diff --git a/.nvmrc b/.nvmrc
index b009dfb..3c03207 100644
--- a/.nvmrc
+++ b/.nvmrc
@@ -1 +1 @@
-lts/*
+18
diff --git a/app/not-found.tsx b/app/not-found.tsx
index 0835b02..a85ab65 100644
--- a/app/not-found.tsx
+++ b/app/not-found.tsx
@@ -1,6 +1,8 @@
 import Image from 'next/image'
 import notFound from '../public/not-found.webp'
 
+export const runtime = 'edge'
+
 /**
  * The 404 component.
  */
diff --git a/app/r/[slug]/page.tsx b/app/r/[slug]/page.tsx
index 0e5c6a9..1101596 100644
--- a/app/r/[slug]/page.tsx
+++ b/app/r/[slug]/page.tsx
@@ -8,6 +8,8 @@ import {PageProps} from '@/lib/types'
 import type {Metadata} from 'next'
 import Link from 'next/link'
 
+export const runtime = 'edge'
+
 /**
  * Generate metadata.
  *