This document introduces an open source AEM platform for running AEM on cloud infrastructure like AWS. It is based on the authors' experience with 5 AEM on AWS projects. The platform includes tools for baking AMIs, building AEM stacks, and managing AEM instances. It supports multiple AEM versions and architectures. All components are open source and available on GitHub under an Apache 2 license. The goal is to allow users to benefit from shared upgrade and testing efforts while competing on applications rather than infrastructure.