The controlling framework behind Bittle is OpenCat, which I've been developing for a while. You can read more stories from my posts on Hackster.io.
It's too much work for now ๐คท๐ปโโ๏ธ but you are welcome to discuss it with me on the forum or through email. Good thing is, I will keep the code compatible with future OpenCat models, and even your own DIY robots! Hopefully, the documentation will be completed during the processes.