To me JDK9 and Jigsaw sounds like a viable alternative to Electron. Cross-platform, well-known mature language, distributable standalone app bundle includes the

To me JDK9 and Jigsaw sounds like a viable alternative to Electron. Cross-platform, well-known mature language, distributable standalone app bundle includes the runtime and takes ~15-30 MB zipped or ~80MB unpacked on disk (I tried swing UI, but I would expect JavaFX to have similar results). I don't remember RAM usage details (I tried it a few weeks ago), but I wouldn't expect it to be higher than Electron's.