diff --git a/demo/car/src/main/kotlin/ru/mipt/npm/controls/demo/car/MagixVirtualCar.kt b/demo/car/src/main/kotlin/ru/mipt/npm/controls/demo/car/MagixVirtualCar.kt
index e56ddf5..3d0c97c 100644
--- a/demo/car/src/main/kotlin/ru/mipt/npm/controls/demo/car/MagixVirtualCar.kt
+++ b/demo/car/src/main/kotlin/ru/mipt/npm/controls/demo/car/MagixVirtualCar.kt
@@ -4,21 +4,18 @@ import kotlinx.coroutines.flow.collect
 import kotlinx.coroutines.launch
 import ru.mipt.npm.controls.api.DeviceMessage
 import ru.mipt.npm.controls.api.PropertyChangedMessage
-import ru.mipt.npm.controls.spec.DeviceBySpec
-import ru.mipt.npm.controls.spec.doRecurring
 import ru.mipt.npm.magix.api.MagixEndpoint
+import ru.mipt.npm.magix.rsocket.rSocketWithWebSockets
 import space.kscience.dataforge.context.Context
 import space.kscience.dataforge.context.Factory
 import space.kscience.dataforge.meta.Meta
+import space.kscience.dataforge.meta.get
+import space.kscience.dataforge.meta.string
 import space.kscience.dataforge.names.Name
-import kotlin.time.Duration
 import kotlin.time.ExperimentalTime
 
-class MagixVirtualCar(private val magixEndpoint: MagixEndpoint<DeviceMessage>, context: Context, meta: Meta)
-    : DeviceBySpec<MagixVirtualCar>(IVirtualCar, context, meta), IVirtualCar {
-    override var speedState: Vector2D = Vector2D()
-    override var locationState: Vector2D = Vector2D()
-    override var accelerationState: Vector2D = Vector2D()
+class MagixVirtualCar(context: Context, meta: Meta)
+    : VirtualCar(context, meta) {
 
     private suspend fun MagixEndpoint<DeviceMessage>.startMagixVirtualCarUpdate() {
         launch {
@@ -26,9 +23,7 @@ class MagixVirtualCar(private val magixEndpoint: MagixEndpoint<DeviceMessage>, c
                 (magix.payload as? PropertyChangedMessage)?.let { message ->
                     if (message.sourceDevice == Name.parse("virtual-car")) {
                         when (message.property) {
-                            "speed" -> speedState = Vector2D.metaToObject(message.value)
-                            "location" -> locationState = Vector2D.metaToObject(message.value)
-                            "acceleration" -> accelerationState = Vector2D.metaToObject(message.value)
+                            "acceleration" -> IVirtualCar.acceleration.write(Vector2D.metaToObject(message.value))
                         }
                     }
                 }
@@ -38,21 +33,19 @@ class MagixVirtualCar(private val magixEndpoint: MagixEndpoint<DeviceMessage>, c
 
     @OptIn(ExperimentalTime::class)
     override suspend fun open() {
-        super<DeviceBySpec>.open()
+        super.open()
+
+        val magixEndpoint = MagixEndpoint.rSocketWithWebSockets(
+            meta["magixServerHost"].string ?: "localhost",
+            DeviceMessage.serializer()
+        )
 
         launch {
             magixEndpoint.startMagixVirtualCarUpdate()
         }
+    }
 
-        //starting regular updates
-        doRecurring(Duration.milliseconds(100)) {
-            IVirtualCar.speed.read()
-            IVirtualCar.location.read()
-            IVirtualCar.acceleration.read()
-        }
+    companion object : Factory<MagixVirtualCar> {
+        override fun invoke(meta: Meta, context: Context): MagixVirtualCar = MagixVirtualCar(context, meta)
     }
 }
-
-class MagixVirtualCarFactory(private val magixEndpoint: MagixEndpoint<DeviceMessage>) : Factory<MagixVirtualCar> {
-    override fun invoke(meta: Meta, context: Context): MagixVirtualCar = MagixVirtualCar(magixEndpoint, context, meta)
-}
diff --git a/demo/car/src/main/kotlin/ru/mipt/npm/controls/demo/car/VirtualCar.kt b/demo/car/src/main/kotlin/ru/mipt/npm/controls/demo/car/VirtualCar.kt
index 4c04190..2cfea25 100644
--- a/demo/car/src/main/kotlin/ru/mipt/npm/controls/demo/car/VirtualCar.kt
+++ b/demo/car/src/main/kotlin/ru/mipt/npm/controls/demo/car/VirtualCar.kt
@@ -38,7 +38,7 @@ data class Vector2D(var x: Double = 0.0, var y: Double = 0.0) : MetaRepr {
     }
 }
 
-class VirtualCar(context: Context, meta: Meta) : DeviceBySpec<VirtualCar>(IVirtualCar, context, meta), IVirtualCar {
+open class VirtualCar(context: Context, meta: Meta) : DeviceBySpec<VirtualCar>(IVirtualCar, context, meta), IVirtualCar {
     private val timeScale = 1e-3
 
     private val mass by meta.double(1000.0) // mass in kilograms
diff --git a/demo/car/src/main/kotlin/ru/mipt/npm/controls/demo/car/VirtualCarController.kt b/demo/car/src/main/kotlin/ru/mipt/npm/controls/demo/car/VirtualCarController.kt
index 6b16b91..974c2ac 100644
--- a/demo/car/src/main/kotlin/ru/mipt/npm/controls/demo/car/VirtualCarController.kt
+++ b/demo/car/src/main/kotlin/ru/mipt/npm/controls/demo/car/VirtualCarController.kt
@@ -36,8 +36,7 @@ class VirtualCarController : Controller(), ContextAware {
             virtualCar = deviceManager.install("virtual-car", VirtualCar)
             //starting magix event loop
             magixServer = startMagixServer(enableRawRSocket = true, enableZmq = true)
-            val magixEndpoint = MagixEndpoint.rSocketWithWebSockets("localhost", DeviceMessage.serializer())
-            magixVirtualCar = deviceManager.install("magix-virtual-car", MagixVirtualCarFactory(magixEndpoint))
+            magixVirtualCar = deviceManager.install("magix-virtual-car", MagixVirtualCar)
             //Launch device client and connect it to the server
             val deviceEndpoint = MagixEndpoint.rSocketWithTcp("localhost", DeviceMessage.serializer())
             deviceManager.connectToMagix(deviceEndpoint)