For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:lonnie44:suse/openSUSE_Tumbleweed/home:lonnie44:suse.repo
zypper refresh
zypper install xmrig
For 15.6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:lonnie44:suse/15.6/home:lonnie44:suse.repo
zypper refresh
zypper install xmrig
For 15.5 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:lonnie44:suse/15.5/home:lonnie44:suse.repo
zypper refresh
zypper install xmrig