"openSUSE comes with an enormous amount of software in the
official repositories. But, sometimes you just need something that
isn't in the default release. Either because the package isn't
offered through the official repos, or because you want to track
software that's ahead of the current release.
"Adding a repository is a piece of cake. Just go to YaST (and
give the admin password) and then select "Software Repositories"
from the Software group. You'll see the list of configured
repositories you have already.
"Click "Add" at the bottom of the dialog. Here you'll get the
Media Type dialog, where you can start the process of adding a
repository. Usually you'll want to just add an HTTP Uniform
Resource Identifier (URI) with the address of the repo, but Zypper
supports many other types including HTTPS, FTP, CD/DVD media, NFS,
and so on."