Is there a way to use standard frameworks like bootstrap with this or other similar wasm based rust frontends? Otherwise, it's hard to see how it will ever have enough rich components to really take off.
I had some luck with yew + bulma.io. There's a crate called ybc they implements yew components using bulma classes. I had to reimplement a component myself though because I needed to hoist its state. Doing so wasn't very complicated.