Just note that I last used svelte/sapper 2 years ago. I have no idea if core updates or sveltekit or (hopefully) improved typescript support changes anything.

Just note that I last used svelte/sapper 2 years ago. I have no idea if core updates or sveltekit or (hopefully) improved typescript support changes anything. Some types of errors cause your application to halt (which might feel like a UI freeze). There's no way to catch these errors and show an error page, show an error message, or report the error to an error tracking service like Sentry. I'm subbed to the github issue for this and never saw a fix. Poor composability of components. Components in svelte are awesome in the general sense, they're just missing this higher-level code organization possibility that react, solidjs, and vuejs users have cozy versions of. The docs claimed a specific function worked like nuxt's asyncData function. Whoever wrote that has no idea what nuxt's asyncData function does, because that function worked very very very differently.