For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:agraul:branches:systemsmanagement:saltstack:testing/openSUSE_Tumbleweed/home:agraul:branches:systemsmanagement:saltstack:testing.repo
zypper refresh
zypper install salt
For openSUSE Factory ARM run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:agraul:branches:systemsmanagement:saltstack:testing/openSUSE_Factory_ARM/home:agraul:branches:systemsmanagement:saltstack:testing.repo
zypper refresh
zypper install salt
For 15.4 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:agraul:branches:systemsmanagement:saltstack:testing/15.4/home:agraul:branches:systemsmanagement:saltstack:testing.repo
zypper refresh
zypper install salt