Fizl is made to get stuff up quick and to take the pain in the assitude that keep us from making file-based sites. Here are the elevator pitch notes:
Inside the "content" folder, just put your HTML, markdown, or textile files in the structure you want your site to be in. That’s it. There is, of course, a whole lot more to it than that, but that’s the basic idea. This allows you to create quickly and easily.
Embed pieces of content and even pass variables to them. This content also exists in the file system. Templates allow you to template your home page, all sub pages, or specific directories in your file structure.
Like Markdown or Textile? .md and .textile files are automatically parsed, and you can use the format plugin to parse specific blocks of text.
You can set the Fizl configs, and also easily create your own.
Fizl comes with a plugin system to easily create navs, show assets, list files, format text, and show Tweets. Everything use the filesystem.