For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:Laikulo:branches:home:hgraeber/openSUSE_Tumbleweed/home:Laikulo:branches:home:hgraeber.repo
zypper refresh
zypper install unifi
For 15.6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:Laikulo:branches:home:hgraeber/15.6/home:Laikulo:branches:home:hgraeber.repo
zypper refresh
zypper install unifi
For 15.5 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:Laikulo:branches:home:hgraeber/15.5/home:Laikulo:branches:home:hgraeber.repo
zypper refresh
zypper install unifi