Another issue is that Dolphin does not create/display thumbnails and reports: kf.service.services: KServiceTypeTrader: serviceType "ThumbCreator" not found I packaged kdegraphics-thumbnailers. But adding that didn't make a difference. Have you had a go at this phodina? (define-public kdegraphics-thumbnailers   (package     (name "kdegraphics-thumbnailers")     (version "22.08.2")     (source      (origin        (method url-fetch)        (uri (string-append "mirror://kde/stable/release-service/" version                            "/src/" name "-" version ".tar.xz"))        (sha256         (base32 "1ppgc5yh23fgfkwzjirrkv5w7y23xlpf3ijgaw8wgm7kbm61i5y0"))))     (build-system cmake-build-system)     (native-inputs      (list extra-cmake-modules))     (inputs      (list karchive            kdegraphics-mobipocket            ki18n            kio            libkexiv2            qtbase-5))     (home-page "")     (synopsis "")     (description "")     (license #f)))