I've been getting into primitive technology lately. It all started when I looked at my back yard and thought hey, if we call it red clay, then I should be able to make it into pottery. I take dirt from my yard, levigate it, add grog and wedge, hand-build pots, and fire them in my fire pit. Been making sharpening stones from river rocks. Crafting replicas of Roman machines. That sort of thing.
That is an epic niche. Primitive skills are awesome. Have you ever read The Toaster Project? It’s a story about the attempt to build a ‘simple’ modern appliance starting with raw materials and only using primitive methods. Very insightful look into how complex our built environment really is.