OpenIndiana is a distribution developed and maintained by a community of volunteers. If you are interested in contributing to the project and to illumos, there are many ways to get involved.

The project provides resources from which you can get started, including our documentation, mailing lists and IRC channel. Development servers are available, as well as development package repositories for updating to the latest builds, and also Git repositories for checking out the latest source code.

Code repositories hosted on GitHub:

illumos-gate	illumos repository containing the core Operating System: kernel, userland, networking, …
nimbus	Gnome GTK2/GTK3 theme
nwam-manager	Network connection manager for Gnome
oi-userland	Unified build system for creating packages and local repositories
pkg5	Package management system
slim_source	Installer for Live, Text and Network images
sysding	Replacement for sysidtool, a tool for system configuration
time-slider	Graphical interface for managing ZFS snapshots and backups

Do not forget to visit our parent project at illumos.org! You will find oi-dev mailing list useful if you want to contribute to OpenIndiana. Feel free to join and get any help you feel you need to work with the project!