For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/server:dns/openSUSE_Tumbleweed/server:dns.repo
zypper refresh
zypper install dnscrypt-proxy
For openSUSE Factory ARM run the following as root:
zypper addrepo https://download.opensuse.org/repositories/server:dns/openSUSE_Factory_ARM/server:dns.repo
zypper refresh
zypper install dnscrypt-proxy
For 16.0 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/server:dns/16.0/server:dns.repo
zypper refresh
zypper install dnscrypt-proxy
For 15.6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/server:dns/15.6/server:dns.repo
zypper refresh
zypper install dnscrypt-proxy