diff --git a/next.config.ts b/next.config.ts
index fd7c7e3..8c34ea8 100644
--- a/next.config.ts
+++ b/next.config.ts
@@ -15,6 +15,7 @@ const baseConfig: NextConfig = {
   poweredByHeader: false,
   reactStrictMode: true,
   reactCompiler: true,
+  trailingSlash: true,
 };
 
 const withBundleAnalyzer = bundleAnalyzer({
@@ -23,7 +24,6 @@ const withBundleAnalyzer = bundleAnalyzer({
 
 // Set up Nextra with its configuration
 const withNextra = nextra({
-  defaultShowCopyCode: true,
   latex: true,
   contentDirBasePath: '/',
 });
diff --git a/package.json b/package.json
index 5f46804..cbee212 100644
--- a/package.json
+++ b/package.json
@@ -7,7 +7,7 @@
     "start": "next start",
     "lint": "eslint .",
     "lint:fix": "eslint . --fix",
-    "postbuild": "pagefind --site .next/server/app --output-path out/_pagefind"
+    "postbuild": "pagefind --site .next/server/app --output-path public/_pagefind && cp out/404/index.html out/404.html"
   },
   "dependencies": {
     "@commitlint/cli": "^20.3.0",
diff --git a/src/app/404/page.tsx b/src/app/404/page.tsx
new file mode 100644
index 0000000..eb1ecb1
--- /dev/null
+++ b/src/app/404/page.tsx
@@ -0,0 +1,13 @@
+import NotFoundCanvas from '@/components/NotFoundCanvas';
+
+export default function NotFound() {
+  return (
+    <div style={{ textAlign: 'center', padding: '2rem' }}>
+      <h1>Page not found</h1>
+      <p>Sorry, that page does not exist.</p>
+      <div style={{ maxWidth: '800px', margin: '0 auto' }}>
+        <NotFoundCanvas />
+      </div>
+    </div>
+  );
+}
diff --git a/src/app/not-found.tsx b/src/app/not-found.tsx
index eb1ecb1..138db02 100644
--- a/src/app/not-found.tsx
+++ b/src/app/not-found.tsx
@@ -1,13 +1,3 @@
-import NotFoundCanvas from '@/components/NotFoundCanvas';
+import NotFound from '@/app/404/page';
 
-export default function NotFound() {
-  return (
-    <div style={{ textAlign: 'center', padding: '2rem' }}>
-      <h1>Page not found</h1>
-      <p>Sorry, that page does not exist.</p>
-      <div style={{ maxWidth: '800px', margin: '0 auto' }}>
-        <NotFoundCanvas />
-      </div>
-    </div>
-  );
-}
+export default NotFound;
diff --git a/src/content/404.mdx b/src/content/404.mdx
deleted file mode 100644
index accd4b1..0000000
--- a/src/content/404.mdx
+++ /dev/null
@@ -1,9 +0,0 @@
----
-layout: page
-permalink: /404.html
----
-# Page not found
-
-Sorry, that page does not exist.
-
-<canvas id="scene"></canvas>