amatwkgs [1] filed a deletion request for kobo-desktop [2]: Delete reason: Software abandoned by upstream From https://www.mobileread.com/forums/showthread.php?t=82378 (#1) and https://www.mobileread.com/forums/showthread.php?t=82378&page=6 (#76 in the same thread), I believe that this is a prototype developed for Linux by Kobo long time ago, but then there was no update. The .deb package is a binary package, not a source package. It is built against old libraries. Users must install outdated libraries for the software to work. On the official website (https://www.kobo.com), there is no download link for a Linux version. I believe that the upstream has abandoned the development. [1] https://aur.archlinux.org/account/amatwkgs/ [2] https://aur.archlinux.org/pkgbase/kobo-desktop/