For openSUSE Slowroll run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:sbahling:audio/openSUSE_Slowroll/home:sbahling:audio.repo
zypper refresh
zypper install librespot
For openSUSE Factory run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:sbahling:audio/openSUSE_Factory/home:sbahling:audio.repo
zypper refresh
zypper install librespot
For 15.6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:sbahling:audio/15.6/home:sbahling:audio.repo
zypper refresh
zypper install librespot