This is so awesome. Beyond RepRap, big open source hardware. Tractors, brick presses, etc. You can build them locally for a fraction of the cost of regular machinery, and then also use locally available materials (like rubble on your building site to make more bricks).

If you’re technically capable and looking for a local business opportunity – start building some of this stuff, and offer your services in the neighborhood. You’ll be able operate cheaper and provide things that others cannot compete with. Total win.