Looks very good and probably will be my library of choice for my next web project.

For desktop, I'm very happy with qmetaobject-rs. Qt is time tested and highly reliable. And gui is, frankly, serious business.

Also, Generally speaking, UI itself is best done declaratively rather than imperatively. There's a reason quick is adopted more than qwidgets.

For simple stuff, qml is OK/better (except the JS part)... but for some more complicated views I'd want qwidgets.