RxJava vs Quarkus: What are the differences?
RxJava: Reactive Extensions for the JVM. A library for composing asynchronous and event-based programs by using observable sequences for the Java VM; Quarkus: A Kubernetes Native Java stack tailored for OpenJDK HotSpot and GraalVM, crafted from the best of breed Java libraries and standards. It tailors your application for GraalVM and HotSpot. Amazingly fast boot time, incredibly low RSS memory (not just heap size!) offering near instant scale up and high density memory utilization in container orchestration platforms like Kubernetes. We use a technique we call compile time boot.
RxJava and Quarkus can be primarily classified as "Java" tools.
RxJava and Quarkus are both open source tools. It seems that RxJava with 41.4K GitHub stars and 6.96K forks on GitHub has more adoption than Quarkus with 3.52K GitHub stars and 572 GitHub forks.