We examine preindustrial and nonindustrial solutions to house, clothe, and feed ourselves in the post-fossil-fuel world. We bring nonindustrial subsistence technology to (over)developed societies. We exist at the nexus of ancient, ethnographic, and modern subsistence. We aim to 1) identify ancient and contemporary nonindustrial technologies appropriate for use in modern, small-scale, self-sustaining infrastructure; 2) create do-it-yourself, resource-light solutions to sustainability problems; 3) provide our findings to the public for free use; and 4) create platforms to share information related to sustainability, especially solutions derived from ancient or ethnographic sources. We prize simple solutions over complex ones and eschew needless complication.