The newly bread fish keep the "spoilness". So at some point they just end up as spoilage. Any plans to fix this?

Huh... I've not really looked into spoilage mechanics yet. Never realised that's how it worked. Sure, I'll fix I can figure out how. Can't really give you a timeline, but I'll do what I can. Also need give a category to Wood Gas and Fish Oil, since those currently don't show up in any signal categories.

Yeah, turns out it was pretty simple. Recipes have a result_is_always_fresh boolean flag. Setting that to "true" did the trick, I think. It's done in 1.0.5, if you want to give it a check. Mind you, I did some housekeeping while I had the files open, so some sprites and item ordering has changed. Also, restored module slots to the Biodome, since 2.0 changed how those were handled and broke my definitions.

Sorry for the late response. Works like a charm. Thanks a million!