Try something

apps/panoramablick-saalbach.at/nuxt.config.ts

@@ -32,11 +32,9 @@ export default defineNuxtConfig({
   },
   nitro: {
     prerender: {
-      routes: ['/de/summer'],
-    },
-  },
-  routeRules: {
-    '/': { prerender: false },
-  },
-  debug: true
+      crawlLinks: true,
+      routes: ["/de/summer"],
+      failOnError: true
+    }
+  }
 })

apps/panoramablick-saalbach.at/package.json

@@ -5,7 +5,7 @@
   "scripts": {
     "build": "nuxt build",
     "dev": "nuxt dev",
-    "generate": "nuxt generate --logLevel=verbose",
+    "generate": "nuxt generate",
     "preview": "nuxt preview",
     "postinstall": "nuxt prepare"
   },

packages/layers/content/app.config.ts

@@ -2,6 +2,6 @@ export default defineAppConfig({
   content: {
     matrix: undefined,
     business: undefined,
-    legal: undefined
+    legal: undefined,
   }
 })

packages/layers/content/composables/useContentPrefix.ts

@@ -45,5 +45,9 @@ export function useContentPrefix() {
     return (segments.length ? '/' : '') + segments.join('/')
   }
 
-  return {getLocaleVariant, buildPrefix}
+  return {
+    prefixes: prefixes.map(p => p[0]),
+    getLocaleVariant: getLocaleVariant,
+    buildPrefix: buildPrefix
+  }
 }

packages/layers/content/nuxt.config.ts

@@ -4,5 +4,5 @@ export default defineNuxtConfig({
   $meta: {
     name: 'content', // creates alias #layers/content
   },
-  devtools: { enabled: true }
+  devtools: { enabled: true },
 })

packages/layers/content/package.json

@@ -7,7 +7,6 @@
     "dev": "nuxi dev .playground",
     "dev:prepare": "nuxt prepare .playground",
     "build": "nuxt build .playground",
-    "generate": "nuxt generate .playground",
     "preview": "nuxt preview .playground",
     "lint": "eslint ."
   },