Along with Infinite Craft, one of the very few uses of AI for core content in a game that I think makes sense. I see that you take feedback for which categories to include from your Patreon, so I won't comment on that. But, my suggestion is to add stuff that counts as multiple categories, only unlocking after you've unlocked all of its categories, so in a way you're unlocking more as you go along. Also, rather than starting out with a "normal" category unlocked (which clearly actually has a specific type of content to it), I think it would be better to have one of each type of category available for hire so players can see what everything is if they don't understand what any label means (maybe require that the sample has to be hired first in order to unlock their category).