For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:buschmann23:Cutelyst:devel:apps/openSUSE_Tumbleweed/home:buschmann23:Cutelyst:devel:apps.repo
zypper refresh
zypper install skaffari
For 15.5 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:buschmann23:Cutelyst:devel:apps/15.5/home:buschmann23:Cutelyst:devel:apps.repo
zypper refresh
zypper install skaffari
For 15.4 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:buschmann23:Cutelyst:devel:apps/15.4/home:buschmann23:Cutelyst:devel:apps.repo
zypper refresh
zypper install skaffari