npm install -D @11ty/eleventy preact @tuqulore-inc/eleventy-plugin-preact-islandimport { clientComponent } from '@tuqulore-inc/eleventy-plugin-preact-island/island';import { useState } from 'preact/hooks'; function Counter() { const [count, setCount] = useState(0); return <button onClick={() => setCount(count + 1)}>{count}</button>;} export default clientComponent(Counter, import.meta.url);