counter/svelte.config.js

import staticAdapter from '@sveltejs/adapter-static';
import autoAdapter from '@sveltejs/adapter-auto';
import { vitePreprocess } from '@sveltejs/vite-plugin-svelte';

const isProd = process.env.NODE_ENV === 'production';

export default {
  preprocess: vitePreprocess(),
  kit: {
    adapter: isProd
      ? staticAdapter({ pages: 'build', assets: 'build', fallback: 'index.html' })
      : autoAdapter()
  }
};