Nue indeed looks interesting. I could not immediately understand whether it uses a one-way data binding. Without it, and without a reactive model of some sort,

Nue indeed looks interesting. I could not immediately understand whether it uses a one-way data binding. Without it, and without a reactive model of some sort, building large UIs becomes a pain. The React-based button from some framework is either over-engineered, or does way more than just a button. Using or not using such a component is a choice. React may be a bit large (like 30-50 kB for a "hello world"), but preact is below 6 kB and gives you 90% of the React power for lighter-weight apps. Also, the point of React is building huge and hugely complex dynamic UIs. There are much lighter-weight tools to add small bits of interactivity to mostly static pages, which are still the majority of the Web. (Ironically, HTMX is 14 kB, 2.5 timex larger than preact.)