systemd-portable from home:fbui:systemd:v256 project
Select Your Operating System
Add repository and install manually
For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:fbui:systemd:v256/openSUSE_Tumbleweed/home:fbui:systemd:v256.repo zypper refresh zypper install systemd-portable