On another note, XULRunner was a JS runtime with XUL for UI markup, like an early Electron. It's a shame the project was scrapped, I really enjoyed writing XUL+ES5 and seeing XML become native widgetry. (It's the platform that Firefox was initially built on, I don't know how much of it is still there now)

Bring back XULRunner :'( That project was way ahead of its time