Very nice and transparent update. I appreciate it!

zero tracking or personal data collection

There is Vercel tracking I found right in the homepage source:

 <script defer src="/_vercel/insights/script.js"></script>  

Also, by using Firebase resources, firebase will be logging the IP of your visitors/users every time they ciick and Firebase is owned by Google.

Nice to make stuff to share but a platform like Vercel is unfortunately not a safe platform for privacy.