For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:seilerphilipp/openSUSE_Tumbleweed/home:seilerphilipp.repo
zypper refresh
zypper install catfish
For 16.0 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:seilerphilipp/16.0/home:seilerphilipp.repo
zypper refresh
zypper install catfish
For 15.6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:seilerphilipp/15.6/home:seilerphilipp.repo
zypper refresh
zypper install catfish
For 15.5 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:seilerphilipp/15.5/home:seilerphilipp.repo
zypper refresh
zypper install catfish