svelte.config.js

import { vitePreprocess } from '@sveltejs/vite-plugin-svelte'
import sveltePreprocess from 'svelte-preprocess'

export default {
  // Consult https://svelte.dev/docs#compile-time-svelte-preprocess
  // for more information about preprocessors
  preprocess: [vitePreprocess(), sveltePreprocess()]
}