For standard run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:tsaupe:branches:Base:System:systemd-openqa-v253/standard/home:tsaupe:branches:Base:System:systemd-openqa-v253.repo
zypper refresh
zypper install systemd-journal-remote
For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:tsaupe:branches:Base:System:systemd-openqa-v253/openSUSE_Tumbleweed/home:tsaupe:branches:Base:System:systemd-openqa-v253.repo
zypper refresh
zypper install systemd-journal-remote