Henk van Arkel

BuilderModern· Dutch

Has led STRO for 30+ years, building Cyclos, the payment software behind 1,500+ community-currency and payment systems with 4.5M+ account holders, plus circular-money designs from Sardinia's Sardex (early years) to the Utrechtse Euro and a current Amsterdam Nieuw-West project. His life's work is the practical infrastructure that lets ordinary communities run fair money.