unbound from home:susnux:branches:server:dns project
Select Your Operating System
Add repository and install manually
For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:susnux:branches:server:dns/openSUSE_Tumbleweed/home:susnux:branches:server:dns.repo zypper refresh zypper install unbound