There are plenty of posts on Hacker News extolling the virtues of CD and how to implement it in your favorite tech stack. But what if you’re not starting from scratch? What if you’ve already got a large Ruby on Rails/Node.js/Java code base that the company depends on? What if the way your team worked for the better part of a decade requires a paradigm shift? We all know how open engineers are to change… The best way to grow is to learn from your mistakes, but it’s even better if you can learn …