A paradigm for the decentralized future. Mycelium is a revolutionary ecosystem fostering accessibility, education, and collaboration - dedicated to developing and advancing decentralized physical infrastructure networks (DePINs). We operate the Mycelium Testbed, the world's first decentralized physical infrastructure playground. Offering hundreds of established locations and covering over 1620 square miles in NORTHWEST ARKANSAS, the extensive and diverse physical infrastructure within the Testbed provides a comprehensive platform to build, test, and showcase DePINs while eliminating the complexities of decentralized network implementation.