kit and svelte are listed a devDependency in demos but needed for running build

[bleucitron]

Once you built a project with adapter-node, node build does not work without @sveltejs/kit and svelte in node_modules.

Cannot find package '@sveltejs/kit' imported from /Users/Romain/Code/tutos/sveltekit-app/build/app.js

On the kit template projects (demo or skeleton), @sveltejs/kit and svelte are listed as devDependencies.
My understanding was that you should be able to run a project in production without any devDependencies installed.

Plus i thought that all prod dependencies were packaged by rollup (via vite) on build, which does not seem to be the case since we still have import such as

// in build/app.js for DEMO APP
import cookie from "cookie";

I'm not sure why we should not keep @sveltejs/kit and svelte as devDependencies, but at the same time we currently need to have the corresponding folders in node_modules...

Am i missing something here ?

[Conduitry]

Closing this as a duplicate of #1257. This should also be fixed by #1648.