Until a year ago, it was either Calibre/CalibreWeb, Audiobookshelf, or a few alternative readers heavily focused on comics.
Late last year, a vibe-coded app called BookLore appeared and basically brought over everything Calibre did but with much better UX and e-reader integration. The original dev crashed out[0], but the community picked up the project and started reigning in the worst of the slop and maintaining it as Grimmory [1]. It's pretty damn good.
There is also a book fetcher called Shelfmark [2] that integrates with Calibre, ABS, or Grimmory.
[0] and he _might_ be currently trying to push another even more vibe-coded competitor, but that's unconfirmed drama
Late last year, a vibe-coded app called BookLore appeared and basically brought over everything Calibre did but with much better UX and e-reader integration. The original dev crashed out[0], but the community picked up the project and started reigning in the worst of the slop and maintaining it as Grimmory [1]. It's pretty damn good.
There is also a book fetcher called Shelfmark [2] that integrates with Calibre, ABS, or Grimmory.
[0] and he _might_ be currently trying to push another even more vibe-coded competitor, but that's unconfirmed drama
[1] https://github.com/grimmory-tools/grimmory
[2] https://github.com/calibrain/shelfmark