Mac's CMS is a flat file (XML and SQLite) AJAX content management system. It focuses mainly on the "Edit In Place" editing concept. It comes with a built-in blog with moderation support, user manager section, roles manager section, and SEO/SEF URLs.
feindura is a flat file based content management system for Web designers and is ideal for small and medium Web sites. There is no need for a database, and it’s easy to integrate into your sites.
Monsti is a simple and resource-efficient CMS for private and small business sites with mostly static pages and a simple structure.
A content management system built on top of the Symfony2 and Twitter-Bootstrap frameworks.
A Linux embedded appliance framework.