Для openSUSE Tumbleweed запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/home:illuusio:nodejs-packages/openSUSE_Tumbleweed/home:illuusio:nodejs-packages.repo
zypper refresh
zypper install cockpit
Для 15.6 запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/home:illuusio:nodejs-packages/15.6/home:illuusio:nodejs-packages.repo
zypper refresh
zypper install cockpit
Для 15.5 запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/home:illuusio:nodejs-packages/15.5/home:illuusio:nodejs-packages.repo
zypper refresh
zypper install cockpit
Для 15.4 запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/home:illuusio:nodejs-packages/15.4/home:illuusio:nodejs-packages.repo
zypper refresh
zypper install cockpit