A simple package to inject elements into other elements. Is so simple, that I can't call it a package really.
If you just want to inject something into the body of the document, you can just do the following.
<div use:inject>
<!-- Anything really -->
</div>
<script>
import inject from "svelte-inject";
</script>
But! If you are extra adventurous, you can parse a CSS selection or a HTML node to inject it into that instead.
<div use:inject={"main"}>
<!-- Anything really -->
</div>
<script>
import inject from "svelte-inject";
</script>