This post reminds me of the beauty of open source. Well done build and a great project summary!

This is really impressive! I considered buying a big harmonic drive mount for my scope, but the cost is really prohibitive.

I have experienced the pain of getting ekos/kstars/indi tools to work well on my personal scope. If you want to try driving indi devices via python I have some python code (it's not super polished, but it does enough for my needs): https://github.com/dahlend/contindi

I'm most impressed with being able to order the CNC'ed metal parts. I'm just a novice cad designer and I'd love to learn that capability.