[Puke]

so how does a drone mine work? no strategic movement, combat movement only, no drone supply use, ramming warhead?

Reminds me a little bit of the mines in Pax Imperia II.
This way, you really would use Point Defense as a mine sweeper. Devnull Mod has done that for a long time, but only by using regular mines and giving PD the "mine sweep" ability.

This sounds really cool. I assume its the same idea for sats? fighters with combat movement, but no strategic movement?

How about the homeworlds that are not duplicateable, but dry up in a hundred years? Special Homeworld facilities that produce huge resources, but also reduce planetary value, so they will dry up? You know that planetary value reduction stacks, so if you fill the planet with these facilities, it will be losing like 10 or 20% of its resource value every year?

you could work around that by puting the value reduction on the spaceport, or something - and disallowing "natural merchants" but then someone could halt the homeworld value reduction by scrapping their spaceport and building a new one on another planet in the system.