For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:redwil:suckless/openSUSE_Tumbleweed/home:redwil:suckless.repo
zypper refresh
zypper install st
For openSUSE Slowroll run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:redwil:suckless/openSUSE_Slowroll/home:redwil:suckless.repo
zypper refresh
zypper install st
For 15.6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:redwil:suckless/15.6/home:redwil:suckless.repo
zypper refresh
zypper install st
For 15.4 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:redwil:suckless/15.4/home:redwil:suckless.repo
zypper refresh
zypper install st