[throwup238]

You aren't missing anything except that Catalyst is included in the Tailwind UI lifetime license that many HN readers bought years ago so this is likely from an "insider" email campaign, rather than a marketing landing page for a standalone product. It's not meant for general consumption yet.

[hobofan]

Yeah, I think the post link should have been their announcement post, which gives some more context: https://tailwindcss.com/blog/introducing-catalyst