Building user profile pages in Kirby 3

I tried that:

config.php

  'routes' => [
          [
            'pattern' => 'mitglied/(:any)',
            'action'  => function($user) {
              $site = kirby()->site(); 	
              return tpl::load(kirby()->roots()->templates() . DS . 'member.php', array('user' => $user, 'site' => $site), false);
            }
          ]
          ],

template collection of users

<?php foreach($kirby->users()->sortBy('name','asc') as $user):
		 
			if($user->member_type() == "member"): ?>
				<article class="grid-col-30">
				<a href="mitglied/"<? echo $user->id() ?> >
					<h2><?php echo $user->member_type() ?></h2>
					<h2><?php echo $user->name() ?></h2>
				</a>
				</article>
			<?php endif ?>

		<?php endforeach ?>

and added the dir content/member

what do I have to use the correct url to display a user page?
<a href=“mitglied/”<? echo $user->id() ?> >

maybe it’s simpler (with my knowledge) to switch between user collection and singel user with JS