Derek and Sean discuss hunting Rails performance regressions and techniques for improving performance in your web applications.
Sean and Derek take a fresh look at the tradeoffs in writing CoffeeScript and whether we should be using an ES6 transpiler instead.
Derek and Sean discuss Sean's commit access to Rails, what's coming in Rails 4.2, and how to go about making Rails code better.
Sean and Derek discuss lessons learned from following Sandi Metz' rules on a project and the overall impact of rules on code.