The BSD Daemon, or as I call him, the Berkeley System Daemon. (BSD actually stands for Berkeley Software Distribution) Berylium.org runs on, and recommends, FreeBSD.
With a Berylium server and a modern web browser, an individual or small team can quickly create, update, and maintain an extensive cutting-edge website, without having to think in HTML, manage templates, update indexes, or create RDF metadata.
Berylium is an open source Content Management System (CMS).