I think this extends to wealthy communities too. Basically every item in my home more complex than a spoon is beyond my capacity to manufacture or repair. A resource that teaches me how to build useful things without relying on a complex supply chain or prohibitively expensive tools would be pretty darn liberating.
You know you already have that resource, right? That's what the internet is. There's nothing stopping you from learning, for example, woodworking today. You just have to start.
Well, fundamentally, there are two different types of furniture:
- platforms
- boxes
so if one can build a drawer box, one should be able to make pretty much anything --- it's just a matter of working out how to cut things to length/width and possibly reduce/adjust thickness and what sort of joinery one wishes to use.
See my top-level post elsethread for the metal-working angle.