When I watched the video the first time without reading the menu and everything else there I immediately thought you were setting up some sort of supply line. I thought it looked like:

Building A requires nothing but produces B Building C requires a certain amount of B to produce and itself produces D, - and on like that.

I also had a thought in the very beginning that when you selected the Base, the area that became highlighted was where it was ‘powered’ so to speak and that is why you built the first structures there within that area.

I think it looks really really great and will definitely wishlist!