That’s a testament to XSD being useful (my experiments reached a similar conclusion). IRIs also show up some and I can imagine support for wgs84 datatypes (which don’t currently exist, but they could someday).
I asked James Martin for links to his ShEx forms work. Channeling James:
[[
https://github.com/inrupt/solid-react-sdk is a decent intro, or https://github.com/inrupt/generator-solid-react for the whole SDK / generator
also https://github.com/inrupt/generator-solid-react#forms-and-form-models and https://github.com/inrupt/solid-react-components#formmodel
]]