For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:juzbun:NekoBox/openSUSE_Tumbleweed/home:juzbun:NekoBox.repo
zypper refresh
zypper install CImg
For openSUSE Factory zSystems run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:juzbun:NekoBox/openSUSE_Factory_zSystems/home:juzbun:NekoBox.repo
zypper refresh
zypper install CImg
For openSUSE Factory RISCV run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:juzbun:NekoBox/openSUSE_Factory_RISCV/home:juzbun:NekoBox.repo
zypper refresh
zypper install CImg
For openSUSE Factory PowerPC run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:juzbun:NekoBox/openSUSE_Factory_PowerPC/home:juzbun:NekoBox.repo
zypper refresh
zypper install CImg
For openSUSE Factory ARM run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:juzbun:NekoBox/openSUSE_Factory_ARM/home:juzbun:NekoBox.repo
zypper refresh
zypper install CImg
For 16.0 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:juzbun:NekoBox/16.0/home:juzbun:NekoBox.repo
zypper refresh
zypper install CImg