xorg-x11-server from home:TrackMen:x-server project
Select Your Operating System
Add repository and install manually
For 15.3 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:TrackMen:x-server/15.3/home:TrackMen:x-server.repo zypper refresh zypper install xorg-x11-server