Rack routing. Updated to show wildcarding.

01E.ru

map "/.conference" do;      run Mu::Conference end
map "/.documentation" do;   run Mu::Documentation end
map "/.development" do;     run Mu::Development end
map "/.sources" do;         run Mu::Sourcing end

development.rb

class Mu    
  class Development < Ma #de pulls in Sinatra::Base and performs global configurations that apply to all requests.
    
    register Sinatra::MultiRoute
    
    before do; Mu.protected! end
      
    get '/', '/news' do
      ...
    end
      
    get '/repositories', '/code' do
      ...
    end
    
    get "/*" do
      #de ... not found, return error 404
      404
    end
    
  end
end

I didn't catch you comment here until now @seancribbs. Thanks for following up on this!