Remove varianle NEXT_PUBLIC_BASE_URL

src/app/sitemap.ts

@@ -1,13 +1,14 @@
-import { env } from '@/lib/env'
 import { MetadataRoute } from 'next'
 
 export default function sitemap(): MetadataRoute.Sitemap {
-  return [
-    {
-      url: env.NEXT_PUBLIC_BASE_URL,
-      lastModified: new Date(),
-      changeFrequency: 'yearly',
-      priority: 1,
-    },
-  ]
+  return process.env.VERCEL_URL
+    ? [
+        {
+          url: process.env.VERCEL_URL,
+          lastModified: new Date(),
+          changeFrequency: 'yearly',
+          priority: 1,
+        },
+      ]
+    : []
 }