Para openSUSE Tumbleweed execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:alarrosa:branches:network:sshd-service-generator/openSUSE_Tumbleweed/home:alarrosa:branches:network:sshd-service-generator.repo
zypper refresh
zypper install openssh
Para 15.6 execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:alarrosa:branches:network:sshd-service-generator/15.6/home:alarrosa:branches:network:sshd-service-generator.repo
zypper refresh
zypper install openssh