remove special characters in sluggification

website/agb/src/app/tapir/dpl/page.tsx

@@ -6,7 +6,7 @@ export const metadata: Metadata = {
   title: "Dungeon Puzzler Redirect",
 };
 
-const REDIRECT_TO = "/showcase/the-dungeon-puzzler's-lament";
+const REDIRECT_TO = "/showcase/the-dungeon-puzzlers-lament";
 
 export default function DplRedirectPage() {
   redirect(REDIRECT_TO);

website/agb/src/sluggify.ts

@@ -1,3 +1,7 @@
 export function slugify(x: string) {
-  return x.toLowerCase().split(" ").join("-");
+  return x
+    .toLowerCase()
+    .split(" ")
+    .join("-")
+    .replace(/[^a-zA-Z0-9\-]/, "");
 }