svelte-ts/svelte.config.js

import preprocess from "svelte-preprocess";
import adapter from '@sveltejs/adapter-node';
import { vitePreprocess } from "@sveltejs/vite-plugin-svelte";

/** @type {import('@sveltejs/kit').Config} */
const config = {
  // Consult https://kit.svelte.dev/docs/integrations#preprocessors
  // for more information about preprocessors
  preprocess: [
    vitePreprocess(),
    preprocess({
      postcss: true,
    }),
  ],

  kit: {
    adapter: adapter(),
  },
};

export default config;