I’ll throw another recommendation behind Karakeep. The fact I can share a page fromy mobile browser or use a browser extension on a laptop/desktop is excellent.
Another great thing for me is the oidc support so I can log in without passwords and rely on my Pocket ID instance and log in using a passkey. (Authelia, Authentic, Keycloak and similar identity providers would work too)
I’m quite happy with audiobookshelf. Sometimes I’m in the mood to listen to a book, sometimes I fancy a podcast and audiobookshelf let’s me do both with little fuss. (and it has oidc support for authentication which means I now authenticate with my single sign on solution)