For openSUSE Leap 15.6 KF5 KDE Extra run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:khnazile:kritastuff/openSUSE_Leap_15.6_KF5_KDE_Extra/home:khnazile:kritastuff.repo
zypper refresh
zypper install gmic
For openSUSE Leap 15.6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:khnazile:kritastuff/openSUSE_Leap_15.6/home:khnazile:kritastuff.repo
zypper refresh
zypper install gmic
For openSUSE Leap 15.5 KF5 KDE Extra run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:khnazile:kritastuff/openSUSE_Leap_15.5_KF5_KDE_Extra/home:khnazile:kritastuff.repo
zypper refresh
zypper install gmic
For openSUSE Leap 15.5 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:khnazile:kritastuff/openSUSE_Leap_15.5/home:khnazile:kritastuff.repo
zypper refresh
zypper install gmic