5 has been built and is functional. Quick video here: https://www.instagram.com/p/CRMyKk9BBYB/

I made the git for the project public, and uploaded schematics for rev 6.

update 11/2/2022 I've now made the project on git not public. The reasons are: that I don't want people ordering these boards with all the issues, I'd like to sell a few of them first before people start ordering them, and I'm unsure exactly the level of opensource I want to be on.