This is an open source content management system: rapyd-cms, built on top of a smart a linghtweight PHP5 framework: rapyd-framework.

This is still in beta version, a proof of concept for a simple but powerful CMS with:

• HMVC Hierarchical-Model-View-Controller architecture
• Modules support + cascade resource loading (you can extend/override each application entity)
• Zero installation + integrated file editor, it need only PHP 5.2 and pdo-sqlite3 support
• Not rigid db structure (like other cms), you can edit/design db "from within" the cms