I'm trying that out, and it seems that jquery is installed when you include the Semantic UI CSS. According to the docs: http://react.semantic-ui.com/usage, you need to install the CSS separately with

  $ npm install semantic-ui-css --save

and with that I get

  ├─┬ semantic-ui-css@2.2.10
  │   └── jquery@3.2.1

Plus a whitescreen because jQuery is not defined...bummer

As one would expect with a fully featured framework, it does add some weight. I have a basic form project I'm working on that just uses some basic styling and components that I hand coded and the production JS and CSS (after gzip) are ~70k and ~2k respectively.

After including Semantic UI and dropping an example form component in, it jumped up to ~140k JS and ~93k CSS.

The Angular integrations seem to still use jQuery, that is such a bummer for me personally, it's like a bad omen.

Yes, I recently learned about that version. I am not yet sure whether it fits well with my ClojureScript code.