An interesting new fediverse server project has just launched, Postmarks. It is a single-user social bookmarking service, that you can easily self-host on Glitch. The basis is a straight-forward bookmarking service; you add a link, you optionally add some tags, and you have a nice visual overview of all your bookmarks that is public and easily shareable. An example of that can be seen here. The added value is in making it adding ActivityPub support. This way, you can follow the account on other platforms such as Mastodon. If you do this, you get a post in your feed every time a new bookmark is added, which looks like this. Furthermore, you can even comment on the bookmarks as well, also from other fediverse sites.