You can create a typed.ActorSystem and from the guardian typed actor you
can create an untyped actor with ActorContext's actorOf. Then you have an
untyped actor and access to its system with context.system, which can be
used for Akka streams.
I don't see a way to do it the other way around,
How do I mix typed and untyped actors ? As I understood I have to specify
main actor when I create instance of ActorSystem like this
val system: akka.typed.ActorSystem[Start] = akka.typed.ActorSystem(main,
Props(mainBehaviour))
On the other hand I use akka-http which is initialized like
