For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:nkrapp/openSUSE_Tumbleweed/home:nkrapp.repo
zypper refresh
zypper install framework_tool
For openSUSE Slowroll run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:nkrapp/openSUSE_Slowroll/home:nkrapp.repo
zypper refresh
zypper install framework_tool
For openSUSE Factory run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:nkrapp/openSUSE_Factory/home:nkrapp.repo
zypper refresh
zypper install framework_tool
For 15.6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:nkrapp/15.6/home:nkrapp.repo
zypper refresh
zypper install framework_tool
For 15.5 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:nkrapp/15.5/home:nkrapp.repo
zypper refresh
zypper install framework_tool