Working on my Mill build tool, aiming to bring a modern developer experience to the JVM ecosystem:
Build tools are generally an un-sexy field, and JVM build tools perhaps doubly so. But Mill demonstrates that with some thought put into the design and architecture, we can speed up JVM development workflows by 3-6x over traditional JVM tools like Maven or Gradle, and make it subjectively much easier to navigate in IDEs and extend with custom logic.
If you're passionate about developer experience and work on the JVM, I encourage you to give Mill a try!