Firebase Real-time Database value event listener via Kotlin callbackFlow{} updating Jetpack Compose list

DatabaseReference.kt

data class SnapshotResult(val snapshot: DataSnapshot? = null, val error: Throwable? = null)

fun DatabaseReference.listen(): Flow<SnapshotResult> =
  callbackFlow {
      val valueListener = object : ValueEventListener {
          override fun onCancelled(databaseError: DatabaseError) {
              close(databaseError.toException())
          }

          override fun onDataChange(snapshot: DataSnapshot) {
              offer(SnapshotResult(snapshot, null))
          }
      }
      addValueEventListener(valueListener)

      awaitClose { removeEventListener(valueListener) }
  }

DataStore.kt

fun locationsFlowable(): Flow<PantryResult<List<ItemLocation>>>  {
    return getLocationsChange()
}

FirebaseDao.kt

fun getLocationsChange(): Flow<PantryResult<List<ItemLocation>>> {
    val user = user() ?: return flow { PantryResult<List<ItemLocation>>(exception = UserNotAvailableException()) }
    val ref = database.child("locations").child(user.uid)
    return ref.listen().map {
        val (data, error) = it
        if (error != null) {
            PantryResult(exception = error)
        } else {
            val locations = data?.children?.mapNotNull { child ->
                child.getValue(ItemLocation::class.java)
            } ?: emptyList()
            PantryResult(locations)
        }
    }
}

LocationsContent.kt

@Composable
fun LocationsContent(
    navigateTo: (Screen) -> Unit,
    innerPadding: InnerPadding,
    pantry: Pantry
) {
    val result = pantry.locationsFlowable().collectAsState(initial = PantryResult(emptyList()))
    if (result.value.isSuccess) {
        if (result.value.data.isNullOrEmpty()) {
            EmptyLocations()
        } else {
            LazyColumnFor(
                modifier = Modifier.padding(innerPadding),
                items = result.value.data.orEmpty()
            ) { location ->
                Row(modifier = Modifier.padding(8.dp)) {
                    Text(text = location.label, style = MaterialTheme.typography.h3)
                }
            }
        }
    }
}