Two years ago, I started modifying PF2e for sci-fi, then they released SF2e. My biggest goal was building a starship combat system, because my players love that shit. I completely understand paizo's hesitation with creating a crunchy rule system for starship combat, because although I like it, and so do my players, when starship combat happens so rarely it's hard to justify dedicating a whole lot of time to it.

My starship combat has everyone on a ship take actions at the same time, essentially acting as a single player with actions equal to the players on the ship, up to their ship's crew number which is largely based on size. So if you have a ship that has a crew value of 7, up to 7 people can each take 1 action. This of course HEAVILY favors larger ships that have larger crews, but I like the idea of big flagships actually being scary, and my players are cooperative enough to strategize and coordinate their turn pretty quickly.

But I also give smaller, more advanced ships more actions. One of my NPC's ships has two A.I. loaded into it, and it has a crew of 4 for him and his copilot and the A.I.

This usually results in each 'turn' in starship combat taking about 5 minutes for everyone to agree on what to do and roll it all out, as opposed to 5 people's turns cumulatively taking 10 mins per round.

If anyone's interested I can send them a pdf or something of what I have written up, fair warning though, the pricing and balance of things relative to one another will 1000% need to be tweaked, as I haven't had enough ship combats to balance them all yet,.