One could become a local modern age 'blacksmith' and make replacement parts or limited manufacturing runs. Having a lathe and mill are essential, a small forge and ability to melt and pour metal could be useful. The now out of business Lindsay Publications was invaluable with books on manufacturing technologies useful in a meltdown reversion to older times. On the wood side, one could make many wooden items for homes.
One could become a local modern age 'blacksmith' and make replacement parts or limited manufacturing runs. Having a lathe and mill are essential, a small forge and ability to melt and pour metal could be useful.
On the wood side, one could make many wooden items for homes.