A smart, static site generator that automatically manages dependencies to achieve blazing build times with minimal cognitive load. Only new and changed files, and files upstream of a changed dependency are processed. Renders markdown or embedded-Ruby (Erb-like) content as HTML. Supports templates (embedded & layout), which may be included within content sources or other templates. Document metadata may me added using a plain-text preamble of key-value pairs. Generates a complete website that can be served by the built-in WEBrick server.