libu2f-server from home:Simmphonie:yubico 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:Simmphonie:yubico/openSUSE_Tumbleweed/home:Simmphonie:yubico.repo zypper refresh zypper install libu2f-server