For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:ph03nix:branches:network/openSUSE_Tumbleweed/home:ph03nix:branches:network.repo
zypper refresh
zypper install netatalk
For 15.6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:ph03nix:branches:network/15.6/home:ph03nix:branches:network.repo
zypper refresh
zypper install netatalk
For 15.5 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:ph03nix:branches:network/15.5/home:ph03nix:branches:network.repo
zypper refresh
zypper install netatalk