appstream-glib from openSUSE:ALP:Experimental:Slowroll:Base project
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Add repository and install manually
For standard run the following as root:
zypper addrepo https://download.opensuse.org/repositories/openSUSE:ALP:Experimental:Slowroll:Base/standard/openSUSE:ALP:Experimental:Slowroll:Base.repo zypper refresh zypper install appstream-glib