Serverless is one of the hottest trend topic since cloud became so pop. Unfortunately, the transition between a "classic" synchronous architecture to a serverless asynchronous one is not trivial. In this talk we're going to understand what does it takes to switch to serverless with a Kotlin backend application, thanks to Serverless Framework, and how Pixartprinting adopted this tecnology in order to transform its own architecture into an event-driven, asynchronous, scalable, but mostly serverless one.