Add @rsbuild/plugin-preact to plugins in addfox.config.ts to enable Preact and JSX/TSX.
@rsbuild/plugin-preact
addfox.config.ts
pnpm add preact @rsbuild/plugin-preact -D
npm install preact @rsbuild/plugin-preact -D
yarn add preact @rsbuild/plugin-preact -D
bun add preact @rsbuild/plugin-preact -D
// addfox.config.ts import { defineConfig } from "addfox"; import { pluginPreact } from "@rsbuild/plugin-preact"; export default defineConfig({ plugins: [pluginPreact()], });