For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:simotek:base/openSUSE_Tumbleweed/home:simotek:base.repo
zypper refresh
zypper install NetworkManager-openvpn
For openSUSE Factory zSystems run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:simotek:base/openSUSE_Factory_zSystems/home:simotek:base.repo
zypper refresh
zypper install NetworkManager-openvpn
For openSUSE Factory PowerPC run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:simotek:base/openSUSE_Factory_PowerPC/home:simotek:base.repo
zypper refresh
zypper install NetworkManager-openvpn
For openSUSE Factory ARM run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:simotek:base/openSUSE_Factory_ARM/home:simotek:base.repo
zypper refresh
zypper install NetworkManager-openvpn
For 15.4 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:simotek:base/15.4/home:simotek:base.repo
zypper refresh
zypper install NetworkManager-openvpn