Full stack polyglot dev here, the relentless pressure to use Sveltekit that has utterly destroyed plain Svelte docs, IMO, coupled with the koolaid kult around v5 is why i finally ditched svelte.

I have backend solutions and existing databases and existing backends. I would never consider a Js backend in a production app to begin with, despite the benefits an isomorphic approach offers. I dislike when physical actual boundaries in code execution contexts are obfuscated, for one...

But not everyone is building SPAs, and my dev server is my actual backend, thanks