For standard run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:tsaupe:branches:Base:System:systemd-openqa-v255/standard/home:tsaupe:branches:Base:System:systemd-openqa-v255.repo
zypper refresh
zypper install systemd-journal-remote
For openSUSE Factory run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:tsaupe:branches:Base:System:systemd-openqa-v255/openSUSE_Factory/home:tsaupe:branches:Base:System:systemd-openqa-v255.repo
zypper refresh
zypper install systemd-journal-remote