Disabling SSR and prerender within SvelteKit turns the output into an SPA, and the manualChunks option in vite-plugin-singlefile ensures the output is one file that includes every page of the site.
That's pretty nice. Surely if you have a big enough site with enough content loading all of it one go is not a pleasant experience on slow connections?
Depends on the site and content, for sure. This particular site is aggregating a subset of public profiles and posts from a social media network. To compare, the site I'm pulling the data from uses nearly 20MB to display a single uncached page of post titles and 2MB per subsequent page, while my site is able to display the entire userbase for a cost of 250kb and a single request for a ~5kb image on subsequent pages. The only difference is the choice of frameworks and component construction.