The thing I want for this kind of tools is to be a TRUE REPLACEMENTE of webviews. I don't wanna code in JS. No in Dart, but I can accept to use it ONLY for UI

The thing I want for this kind of tools is to be a TRUE REPLACEMENTE of webviews. I don't wanna code in JS. No in Dart, but I can accept to use it ONLY for UI rendering. SO I can use F# or Swift or any other language. ie: I wanna to have a webview-html-css-alike "render screen" and let me use my own language in the back.