What's the proper way of creating a custom element/web component for tabulator 6.3 using svelte 5?

Tried creating a web component/custom element that would wrap a table from tabulatorjs using svelte, but for some reason can't get the table to properly display. I've followed the docs text and it seems to work works when you're running normal svelte components, but fails as a custom element/component.failing web component

VS

working non web component

For code examples, here's a demo repo containing "main" branch which works and "broken" branch which doesn't.Also worth noting the counter web component works in both branches, but tabulator fails.