Рич Харрис уже знает про технологию, это он писал 11 ноября 2019: There's also potential for further benefits in future — by putting markup in <template> elements that are on the page (generated during SSR), or in HTML modules if we ever get those. This would mean less JavaScript, and we can take advantage of the browser's parser (which is fast!). https://github.com/sveltejs/svelte/issues/3898