• Modify /etc/os-release with the name of the product you want. You have to restart cockpit after doing this.
• Create directory /usr/share/cockpit/branding/ eg.

      # cp -rp /usr/share/cockpit/branding/fedora /usr/share/cockpit/branding/moximo
     

• Modify files under /usr/share/cockpit/branding/moximo to suit your needs