Angular Application Page/Block Template

MYMODULE_MYAPP.tpl.php

<?php
/**
 * MYAPP webpack application container
 */
?>
<div id="MYAPP" data-uuid="<?php print $data['uuid']; ?>" data-csrf="<?php print $data['csrf']; ?>">
    <?php foreach ($data['css'] as $css): ?>
    <link href="/<?php print $css; ?>" rel="stylesheet" />
    <?php endforeach; ?>
    <div class="application-placeholder">Loading application.</div>
    <?php foreach ($data['js'] as $js): ?>
    <script type="text/javascript" src="/<?php print $js; ?>"></script>
    <?php endforeach; ?>
</div>