How many of you are developing (developed) a planetary engine?

Subj. :slight_smile:

Why? Because I am doing it also, and itโ€™s quite fun - a lot of ideas, a lot of imagination, a lot of hope and experience.

I have started this project about 2 weeks ago and I am doing it in my free time. You can follow my progress here, if you like :slight_smile:

My interest is what have you achieved, what were the difficulties, etc. It would be nice to share the experience.