Once upon a time there was iced_web https://github.com/iced-rs/iced_web

FWIW, as an iced user, personally I'd prefer to write iced and use something like sycamore to build for the web rather than the other way around

I'm personally not to big of a fan of the Elm pattern for UI. Although it can be quite elegant, most of the times, it ends up being quite verbose even for simple things.

I feel like combining the drawing layer from one of these existing native UI frameworks with Sycamore could be interesting in reducing some of the boilerplate with GTK, Iced, GPUI, etc...