diff --git a/demo/device-collective/src/jvmMain/kotlin/DeviceCollectiveModel.kt b/demo/device-collective/src/jvmMain/kotlin/DeviceCollectiveModel.kt
index d8c64dd..510ab3e 100644
--- a/demo/device-collective/src/jvmMain/kotlin/DeviceCollectiveModel.kt
+++ b/demo/device-collective/src/jvmMain/kotlin/DeviceCollectiveModel.kt
@@ -44,7 +44,7 @@ internal fun VirtualDeviceState(
 internal class DeviceCollectiveModel(
     context: Context,
     val deviceStates: Collection<CollectiveDeviceState>,
-    val visibilityRange: Distance = 1.kilometers,
+    val visibilityRange: Distance = 0.5.kilometers,
     val radioRange: Distance = 5.kilometers,
 ) : ModelConstructor(context), PeerConnection {
 
diff --git a/demo/device-collective/src/jvmMain/kotlin/debugModel.kt b/demo/device-collective/src/jvmMain/kotlin/debugModel.kt
index d0ec384..cdca5cd 100644
--- a/demo/device-collective/src/jvmMain/kotlin/debugModel.kt
+++ b/demo/device-collective/src/jvmMain/kotlin/debugModel.kt
@@ -44,7 +44,7 @@ internal fun generateModel(
         }
     }
 
-    val model = DeviceCollectiveModel(context, devices, 0.2.kilometers)
+    val model = DeviceCollectiveModel(context, devices)
 
     return model
 }
diff --git a/demo/device-collective/src/jvmMain/kotlin/main.kt b/demo/device-collective/src/jvmMain/kotlin/main.kt
index 1292a0e..b05f038 100644
--- a/demo/device-collective/src/jvmMain/kotlin/main.kt
+++ b/demo/device-collective/src/jvmMain/kotlin/main.kt
@@ -51,6 +51,7 @@ import space.kscience.maps.coordinates.Gmc
 import space.kscience.maps.coordinates.meters
 import space.kscience.maps.features.*
 import java.nio.file.Path
+import kotlin.time.Duration.Companion.seconds
 
 
 @Composable
@@ -69,7 +70,7 @@ fun App() {
     }
 
     val collectiveModel = remember {
-        generateModel(parentContext, 60)
+        generateModel(parentContext, 100, reportInterval = 1.seconds)
     }
 
     val roster = remember {
@@ -83,12 +84,16 @@ fun App() {
 
     LaunchedEffect(collectiveModel) {
         launchCollectiveMagixServer(collectiveModel)
+
         withContext(Dispatchers.IO) {
             val magixClient = MagixEndpoint.rSocketWithWebSockets("localhost")
 
             client.complete(magixClient)
-                collectiveModel.roster.forEach { (id, config) ->
-                devices[id] = magixClient.remoteDevice(parentContext, "listener", id, id.parseAsName())
+
+            collectiveModel.roster.forEach { (id, config) ->
+                scope.launch {
+                    devices[id] = magixClient.remoteDevice(parentContext, "listener", id, id.parseAsName())
+                }
             }
         }