update to ssr, include start command for nixpacks

astro.config.mjs

@@ -2,4 +2,23 @@
 import { defineConfig } from 'astro/config';
 
 // https://astro.build/config
-export default defineConfig({});
+export default defineConfig({
+	output: 'server',
+	site: 'https://home.joachimkern.de',
+	adapter: node({
+		mode: "standalone"
+	  }),
+	server:{
+		port: 3000,
+		host: true
+	},
+	vite:{
+		ssr: {
+			noExternal: ['path-to-regexp'],
+		  },
+		preview: {
+			port: 3000,
+			host: true
+		}
+	}
+});

package.json

@@ -5,6 +5,7 @@
   "scripts": {
     "dev": "astro dev",
     "build": "astro build",
+    "start": "node ./dist/server/entry.mjs",
     "preview": "astro preview",
     "astro": "astro"
   },