Does hair actually grow currently?
I believe it does, at least for dwarves and other sapients.
Yep. Check the
dwarf raws and look for TISSUE_LAYER_APPEARANCE_MODIFIER:LENGTH.
How will extracts like wool, antlers etc. handled? Will this stuff and milking work under the hood of one framework? If so how would we set up the raws for the extraction of a wool? preferable without needing a bucket? Also can we get extracts into vials instead of Buckets where it makes sense? Is it possible to to milk 2 different liquids from one animal like a actual animal-milk and a poison?
If you're talking about the upcoming release, there's no unified framework per se, just milking of arbitrary liquids into a bucket. Wool extraction would have to work via
the system I just described or one like it. Buckets only, and only one milkable material per creature.
If you mean later on, this
dev item# Bloat58, MORE LIVESTOCK, (Future): Livestock. Use of feathers. Use of wool. Various eggs and nests. Dwarves should hate eating plants all the time.
implies that all those animal products will be under one system as much as possible.
That reminds me of another question I had. What's the point of all the various intestines, spleens, lungs, and other new bits that come from butchering animals? Are there any uses for them in game, or are they just fodder for homebrewed alchemist's workshop reactions?
atm, i don't think there's any use for them, they're just like 'chunks', in the future of course intestines at least will be used for sausage, and the other bits will probably be able to be ground up for offal to feed animals and fertilize farms.
The squishy tissues are all edible as meat (with the exception of cartilage, hair, and nervous tissue, which are useless as far as I know) and the hard ones can be made into crafts.
Skills and professions are still hardcoded and you can't add new ones. However, the new reaction syntax (midway down this post) has a SKILL tag that lets you choose which hardcoded skill should be used by the reaction.
Aren't there some redundant skills? I think I remember hearing of an alchemy, and some druid-y type deal.
Those have been in the game forever and are still present, yes. I'm not sure what you mean by "redundant" though.