For openSUSE Factory PowerPC run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:ptrommler:branches:home:darix:apps/openSUSE_Factory_PowerPC/home:ptrommler:branches:home:darix:apps.repo
zypper refresh
zypper install ruby3.3
For 15.6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:ptrommler:branches:home:darix:apps/15.6/home:ptrommler:branches:home:darix:apps.repo
zypper refresh
zypper install ruby3.3
For 15.5 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:ptrommler:branches:home:darix:apps/15.5/home:ptrommler:branches:home:darix:apps.repo
zypper refresh
zypper install ruby3.3