Yep! As I said, not quite a 1.0 release but a bunch of people are using it in production.

And yeah, I think if you want to use SvelteKit the endpoints need to be in something that compiles to JS — not 100% sure.

But it's quite possible to hook Svelte itself into any stack you want. SvelteKit is the bundling up of a bunch of nice defaults whereas Svelte is completely stack agnostic.

I’m currently using SvelteKit linked to a go backend. You don’t have to use any of the backend capabilities of SvelteKit if you don’t want to. It’s great to work with.