Angular Custom Elements - How to pass in forRoot() from external application?

Question

In Angular custom Elements, how to pass in .forRoot() from external application?

https://stackblitz.com/edit/github-ahxfy9?file=projects%2Fclick-tracker-element%2Fsrc%2Fapp%2Fapp.module.ts

<!--include the dist js-->
<script src="../dist/ct-element.js"></script>

<ct-click-tracker step="5"></ct-click-tracker>

<script>
  const ctElm = document.querySelector('ct-click-tracker');
  ctElm.addEventListener('increase', (event) => {
    console.log(event.detail);
  });
</script>