SUMMARY Currently KDE theme kits fail to install because SDDM themes cannot be installed on OSTree systems (Fedora Kinoite, OpenSuse microOS). https://github.com/Lunarequest/sddm2rpm https://crates.io/sddm2rpm A way around this is sddm2rpm, a rust tool to convert sddm archives (now all types supported) to rpms one can layer with rpm-ostree. PROPOSED SOLUTION Add sddm2rpm to Dolphin, allowing to deal with sddm themes seperately, converting them to rpms and use the rpm-ostree backend to layer them. Or fix SDDM to use /etc of course, to avoid this issue. Currently KDE themes are "broken" because of this, at least the ease of using themepacks. SOFTWARE/OS VERSIONS Operating System: Fedora Linux 37 KDE Plasma Version: 5.27.2 KDE Frameworks Version: 5.103.0 Qt Version: 5.15.8
Of course you would have to ask the developer if the is okay with that. The tool currently is best in CLI, works great there
I think solving this through a writable directory in sddm is a better approach