As the tooling ecosystem continues to evolve, developers nowadays can easily scaffold out a new Ember app and start being productive right away, without ever thinking of all the intricacies that go on behind a typical build command. But there comes a time when manipulating trees or nodes in Broccoli may be required to support a custom project architecture, or you may find yourself having to extend the build for specialized environments through addons. Whether you face any one of those scenarios, or you simply want to know more of what goes on behind the curtain, this talk is for you.