SvelteKit Adapter

The SvelteKit adapter packages the default @sveltejs/adapter-node build output into a standalone Kiln executable.

Requirements

• SvelteKit
• @sveltejs/adapter-node
• The default SvelteKit output directory: build

The adapter is experimental. Plain Svelte + Vite applications are not detected by this adapter because Svelte is the component compiler, while SvelteKit provides the application server, routing, and deployment output.

Configure SvelteKit

Use @sveltejs/adapter-node in the SvelteKit adapter configuration. Depending on the Svelte CLI template version, this is configured in svelte.config.js or in the sveltekit(...) plugin inside vite.config.ts.

import adapter from "@sveltejs/adapter-node";

export default {
  kit: {
    adapter: adapter(),
  },
};

For a current sv create project, replace @sveltejs/adapter-auto with @sveltejs/adapter-node in vite.config.ts and keep adapter: adapter().

Build and compile

bun run build
kiln -f sveltekit -o ./bin/app
PORT=3000 ./bin/app

Kiln launches the official SvelteKit production server from build/index.js. The bun-serve runtime engine and custom SvelteKit output directories are not supported by this initial adapter. External production dependencies retained by SvelteKit still require a real application fixture before this integration can be considered production-ready.