This is a dactyl like keyboard where the model is generated in c++ (really didn't want to learn Clojure) and has a feel much more similar to the Kinesis Advantage 2. I built a dactyl manuform a few years ago because I wanted a split version of my ka2 with more powerful firmware and have finally made good on that goal. I think a mashup of the dactyl manuform would be ideal but I will have to save that for the next project.
The source can be found here
https://github.com/mjohns/dactyl-cc.
There are additional images here
https://imgur.com/a/jBbUXNx