Decorators are becoming an essential part of the Ember.js Programming Model with Octane. While APIs like @tracked and @action are easy to use though, many developers are not yet familiar with the concept of decorators as such and don't have a clear mental model of what they are and how they work. This talk dives deep into the ideas and motivations behind decorators, introduces a bit of historical context and similarities to concepts in other languages and gives an overview of how decorators work internally. By the end of this talk, you will have a good understanding of how decorators work, what the