Cisco is probably the largest Rails shop you’ve never heard of. Our 4 million line Ruby codebase has been under continuous development since 2007. As with any large codebase, ours is not without challenges. In “Derailing Our Application,” we share how our architecture has evolved to decouple 800,000 lines of Ruby code from Rails constructs in order to enable us to scale our team to 1,000 engineers and beyond without losing the benefits of Rails. Join us on the track less traveled! All aboard!