Host of On Rails, Robby Russell helps software teams find calm in legacy code. He leads Planet Argon, a consultancy focused on improving and sustaining existing Ruby on Rails applications. A contributor to the Rails community since 2005, he’s also the creator of Oh My Zsh and host of Maintainable. He blogs at robbyonrails.com, plays cinematic post-rock with The Mighty Missoula, and believes the best code is the kind you don’t have to rewrite.