Running a Highly Available Large Scale Systems is a lot of work. For the past 2 years, we've been running 100% serverless on a full production environment, serving customers worldwide. No VMs, no containers, no Kubernetes. Just code. In this session I will present why we decided to go fully serverless, how it helped us move faster than our competitors, where did serverless computing worked best and where there's more work to be done. At the end of this session, you'll learn how to run your next side-project, production service, or even your complete startup, without losing a night's sleep.