For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:pgajdos/openSUSE_Tumbleweed/home:pgajdos.repo
zypper refresh
zypper install lv2
For 15.6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:pgajdos/15.6/home:pgajdos.repo
zypper refresh
zypper install lv2
For 15.5 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:pgajdos/15.5/home:pgajdos.repo
zypper refresh
zypper install lv2