This is the sixteenth episode of Hack To Start. Your hosts, Franco Varriano (on Twitter @ FrancoVarriano) and Tyler Copeland (on Twitter @ TylerCopeland), speak with Zach Holman(on Twitter @ Holman), the ninth employee at GitHub and the founder of speaking.io. He speaks with us about open source projects, building useful products, and how to speak effectively in public. Zach initially worked on what would become GitHub Enterprise and now mostly speaks on the subjects of building products, growing startups, and how to give great talks.