Hans-Christoph Steiner spends his time making private communications software usable by everyone, designing interactive software with a focus on human perceptual capabilities, building networks with free software, and composing music with computers. With an emphasis on collaboration, he has worked in many forms, including free software for mobile and embedded devices, responsive sound environments, free wireless networks that help build community, musical robots that listen, programming environments allow people to play with math, and a jet-powered fish that you can ride. To further his research, he teaches and works at various media art centers and organizes open, collaborative hacklabs and barcamp conferences. He is currently building encrypted, anonymous communications devices as part of the Guardian Project as well as teaching courses in interaction design and media programming NYU's Interactive Telecommunications Program and workshops around the world.