# @wrnexus/react Opt-in React islands for WRNexusJS: mount npm React components inside server-rendered `.wrn` pages without adopting React as the framework's rendering model. Import a `.tsx` component in a `.wrn` script block and use it as an element. The compiler emits a `data-wrn-island` placeholder instead of a server render, and this package's runtime mounts it in the browser with `createRoot`. Islands are client-only, each mounts inside its own error boundary, and roots are disposed on client-side navigation. `react` and `react-dom` are optional peer dependencies, so apps that use no islands ship no React. A route with no islands still ships zero framework JavaScript. Use `useWrnStore(name, selector?)` to read a WRNexus store from inside an island and `useWrnActions(name)` to write to it. Writes belong in event handlers or effects, never during render.