A stupid-simple flat file CMS. Fizl is a stupid-simple flat file CMS based on CodeIgniter. There's no database and no control panel - you can create a site structure in the same way you create a folder structure and you don't have to give up the things that make a CMS easy to use like templates an embeds.
A friendly and powerful open source CMS with an exceptionally strong foundation. With all custom fields, an easy-to-use jQuery-inspired API, and a powerful selector engine, ProcessWire will rise to any task.
RubyFrontier is a TextMate bundle implementing a Web site framework; it turns TextMate into a tool for writing and maintaining Web sites. Its architecture and philosophy are modelled after UserLand Frontier, but it is written in Ruby.