hugo-theme-cyberscopes/layouts/shortcodes/input.html

<div v-scope>
  <input type="text" name="txt"
 		 @change="mydata.save($el.value)" />
</div>

<div v-scope>
  <pre>id = {| urlParams.get('id') |}</pre>
  <pre v-effect="$el.textContent = mydata.data" ></pre>
</div>