Nice work!

In the early days a global feed serves more as a tutorial for users as opposed to a feed you would visit daily.

You need to help people understand the 3 modes (and personas) of social bookmarking.... organize, share, and discover. Until there is critical mass, you should use the homepage to create a juxtaposition of users bookmarks and other's bookmarks. They need to see the relationship between them. Help people see the value from both sides.

note... nobody really has anyone's npub memorized, so the "View bookmarks by npub" doesn't really serve much purpose.

also, it's not clear how global is sorted and the sort order seems random with new content.