tick-sample.scala

import monix.eval.TaskApp
import monix.reactive.Observable
import scala.concurrent.Await
import scala.concurrent.duration._

// Variant 1 (classic)
object Playground {
  def main(args: Array[String]): Unit = {
    val completedF = Observable
      .intervalAtFixedRate(5.seconds)
      .foreach(_ => println("Tick!"))
    
    Await.result(completedF, Duration.Inf)
  }
}

// Variant 2 (more pure, using TaskApp)
object Playground2 extends TaskApp {
  override def runc = {
    Observable
      .intervalAtFixedRate(5.seconds)
      .foreachL(_ => println("Tick!"))
  }
}