I really like the idea of this mod, and have always felt there was something that just didn't quite sit right about the way skills are done in Starsector, and I think this may be the thing to fix it.
That said, after having played this a bit, I've decided to put this on the shelf. Its very new and obviously still needs some work.
One thing I can give as input that really put me off was the balancing between the Piracy and the Starfaring line:
The two are mutually exclusive, while having a lot of overlap. And this is where the problem lies: Piracy is just strait up better and probably just overtuned when compared to MOST skill trees. But when stacked up against the Starfaring line? Ouch man. Ouch.
The Starfarer line is TERRIBLE. It gives NO combat bonuses, and has worse exploration utility than Piracy, because most of the things it has can be gotten from hullmods and the like, while piracy has the very useful Ambush skill (which is EXTREMELY useful for exploration) AND most of the same stuff starfaring has AND combat bonuses. The only thing that Starfaring has of note is the continuous repairs skill, which is a great utility skill for a combat skill tree... but not an exploration skill tree.
Also, you're blocked from taking both... This is unnecessary because taking both of them... or maybe just taking the starfaring line is kind of a self nerf, so there is no reason to actually stop people taking both, except to inconvenience people who like the exploration elements of this game.
So this is what my solution would be:
Make a new skill tree called "smuggling" (given how prominent that is in this game, it makes total sense there would be a skill tree for it) and strip out some of the elements from piracy and starfaring and add them to smuggling: give starfaring some combat utility, while making piracy less of an auto take.
Also, please add an option to control the spawn rate of the executive officers to the Lunalib mod menu. I realize having a high spawn rate is probably really useful for testing, but I trip over like 5 executive officers everywhere I go.
High hopes for this mod.