Akka F#

akkaTypes.cs

namespace AkkaTypesCS
{
    public class GreetCs
    {
        public GreetCs(string who)
        {
            Who = who;
        }

        public string Who { get; set; }
    }
}

akkaTypes.fs

module AkkaTypes
//type Greet =
//    { Who: string }

type Greet(who:string) =
    member x.Who = who

client.fs

open Akka.Actor
open Akka.Configuration
open System
open AkkaConsoleApplication
open AkkaTypesCS

[<EntryPoint>]
let main argv =
    let config = ConfigurationFactory.ParseString(@"
        akka {
            actor {
                provider = ""Akka.Remote.RemoteActorRefProvider, Akka.Remote""
            }
            remote {
                helios.tcp {
                    port = 0 # bound to a dynamic port assigned by the OS
                    hostname = localhost
                }
            }
        }")
    let greetee = Console.ReadLine();
    use system = ActorSystem.Create("MyClient", config)

    let greeter = system.ActorSelection("akka.tcp://MyServer@localhost:8081/user/greeter")

    let msg = GreetCs(greetee)
    greeter.Tell msg
    Console.ReadLine() |> ignore
    0

server.fs

module AkkaConsoleApplication
open Akka.Actor;
open Akka.Configuration;
open System;
open AkkaTypesCS

type GreetingActor() as g =
    inherit ReceiveActor()
    do g.Receive<_>(fun (greet:GreetCs) -> printfn "Hello %s" greet.Who)

[<EntryPoint>]
let main argv =
    let config = ConfigurationFactory.ParseString(@"
        akka {
            actor {
                provider = ""Akka.Remote.RemoteActorRefProvider, Akka.Remote""
            }

            remote {
                helios.tcp {
                    port = 8081
                    hostname = localhost
                }
            }
        }
        ")
    let system = ActorSystem.Create("MyServer", config)
    let greeter = system.ActorOf<GreetingActor> "greeter"
    let name = System.Console.ReadLine()
    System.Console.ReadLine() |> ignore
    0 // return an integer exit code

You totally stole that from the repo!