Got the WIP of the Vesta Free State up. Need to still mull over the history quite a bit so that's the most WIP part of it all. Otherwise its more or less the same as it was before.
I could see the free state taking advantage of the proxy economies/black markets that come as a result of how the major powers tend not to trade with each other, but will trade with minor powers.
You note I only say major/minor powers when referring to non-terran societies, this is intentional since a solar society generally is going to be capable of manufacturing a defensive fleet and being able to self-sustain, lest you become a martian vassal or jovian protectorate.
I like that there's room for more belter factions, since ceres (one of the more iconic asteroids) is still open, and it will be interesting to see what comes of ceres.