diff --git a/PsiMac/Assets.xcassets/Connected.imageset/5.png b/PsiMac/Assets.xcassets/Connected.imageset/5.png
new file mode 100644
index 0000000..8f99fed
Binary files /dev/null and b/PsiMac/Assets.xcassets/Connected.imageset/5.png differ
diff --git a/PsiMac/Assets.xcassets/Connected.imageset/Contents.json b/PsiMac/Assets.xcassets/Connected.imageset/Contents.json
new file mode 100644
index 0000000..90ec8dd
--- /dev/null
+++ b/PsiMac/Assets.xcassets/Connected.imageset/Contents.json
@@ -0,0 +1,21 @@
+{
+  "images" : [
+    {
+      "filename" : "5.png",
+      "idiom" : "universal",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}
diff --git a/PsiMac/Assets.xcassets/Disconnected.imageset/4.png b/PsiMac/Assets.xcassets/Disconnected.imageset/4.png
new file mode 100644
index 0000000..c274fe7
Binary files /dev/null and b/PsiMac/Assets.xcassets/Disconnected.imageset/4.png differ
diff --git a/PsiMac/Assets.xcassets/Disconnected.imageset/Contents.json b/PsiMac/Assets.xcassets/Disconnected.imageset/Contents.json
new file mode 100644
index 0000000..6ebd06d
--- /dev/null
+++ b/PsiMac/Assets.xcassets/Disconnected.imageset/Contents.json
@@ -0,0 +1,21 @@
+{
+  "images" : [
+    {
+      "filename" : "4.png",
+      "idiom" : "universal",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}
diff --git a/PsiMac/PsiMacApp.swift b/PsiMac/PsiMacApp.swift
index 8718a25..41c0087 100644
--- a/PsiMac/PsiMacApp.swift
+++ b/PsiMac/PsiMacApp.swift
@@ -21,11 +21,21 @@ import SwiftUI
 @main
 struct PsiMacApp: App {
 
-    let server = Server()
+    @State var server = Server()
 
     var body: some Scene {
-        WindowGroup {
-            ContentView()
+
+        MenuBarExtra {
+            Button("Connect") {
+
+            }
+        } label: {
+            if server.isConnected {
+                Image("Connected")
+            } else {
+                Image("Disconnected")
+            }
         }
+
     }
 }
diff --git a/PsiMac/Server.swift b/PsiMac/Server.swift
index 1c91ec2..4f9b46c 100644
--- a/PsiMac/Server.swift
+++ b/PsiMac/Server.swift
@@ -18,30 +18,32 @@
 
 import Foundation
 
-struct Server {
+@Observable
+class Server {
 
-    func threadEntryPoint() {
-
-        let arguments = ["ncpd", "-d", "-s", "/dev/tty.usbserial-A91MGK6M", "-b", "115200", "-v", "nl"]
+    var isConnected: Bool = false
 
-        let argc = Int32(arguments.count)
-        var argv: [UnsafeMutablePointer<CChar>?] = arguments.map { strdup($0) }
-        argv.append(nil)  // Null-terminate the array
+    func threadEntryPoint() {
 
-        // Convert the array to an UnsafeMutablePointer<UnsafeMutablePointer<CChar>?>
-        let argvPointer = UnsafeMutablePointer<UnsafeMutablePointer<CChar>?>.allocate(capacity: argv.count)
-        argvPointer.initialize(from: &argv, count: argv.count)
+        let context = Unmanaged.passRetained(self).toOpaque()
+        let callback: statusCallback_t = { context, status in
+            guard let context else {
+                return
+            }
+            print("status = \(status)")
+            let server = Unmanaged<Server>.fromOpaque(context).takeUnretainedValue()
+            DispatchQueue.main.sync {
+                server.isConnected = status == 1 ? true : false
+            }
+        }
 
-        // Call the C function
-        let result = run(argc, argvPointer)
-        print(result)
+        let device = "/dev/tty.usbserial-AL00AYCG"
+//        let device = "/dev/tty.usbserial-A91MGK6M"
 
-        // Free the memory allocated for the C strings
-        for arg in argv {
-            free(arg)
-        }
-        argvPointer.deallocate()
+//        let log: UInt16 = 1 | 2 | 4 | 8 | 18 | 32 | 64
+        let log: UInt16 = 0
 
+        ncpd(7501, 115200, "127.0.0.1", device, log, callback, context)
     }
 
     init() {
diff --git a/dependencies/plptools b/dependencies/plptools
index 6cafcb2..24b62e6 160000
--- a/dependencies/plptools
+++ b/dependencies/plptools
@@ -1 +1 @@
-Subproject commit 6cafcb2c0dd84d661d743859d0e0c8ca8f6e0580
+Subproject commit 24b62e6fd404048112b809f1beb88ed9a129a9cb