For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:wind.gmbh/openSUSE_Tumbleweed/home:wind.gmbh.repo
zypper refresh
zypper install restool
For SLE 15 SP2 Backports run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:wind.gmbh/SLE_15_SP2_Backports/home:wind.gmbh.repo
zypper refresh
zypper install restool
For SLE 15 SP1 Backports run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:wind.gmbh/SLE_15_SP1_Backports/home:wind.gmbh.repo
zypper refresh
zypper install restool
For 15.4 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:wind.gmbh/15.4/home:wind.gmbh.repo
zypper refresh
zypper install restool
For 15.3 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:wind.gmbh/15.3/home:wind.gmbh.repo
zypper refresh
zypper install restool