<script>
   let count = 0
  </script>
  
  <button on:click={()=>count--}>decrement</button>
  <span>{count}</span>
  <button on:click={()=>count++}>increment</button>
  <button on:click={()=>setTimeout(()=>count++, 1000)}>
   increment later
  </button>

Doing this, I also realized rubymamis cheated a good bit on their QML version. It's missing the text for the buttons. It's not wrapped in `ApplicationWindow { }`. And there's a bug with their implementation: If you clicked their "increment later" button many times quickly then it would keep resetting the timer and only increment once.