Explore the journey of building and selling Solo, an open-source secure hardware token, in this 41-minute conference talk. Learn about the development of a low-cost security key implementing U2F and FIDO2 protocols, which are part of the new W3C standard WebAuthn. Discover how Solo differs from traditional security keys by using open-source software and hardware without proprietary components. Follow the speaker's process of creating, crowdfunding, and bootstrapping a business to produce and sell security keys full-time. Gain insights into hardware design, physical security, and the challenges of bringing an open-source security product to market. Understand the technical aspects of Solo, including its hardware requirements, microcontroller selection, and firmware roadmap. Delve into the complexities of prototype development, production, and order fulfillment for a hardware startup.