Sorry about the delay in getting a new test version out (and the actual new version out at all). I've been horribly busy.
It looks right now like Incendium is going to just be mildly warm for now. I can't really get it to be useful without toasting the users. I did discover that dwarves could haul ridiculously hot stuff around, though, and make super hot floors. Sadly, the floors don't seem to do anything. Might be able to make steam by dropping hot bars into water, though. I'll have to test that.
In any case, I'll try to get the new version of the test files out this week. I'll have the tradable alchemy bars in as well as simplified jars.
Looking forward to after this release, I'll probably start getting the various Primitive Civs in. I'm also thinking about ways to implement a Library in a suitable fashion. Those have cropped up in a few places, and I'd like to do something like that. But probably a bit more intensive then the small-scale stuff that people have put in place so far. I'm thinking Scribing Tables that take in some sort of Ink and Paper (skins, maybe?) and produce Scrolls of a given type. Architecture, Farming, Engineering, and the like. Those scrolls would then be required to produce a library workshop that trains that skill.
I can't enforce skill levels at this point, I don't think, but I figure you can make things realistic yourself if you're so inclined. Simply require a sufficiently high level skill in the Scribing Tables and a sufficiently low skill cap in the actual Library sections and you can simulate highly skilled dwarves writing down knowledge to train lesser-skilled dwarves with.