Vite: multiple entries, independant output paths

vite.config.js

/* eslint-env node */
import {fileURLToPath} from "node:url";

/**
 * @returns {import("vite").PluginOption}
 */
function buildPlugin(pages) {
	return {
		name: "change-html-output",
		enforce: "post",
		config: () => ({
			build: {
				rollupOptions: {
					input: Object.keys(pages).map((url) => fileURLToPath(new URL(url, import.meta.url)))
				}
			}
		}),
		generateBundle(_options, bundle) {
			for (const url in pages) {
				if (url in bundle) {
					bundle[url].fileName = pages[url];
				}
			}
		}
	};
}

/** @type {import("vite").UserConfigFnObject} */
export default (/* { command, mode, isSsrBuild, isPreview } */) => {
	return {
		build: {
			target: "es2022",
			modulePreload: false,
		},
		plugins: [
			buildPlugin({
				"tmp/00.html": "arbitrary/output/index-00.html",
				"tmp/01.html": "index-01.html",
				"tmp/02.html": "hello/world-02.html",
			})
		]
	};
};