This looks nice and promising for multi core apps. But, 85Mb for a demo app? It sounds heavy and might end up like intelliJ IDEs I think. How about compiling to binaries with Graal native? Can it be done?
Yes, it can be done: JavaFX developers created a library that deals with various pitfalls of compiling it to GraalVM: https://github.com/gluonhq/substrate
I think using jpackage is easier to start with since there are less cutting-edge moving parts involved, and it imposes fewer restrictions on the runtime.