Ubuntu is not merely a complete operating system; it is also the center of a growing ecosystem of distributions. Some, referred to as the partner projects, work closely with and within Ubuntu. Others prefer to work on the edges of the Ubuntu project by developing official Flavors, which share the Ubuntu software sources but are created to highlight a specific selection of software or use case, such as the Ubuntu Studio project, which focuses on multimedia creation and editing. Others, like the Lubuntu project, are created by a community of users with specific desires.
Still others are created for ...