For openSUSE Slowroll run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:svalx/openSUSE_Slowroll/home:svalx.repo
zypper refresh
zypper install mt-st
For openSUSE Factory run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:svalx/openSUSE_Factory/home:svalx.repo
zypper refresh
zypper install mt-st
For 15.6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:svalx/15.6/home:svalx.repo
zypper refresh
zypper install mt-st
For 15.5 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:svalx/15.5/home:svalx.repo
zypper refresh
zypper install mt-st