jellyfin-plugin-bookshelf VS tachiyomi

In case any value of the opf file is not parsed, you could create an issue about it here: https://github.com/jellyfin/jellyfin-plugin-bookshelf

You may want to create an issue about the title sort being ignored here. Thought I can't find anything related to a sort title in the specification. Is it perhaps something Calibre or some other tagging software added? Do you know how it looks like?

I haven't tried it out yet, but apparently Jellyfin has a book plugin that does books, comics, and audiobooks: https://github.com/jellyfin/jellyfin-plugin-bookshelf

E.g. metadata for books is handled in the bookshelf plugin (C#). You could look at already existing implementations (e.g. ComicBookInfo or the Epub provider for some easy things) and then implement your own. There are some open issues about missing book providers, but I would start with a file based provider first as look easier than online metadata providers.

Tachiyomi[0] is a FOSS comic reader app for Android which has support for extensions to source comics from different sites which are unrelated to Tachiyomi

Tachiyomi already removed their extension list which contained both unofficial and official sources for comics[1]

[0] https://github.com/tachiyomiorg/tachiyomi

if you are on android: https://github.com/tachiyomiorg/tachiyomi then google for which extensions to look for marvel wise, they have most/all as i read them before through there.

I think you are right about it being a cache issue. I wonder if it is related to this: https://github.com/tachiyomiorg/tachiyomi/issues/8827

I don't use it, but if you're on android look into downloading Tachiyomi. Lots of people recommend it on this subreddit and it looks pretty customizable. It can pull from the different manga websites out there I believe.

Install from official site: https://tachiyomi.org