Similar story here. Readarr (two instances, one for ebooks, another for audio). Calibre server with a watchdir to add books from libgen/elsewhere, and organising stuff. Calibre-web because trying to use calibre server on a phone is painful. WebDAV connection through phone app (Moon+) as a backup (LAN only).

Oh, and Audiobookshelf for the audiobooks, but I generally prefer reading