FreeNAS is a powerful open source implementation of a network-attached storage (NAS) server – file-level computer data storage connected to your network. FreeNAS is easy to manage, and because it’s free it can serve files for small- to mid-sized companies without straining their software budgets or act as a media and storage server for a home network – a great way to make use of any aging Windows XP boxes lying around.
FreeNAS supports a powerful plugin architecture that lets you expand its default feature set to better meet your demands. You’ll find plugins for Firefly media server, CouchPotato movie server, and more. The plugins are in 32-bit or 64-bit PBI (push button installer) files on the FreeNAS project’s website. PBI provides a native FreeNAS graphical installation wrapper for software ported to FreeBSD, allowing you to automate installation.
Check out the full article here: http://www.openlogic.com/wazi/bid/345617/Expand-FreeNAS-with-plugins