gistfile1.rb

## App/Site

application :FarmNoises do
  layout_for "text/html" => Waves::Renderers::Hoshi, :template => "templates/html/layout.meh"
end

## Resource

resource :Moo do
  renderer_for "text/x-markdown" => lambda {|content| "<div>" + Markdown.render content "</div>" }
  renderer_for "text/html" => Waves::Renderers::Hoshi, :template_location => "some pathspec or something"
  
  viewable {
    representation "text/plain", "text/x-markdown" do
      # The latter just designates the actual Content-Type
      response_is "text/x-markdown" => "text/html" do
        do_something_returning_string_in_markdown
      end
    end
  }
end

## So, effectively something like:
HoshiRenderer.new(layout).process(MarkdownRenderer.new.call(content_block.call()))