Package management on OpenIndiana relies on pkg(5), the Image Packaging System (IPS).
Packages are delivered by one main publisher named ‘openindiana.org’ together with one additional publisher ‘encumbered’ for multimedia codecs and other components which may be subject to software patents.
Hipster packages are built from oi-userland: introductory steps for adding or fixing a package can be found in the Docs.
SFE The Spec Files Extra project (SFE) kindly provides additional software for illumos distributions including OpenIndiana: multimedia software, web stack, LibreOffice 4.
To list existing publishers on your system:
To add a publisher to your system (requires privileges):
pkg set-publisher -g http://path/to/repo_uri publisher