build: add node adapter to build config

svelte.config.js

@@ -1,10 +1,27 @@
 import staticAdapter from '@sveltejs/adapter-static';
 import vercelAdapter from '@sveltejs/adapter-vercel';
+import nodeAdapter from "@sveltejs/adapter-node";
+
 import { vitePreprocess } from '@sveltejs/kit/vite';
 
 /** @type {import('@sveltejs/kit').Config} */
 const BASE_PATH = process.env.BASE_PATH || '';
 const GITHUB_PAGES = process.env.GITHUB_ACTIONS === 'true';
+const CSUNIBO_DEPLOY = process.env.CSUNIBO_DEPLOY === 'true';
+
+/**
+ *
+ * @returns {import('@sveltejs/kit').Adapter}
+ */
+function chooseAdapter() {
+	if (GITHUB_PAGES) {
+		return staticAdapter({ fallback: '404.html' });
+	} else if (CSUNIBO_DEPLOY) {
+		return nodeAdapter();
+	} else {
+		return vercelAdapter();
+	}
+}
 
 const config = {
 	// Consult https://kit.svelte.dev/docs/integrations#preprocessors
@@ -15,11 +32,7 @@ const config = {
 		// 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: GITHUB_PAGES
-			? staticAdapter({
-					fallback: '404.html'
-			  })
-			: vercelAdapter(),
+		adapter: chooseAdapter(),
 		paths: {
 			base: BASE_PATH
 		}