A multi-platform ebook reader which supports popular ebook formats:
ePub, fb2, mobi, rtf, html, plain text, and a lot of other formats.
It provides access to popular network libraries that contain a large
set of ebooks. Download books for free or for a fee. Add your own
catalog. Highly customizable. Choose colors, fonts, page turning
animations, dictionaries, bookmarks, etc. to make reading as
convenient as you want.
There is no official package available for openSUSE Leap 15.4