install-ns does checks on known operating system whether the pre-requirements are met.... but openSUSE is not included. So far, the following package managers are supported:
- apt-get (Debian family)
- yum (Red Hat family old)
- dnf (Red Hat family new)
- pkg (FreeBSD, OpenSolaris/OmniOS)
- pkg_add (OpenBSD)
- pacman (arch Linux)
- port (macOS)
Extending the list to include openSUSE/zypper should not be hard, contributions (PR) are welcome...