For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/Cloud:Seafile/openSUSE_Tumbleweed/Cloud:Seafile.repo
zypper refresh
zypper install seafile
For openSUSE Factory ARM run the following as root:
zypper addrepo https://download.opensuse.org/repositories/Cloud:Seafile/openSUSE_Factory_ARM/Cloud:Seafile.repo
zypper refresh
zypper install seafile
For 15.5 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/Cloud:Seafile/15.5/Cloud:Seafile.repo
zypper refresh
zypper install seafile
For 15.4 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/Cloud:Seafile/15.4/Cloud:Seafile.repo
zypper refresh
zypper install seafile
For 15.3 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/Cloud:Seafile/15.3/Cloud:Seafile.repo
zypper refresh
zypper install seafile