For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/network:vpn/openSUSE_Tumbleweed/network:vpn.repo
zypper refresh
zypper install python-proton-vpn-api-core
For openSUSE Factory ARM run the following as root:
zypper addrepo https://download.opensuse.org/repositories/network:vpn/openSUSE_Factory_ARM/network:vpn.repo
zypper refresh
zypper install python-proton-vpn-api-core
For openSUSE Factory run the following as root:
zypper addrepo https://download.opensuse.org/repositories/network:vpn/openSUSE_Factory/network:vpn.repo
zypper refresh
zypper install python-proton-vpn-api-core