ViewModel properties

// 🍎 
private(set) lazy var matchState = 
  Property<MatchState>(mutableMatchState)
let mutableMatchState: MutableProperty<MatchState>

private let eventPipe = Signal<Event, Never>.pipe()
var events: Signal<Event, Never> {
    return eventPipe.output
}

// 🤖 
private val mutableMatchState = MutableLiveData<MatchState>()
val matchState: LiveData<MatchState>
    get() = mutableMatchState
    
private val eventPubsub: PublishSubject<Event> = PublishSubject.create()
val events: Observable<Event> = eventPubsub