 FarmHack is a farmer-driven community to develop, document, and build tools for resilient agriculture. For the last 50 years, mainstream agricultural technology has progressed along a trajectory of bigger is better, with top-down chemical, capital, and energy-intensive machines. The kind of equipment we need is affordable, adaptable, and easy to fix. Because of the lack of such equipment in the marketplace, many of us restore and retrofit old equipment, or create new tools built from scratch. We want the right tools for the job, and the job is sustainable agriculture. The FarmHack community was founded in 2010 by a group of farmers and organizers to address this need. Inspired by many individual efforts for inventive design and adaptation, we wanted to create a space for collaboration, allowing us to share skills, ideas, and designs. We wanted to team up with non-farmers who have relevant skillsets and build new relationships and manufacturing capacity in our local economies. We bring our community together, both in-person and online, attending our farmers, engineers, fabricators, and others who come together in support of resilient and successful farming systems. As an operating system, the FarmHack community is built on open-source principles. The platform is built on Drupal, and the community and all products of it are available to and editable by all. It is horizontal exchange of information, principles, and mechanical ideas. On the website, you can contribute or learn from a forum or the tool wikis. The site works because users document the tools they've made or modified. This creates a directory of innovations and ideas to build from. Each tool is documented in the FarmHack method using links, videos, components, and schematics for works in progress or functioning prototypes. You can even offer polished products as kits for sale. Because FarmHack is an open-source community whose success is driven by the needs of its users, our growing strength comes from users like you. We hope you will join the FarmHack community. Join in the spirit of open-source, of mutual aid, appropriate technology, and mechanical innovation to join us in the regional manufacturing and fabrication of good tools for good farms. These are the values and tools that fit the ethics and systems of our sustainable farms and the new economy we're building together.