svelte.config.js

import adapter from '@sveltejs/adapter-auto';
import adapterNode from '@sveltejs/adapter-node';
import { vitePreprocess } from '@sveltejs/kit/vite';

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

	kit: {
		// adapter-auto only supports some environments, see https://kit.svelte.dev/docs/adapter-auto for a list.
		// If your environment is not supported or you settled on a specific environment, switch out the adapter.
		// See https://kit.svelte.dev/docs/adapters for more information about adapters.
		adapter: process.env.NODE_ENV === 'development' ? adapter({
			out: 'build',
		}) : adapterNode({
			out: 'build',
		}),
		files: {
			assets: process.env.PUBLIC_FILE_UPLOAD_DIR,
		}
	},
};

export default config;