Jan Vander Tuin is a founder of the Community Supported Agriculture (CSA) movement.
[1][2][3][4] He is also a cycling activist and bicycle designer, and in 1992 started the Center for Appropriate Transport in Eugene, Oregon.
[5][6] Vander Tuin learned about co-operative biodynamic farming in Switzerland,[7][8] and is credited with bringing his Swiss experience to the revival of local agriculture in the US.
[9] Vander Tuin settled in Eugene, Oregon in 1990.
He started building workbikes under the name Human Powered Machines.