ImageViewer from home:AndnoVember:ImageViewer project
Select Your Operating System
Add repository and install manually
For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:AndnoVember:ImageViewer/openSUSE_Tumbleweed/home:AndnoVember:ImageViewer.repo zypper refresh zypper install ImageViewer
For 15.6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:AndnoVember:ImageViewer/15.6/home:AndnoVember:ImageViewer.repo zypper refresh zypper install ImageViewer