camping.rb

#!ruby
# i'm sure this needs a require line
Camping.goes :Nuts
module Nuts::Controllers
  class Index < R '/'
    def get
      @t = Time.now.to_s
      render :sundial
    end
  end
end
module Nuts::Views
  def layout
    html do
      head do
        title { "Nuts And GORP" }
      end
      body { self << yield }
    end
  end
  def sundial
    p "The current time is: #{@t}"
  end
end

sinatra.rb

#!ruby
require "sinatra"
get '/' do
  @t = Time.now.to_s
  haml :sundial
end
use_in_file_templates!
__END__
@@ layout
%html
  %head
    %title
      Nuts And GORP
  %body
    yield
@@ sundial
%p= "The current time is: #{@t}"