---
title: remoteDeviceIdentifier
framework: swiftui
role: symbol
role_heading: Instance Property
path: swiftui/environmentvalues/remotedeviceidentifier
---

# remoteDeviceIdentifier

An opaque object that identifies the device on which the scene (from which this value is accessed from) is being presented on.

## Declaration

```swift
var remoteDeviceIdentifier: RemoteDeviceIdentifier? { get }
```

## Discussion

Discussion When accessed in a context that is being presented on the local device, this value will be nil. This identifier can also be used to initialize an ARKitSession associated with the remote device. struct SolarSystem: CompositorContent {     @Environment(\.remoteDeviceIdentifier) private var deviceID

var body: some CompositorContent {         RemoteImmersiveSpace {             CompositorLayer { layerRenderer in                 // Create an ARSession for the device                 let arSession = ARKitSession(deviceID)

// Set up and run the Metal render loop.                 let renderThread = Thread {                     let engine = solar_engine_create(                         layerRenderer, arSession)                     solar_engine_render_loop(engine)                 }                 renderThread.name = "Render Thread"                 renderThread.start()             }         }     } } note: This identifier is not stable across app launches.