Play with control

Main.scala

object Main extends App {

  // You can retrieve the application configuration from any place
  val configuration = Configuration("conf/my-app.conf")

  // You instantiate your controllers with their required configuration
  val application = new MyAbstractController(configuration) with SomeEventualMixin

  // You pass your controllers as parameters to a router factory
  val router = Router("conf/routes", application)
  
  // You finally create the server
  createServer(router, configuration)

}

Main2.scala

object Main extends App {

  // For convenience, the createServer method could have default values for its parameters
  // so the line below would be equivalent to the following:
  //     createServer(Router("conf/routes"), Configuration("conf/application.conf"))
  createServer()

}

Main3.scala

// For even more convenience, we could have a PlayApp trait which body would contain the following:
//    createServer()
object Main extends PlayApp

... and this approach wouldn't prevent current integrated approach where "basic" users wouldn't care about it.

This is awesome.