I honestly don't understand what's special about this. It's an entire compile-to-JS language that just redoes what you can already do in JS. It's basically LevelDB (plus a few existing LevelDB plugins) and MobX/Bacon/whatever FRP library. I guess it makes it a little bit more approachable and removes some boilerplate, but if you're not developing your entire SPA in Eve, you might as well just use the exising Javascript FRP ecosystem.