(am not rich, just giving thoughts on why i disagree with the premise of the question) incremental build is a static site concern and i think its pretty clear the industry has more or less given up on that as a scaling strategy for websites in favor of serverless/edge rendering (which you can blend with static generation to get almost the same thing as incremental builds)

As swyx said, it's probably not a priority for us. You can basically get the same benefits by using Incremental Static Regeneration, which is turnkey if you're using Vercel (not through any tight framework<->platform integration, but rather because the platform offers the feature and the Vercel adapter exposes it — any other platform could do the same thing): https://kit.svelte.dev/docs/adapter-vercel#incremental-stati...