feat: a few design improvements

app/hackathons/page.tsx

@@ -7,7 +7,6 @@ import {
   ArrowRight,
   Users,
   Star,
-  Clock,
   MapPin,
   Eye,
   Target,
@@ -473,7 +472,7 @@ function TerminalShowcase() {
             Every agent action, in real time.
           </h2>
           <p className="font-serif text-lg text-muted-foreground leading-relaxed">
-            Greywall&apos;s proxy captures every request, file access, and command your AI agent executes. This is what you&apos;ll be building on.
+            <a href="https://github.com/GreyhavenHQ/greywall" target="_blank" rel="noopener noreferrer" className="text-primary hover:text-primary/80 transition-colors underline underline-offset-2">Greywall</a>&apos;s proxy captures every request, file access, and command your AI agent executes. This is what you&apos;ll be building on.
           </p>
         </div>
         <div className="animate-float [animation-duration:6s]">