It's "full-stack" in the sense that it's not only client-side - it's more like next in that you have code that lives on a server and can respond to client invoc

It's "full-stack" in the sense that it's not only client-side - it's more like next in that you have code that lives on a server and can respond to client invocations, which is useful if you want to do server-side rendering and so on. It has some neat payoffs - you can use cookies for auth even if your frontend lives on a different domain, because the frontend server can read those - but IME it's a pain if you just want an SPA, and despite what most of the Kit community thinks, those are still pretty useful. You can't SSG an E2EE chat app.