However, it is more like an alternative to Petite-Vue or Riot.js rather than full-blown Vue or React. Therefore your comparison vs headlessui-react/vue is like apple vs orange/banana: headless UI listbox is much more complicated than your implementation. You can easily make a listbox in Vue using a similar amount of code as Nue.
One thing which is lacking in your Getting Started (https://nuejs.org/docs/nuejs/getting-started.html) is how to use Nue without a build step, in order to progressively enhance existing HTML websites like Petite Vue: `<script src="//unpkg.com/petite-vue" defer init></script>` or Alpine.js: `<script src="//unpkg.com/alpinejs" defer></script>`?
How is Nue performance compared to other JS frameworks? Could you add it to https://krausest.github.io/js-framework-benchmark/current.ht...?