For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:iddilabs/openSUSE_Tumbleweed/home:iddilabs.repo
zypper refresh
zypper install inkscape-extensions-extra
For openSUSE Slowroll base run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:iddilabs/openSUSE_Slowroll_base/home:iddilabs.repo
zypper refresh
zypper install inkscape-extensions-extra
For openSUSE Factory containerfile run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:iddilabs/openSUSE_Factory_containerfile/home:iddilabs.repo
zypper refresh
zypper install inkscape-extensions-extra
For devel tools ide openSUSE Factory run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:iddilabs/devel_tools_ide_openSUSE_Factory/home:iddilabs.repo
zypper refresh
zypper install inkscape-extensions-extra
For devel tools 15.5 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:iddilabs/devel_tools_15.5/home:iddilabs.repo
zypper refresh
zypper install inkscape-extensions-extra
For devel gcc Factory run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:iddilabs/devel_gcc_Factory/home:iddilabs.repo
zypper refresh
zypper install inkscape-extensions-extra