Build a TeenAstro computerized telescope goto controller

I am looking for someone to build two computerized telescope goto controller specifically for astronomical imaging. I have some ideas on components that the controller should include; however, I am open to any advice in making the project even better. The scope of my project is to build a controller capable of driving a telescope of more than 150mm in aperture.
One of theme should work on an old losmandy g8 the other on a losmandy/celestron g11.

I like the TeenAstro but I also open for an OnStep Kit.

https://groups.io/g/TeenAstro