xz from Geckito:SDK:Main project
Select Your Operating System
Add repository and install manually
For 15.6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/Geckito:SDK:Main/15.6/Geckito:SDK:Main.repo zypper refresh zypper install xz
For 15.5 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/Geckito:SDK:Main/15.5/Geckito:SDK:Main.repo zypper refresh zypper install xz