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