GhostBSD is a user-friendly desktop operating system based on TrueOS (which is, in turn, based on FreeBSD's development branch). The project's goal is to create an easy-to-use and familiar workspace that can be used at home or office and for data rescue. GhostBSD supports a number of popular lightweight desktop environments, including MATE, Xfce. It also provides FreeBSD's package management system, LibreOffice, LibreCAD, and Eclipse/Anjuta development environments for C, C++, Java, JavaScript, Jala and Python.
http://ghostbsd.org/