We’re still using https://www.npmjs.com/package/react-dom-factories for plain DOM elements, so code looks like

    dom.div({ props }, ...)

For our own components, we export the output of React.createFactory https://reactjs.org/docs/react-api.html#createfactory rather that the component itself, so rendering code looks like:

    MyComponent({ props }, ...)

I realise that both of those are marked legacy, with a nudge towards using JSX instead, but they are pretty thin wrappers around createElement so it seems like a small dependency.

it's funny how originally jsx is what kept me away from react, and now it's what keeps me from leaving.

It's funny how everybody hated E4X when Adobe and Mozilla were doing it, and love JSX now.

I didn't even know this existed.

You can actually leave react and still keep JSX. This tiny library lets you use JSX as a templating mechanism: https://github.com/wisercoder/uibuilder