[spankalee]

With any web component you could assign the worker to a property, either imperatively:

    el.worker = worker

Or declaratively:

   html`<my-component .worker=${worker}></my-component>`

That's using lit-html syntax, but there are a lot of other rendering libraries that work similarly.

[insin]

Every time I go back to give Web Components another 5 minutes, I hit this point where using lit or a lit-like would take a lot of the pain of the problems Web Components don't solve and have no planned solution for away.

But once I decide to cross the "no dependencies" line, using something like Preact + htm as a no-build solution would also take the most of the rest of the pain away, and solve many, many other problems Web Components have no solution and no planned solution for.