NavigationManagerImpl.kt

@Singleton
class NavigationManager @Inject constructor(
    @MainImmediateScope private val externalMainImmediateScope: CoroutineScope
) {
    private val navigationCommandChannel = Channel<NavigationCommand>(Channel.BUFFERED)
    val navigationEvent = navigationCommandChannel.receiveAsFlow()

    fun navigate(command: NavigationCommand) {
        externalMainImmediateScope.launch {
            navigationCommandChannel.send(command)
        }
    }
}