I'm actually working on one. I don't know what will come out of it, but it's an interesting endeavor. As soon as it's shareable I will share it on Github.

I'm basically trying to do a superset of typescript where you create elements so:

  const root = c({
    el: 'div',
    children: [
      `hello, ${store.user.name}`
    ],
    attr: {
      class: 'bold smart',
      id: 'abc',
      bla: true,
    },
    evts: {
      click: () => {
        console.log("Clicked")
      }
    }
  });

And store store.user.name is "magically" reactive.

Was that what you meant?