The most niche thing I probably do (badly) is making chocolate. Not like, just tempering chocolate, but putting nibs and milk powder and sugar and cocoa butter in my countertop melanger and letting it work for like 24 hours until it's nice and smooth. I haven't really perfected it at all and my chocolate recipe is currently mediocre, and i need to experiment with better nibs and roasting them myself, but it's an interesting process that I enjoy.
Otherwise uh, IDK I do everything. I love cooking/baking, and most types of art, I'm huge into fabric arts like nuno felting and needle felting, embroidery is one of my absolute favorite things, I'm pretty decent at sewing, I also like to draw and I am really itching to get into sculpey jewelry crafting and maybe miniatures, I've dabbled in wire jewelry (meh at it), I built (with help) a coffee table where the top comes up so you can turn the base on its side to become a dining table, I'm sure there a bunch of stuff I'm forgetting... oh I guess I'm really good at laundry? I can get stains out of almost anything at this point.