Oh this is awesome: http://members.efn.org/~itech/
A collection of "pubic domain" DIY tech for small farms and gardens, including a giant food dehydrator, small threshers, and small winnowers.
@Zuph I knew of another side alike but can't find the URL…
@Zuph not this one but:
a broader one cited in there as well:https://www.scientificamerican.com/article/rebooting-civilization-survivorse28099-how-to-guide-for-restoring-technology-after-the-apocalypse-excerpt/
@Zuph and some more here:http://blog.longnow.org/02010/04/06/manual-for-civilization/
but not the one I remember.
Instance de l'association G3L basée à Valence, Drôme, France