How to integrate svelte libraries into bud

Hello, is there any docs about how can I use modules like sveltestrap/smelte/etc inside bud app? All I do is

<script>
    import Button from '@smui/button';
</script>

<Button>Click me</Button>

and getting errors view: open error error=budhttp: open returned unexpected 500. budfs: open "bud/node_modules/@smui/button". ✘ [ERROR] No loader is configured for ".svelte" files: node_modules/@smui/button/dist/Button.svelte

What additional configuration should I apply to make this?

Thank you!