This is simply amazing. Should I get some land someday, I hope to build a lot of Marcin’s tools and put them to good use. More information at Open Source Ecology.
The political aspect of this is also fascinating. As he mentions, the means of production are now in the hands of the people. There are no serious intellectual property impediments to using these designs. Once made, people can use them to produce wealth. It’s a socialist goal, implemented using liberty and open source ideas.
I wonder what right libertarians think about it?