Apparently JavaFX didnt die as we all thought back when Oracle spit it out of the JDK, they will happily offer support for it now, but who wants to be in bed with Oracle.

That looks really sleek. One thing JavaFX got right was CSS support.

Thanks for writing this up! It still assumes a lot of prior knowledge, but it's a good starting point to approaching these problems. How JavaFX works on different platforms really looks like dark magic from the outside. I wrote an app in Clojure using cljfx. I can jpackage it and run it Linux/Windows/macOS .. it's quite easy to get working. But once you step outside of the standard platforms it gets complicated really fast. Trying to get it to Android or a native build and suddenly you have to be an expert in several build systems and JVM internals.