Have a look at the excellent ship and station designs, and the even more magnificent exhaust plumes, in @sadfrontier's latest video "OPERATION POKER NIGHT: Departure"
https://t.co/k8jldQDDNj
Lots of work on plant composition. Metabolism, size, soil/water preferences, all derive from specific organs now, and there's a "tech/evolution tree" of sorts for each slot, going from simple to specialized types. Here's some UI panels that try to summarize all this new info:
@SofaMods Sprocket is a bit like this for (early-mid 20th century) tanks. Has you sculpt the hull with a 3D modelling tool, design the transmission, set gear ratios etc