How to set application name dynamically in single-spa-router ?

[MirtoBusico]

Hi all,
I'm trying to create a route that call an application with the same name of the route.

For now I have two applications ("u-app1" and "u-app2") that are called when the path is equal to application name ("/u-app1" and "/u-app2") and this works:

<single-spa-router>
  <!--

    This is the single-spa Layout Definition for your microfrontends.
    See https://single-spa.js.org/docs/layout-definition/ for more information.

  -->
  <div class="w3-container w3-blue">
    <main class="w3-row">
      <div class="w3-col s3 ">
        <application name="@user-frontend/u-header"></application>
        <application name="@user-frontend/u-nav"></application>
      </div>
      <div class="w3-col s9">
        <route path="u-app1">
          <application name="@user-frontend/u-app1"></application>
        </route>

        <route path="u-app2">
          <application name="@user-frontend/u-app2"></application>
        </route>

        <route default>
          <h1 style="padding: 30px;">U-VIEW application</h1>
        </route>
      </div>
    </main>
  </div>
</single-spa-router>

Now I'm trying to use the path as a variable to select the application; but I don't know how to do it
In my mind this can be a pseudo code:

<single-spa-router>
  <!--

    This is the single-spa Layout Definition for your microfrontends.
    See https://single-spa.js.org/docs/layout-definition/ for more information.

  -->
  <div class="w3-container w3-blue">
    <main class="w3-row">
      <div class="w3-col s3 ">
        <application name="@user-frontend/u-header"></application>
        <application name="@user-frontend/u-nav"></application>
      </div>
      <div class="w3-col s9">

        <route path="/:appname">
          <application name=params.appname></application>
        </route>

        <route default>
          <h1 style="padding: 30px;">U-VIEW application</h1>
        </route>
      </div>
    </main>
  </div>
</single-spa-router>

How can I pass the path variable as the application name?