Launching an extrernal bundled app in Aurelia Component

Hello guys,
I havce a case where I need somehow to launch an Anguilar application in one of my views / component.
With this post I’m researching for the best way to do that. I see much more complication in integrating Angular in Aurelia as it is a platform. I see few scenarios and probably the most simple one (and definitely not the best) is projecting the bundled Angular app in an IFrame. I think there should be more elegant way, but still keeping the line of separation.
I imagine I have A component for projection and on bind or activate I’m attaching an external bundled js, CSS on a custom HTML tag. What is the best way to load such content?
I have literally pasted this I’m my template. trying to mimic the markup fro the bundled Angular app.

<template>
  <h1>${message}</h1>
  <p>${value}</p>
  <link rel="stylesheet" href="../../lib/third-parties/my-app/styles.css" media="print" onload="this.media='all'">
  <script src="../../lib/third-parties/my-app/polyfills.js" type="module"></script>
  <script src="../../lib/third-parties/my-app/scripts.js" defer></script>
  <script src="../../lib/third-parties/my-app/main.js" type="module"></script>
</template>