>>5737348It's easy, just download the exe from:
https://calibre-ebook.com/ and install it, that's all you need to do for a basic setup.
Then presuming you store you doujinshi / hentai collection as archive files you just drag and drop them into calibre which is designed for handling ebook files but can handle cbz without issue. Then you just label the files with the fields you care about similarly to how you would with a music player application like iTunes.
calibre will title the book whatever the name of the archive is, so normally this just means manually adding artist / circle and language info which if you sort by artists is quick to do as you can select and label multiple rows.
Calibre doesn't support any features to auto-tag hentai, but depending on how autismo you are about detail you might just want to label everything yourself.
Once my entire collection was tagged with basic info, i.e. author, circle, language, type, title, I then added the additional character, parody and extag fields, then searched for each gallery on exhentai and used a script to use ehentai api to grab all the gallery tags, delimit them with my chosen delimiter and prepend a namespace to the front of the tag so I could put them all in one column.
Calibre requires a real investment of time if you want to achieve a full tagged collection, but I wouldn't trust any application to auto-tag my collection anyway.