State.kt

class State<T>(private val scope: CoroutineScope, initialValue: T? = null) {

    private val channel =
        initialValue?.let { ConflatedBroadcastChannel(it) } ?: ConflatedBroadcastChannel()

    var value: T
        get() = channel.value
        set(value) {
            scope.launch { channel.send(value) }
        }

    val flow: Flow<T>
        get() = channel.asFlow()
}