For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:PunisherHD:Trinity:unstable/openSUSE_Tumbleweed/home:PunisherHD:Trinity:unstable.repo
zypper refresh
zypper install trinity-tdm
For openSUSE Factory ARM run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:PunisherHD:Trinity:unstable/openSUSE_Factory_ARM/home:PunisherHD:Trinity:unstable.repo
zypper refresh
zypper install trinity-tdm
For 15.4 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:PunisherHD:Trinity:unstable/15.4/home:PunisherHD:Trinity:unstable.repo
zypper refresh
zypper install trinity-tdm