As much as I dislike JS, my experiences with React Native (JS but largely native UI elements) and Electron (JS with some native elements, but largely HTML+CSS) has convinced me that that HTML+CSS is my real (performance and battery life) enemy, with JS a significant but distant second. I look forward to better UI kits that just draw to a Canvas-like surface or something, ideally without needing an HTML+CSS engine at all.

I'm not thrilled with that because I really like the old-school lightly-styled-HTML web, but I have to admit it's really really bad at "app" style layouts and interactivity, so if we must do that with the web (and apparently we must) it's gotta go, or it's gonna continue to suck.

I dunno... React and React Native are nice. I would prefer to use those for UI but do everything else in C++14 or some other real language. The web stuff could just be the view.