Evan Henshaw-Plath, better known as Rabble, is a pioneering programmer for social media platforms and decentralized technologies. Here, Rabble explains how network protocols are critical infrastructure for enabling -- or impeding -- commons and open markets, not to mention privacy, free speech, and community control. Their ambition is a future in which everyone has "access to authentic, private online communities built on care, connection, and sustainable relationships.” [More on commons at www.Bollier.org.]