Quarkus is an open source, Kubernetes-native JavaTM framework tailored for GraalVM and OpenJDK HotSpot. It offers a full-stack framework, using top Java libraries and standards. With Quarkus, Java can be a leading platform in Kubernetes and serverless environments, while offering developers a unified reactive and imperative programming model to address a wider range of distributed application architectures. Red Hat is the Quarkus project sponsor and a top contributor to the Quarkus community. This checklist details four reasons why developers should use Quarkus as a programming tool.