Is it possible to build event bus queue with combine publishers and subjects?

Code Block swift
class Work {
    var cancellable: AnyCancellable?
    var cancellable2: AnyCancellable?
    typealias Input = Int
    private var inputSubject: PassthroughSubject<Input, Never> = .init()
    private var inputPublisher: AnyPublisher<Input, Never>
    init() {
        let queue: DispatchQueue = .init(label: "com.abc.abc")
        self.inputPublisher = self.inputSubject.receive(on: queue).eraseToAnyPublisher()
        self.inputSubject
    }
    func handle(_ input: Input) {
        self.inputSubject.send(input)
    }
    func work() {
        let numbers: [Int] = Array(1...10)
        self.cancellable2 = self.inputPublisher.sink { (value) in
            let count: Int = .random(in: 3...5)
            sleep(UInt32(count))
            print(value)
        }
        self.cancellable = numbers.publisher.receive(on: DispatchQueue.global()).sink { [weak self] (value) in
            self?.handle(value)
        }
    }
}