Exciting stuff! In particual I really like how neatly organized the project roadmap is, with a quick glance at the project GitHub page I can tell what you guys are working on and how development is proceding.

Also, props for using a widely established language like Java. I know Rust has lots of advantages and is all in all an awesome language, but having to learn a new language just to be able to contribute and submit PRs to your favourite open source project kinda kills the hype (and takes away a bunch of time).