diff --git a/rollup.config.mjs b/rollup.config.mjs
index 06cf07bf8f..fafc4fb1a1 100644
--- a/rollup.config.mjs
+++ b/rollup.config.mjs
@@ -1,23 +1,23 @@
-import fs from "node:fs";
-import { createRequire } from "node:module";
-import replace from "@rollup/plugin-replace";
-import resolve from "@rollup/plugin-node-resolve";
-import commonjs from "@rollup/plugin-commonjs";
-import json from "@rollup/plugin-json";
-import sucrase from "@rollup/plugin-sucrase";
-import typescript from "@rollup/plugin-typescript";
+import fs from 'node:fs';
+import { createRequire } from 'node:module';
+import replace from '@rollup/plugin-replace';
+import resolve from '@rollup/plugin-node-resolve';
+import commonjs from '@rollup/plugin-commonjs';
+import json from '@rollup/plugin-json';
+import sucrase from '@rollup/plugin-sucrase';
+import typescript from '@rollup/plugin-typescript';
 
 const require = createRequire(import.meta.url);
-const pkg = JSON.parse(fs.readFileSync("package.json", "utf-8"));
+const pkg = JSON.parse(fs.readFileSync('package.json', 'utf-8'));
 
 const is_publish = !!process.env.PUBLISH;
 
 const ts_plugin = is_publish
 	? typescript({
-			typescript: require("typescript"),
+			typescript: require('typescript'),
 	  })
 	: sucrase({
-			transforms: ["typescript"],
+			transforms: ['typescript'],
 	  });
 
 fs.writeFileSync(
@@ -27,7 +27,7 @@ fs.writeFileSync(
 
 const runtime_entrypoints = Object.fromEntries(
 	fs
-		.readdirSync("src/runtime", { withFileTypes: true })
+		.readdirSync('src/runtime', { withFileTypes: true })
 		.filter((dirent) => dirent.isDirectory())
 		.map((dirent) => [dirent.name, `src/runtime/${dirent.name}/index.ts`])
 );
@@ -39,30 +39,30 @@ export default [
 	{
 		input: {
 			...runtime_entrypoints,
-			index: "src/runtime/index.ts",
-			ssr: "src/runtime/ssr.ts",
+			index: 'src/runtime/index.ts',
+			ssr: 'src/runtime/ssr.ts',
 		},
-		output: ["es", "cjs"].map(
+		output: ['es', 'cjs'].map(
 			/** @returns {import('rollup').OutputOptions} */
 			(format) => {
-				const ext = format === "es" ? "mjs" : "js";
+				const ext = format === 'es' ? 'mjs' : 'js';
 				return {
 					entryFileNames: (entry) => {
 						if (entry.isEntry) {
-							if (entry.name === "index") return `index.${ext}`;
-							else if (entry.name === "ssr") return `ssr.${ext}`;
+							if (entry.name === 'index') return `index.${ext}`;
+							else if (entry.name === 'ssr') return `ssr.${ext}`;
 
 							return `${entry.name}/index.${ext}`;
 						}
 					},
 
 					manualChunks: (id) => {
-						if (id.endsWith("internal/index.ts")) {
-							return "internal";
+						if (id.endsWith('internal/index.ts')) {
+							return 'internal';
 						}
 					},
 					format,
-					dir: ".",
+					dir: '.',
 				};
 			}
 		),
@@ -76,17 +76,17 @@ export default [
 			ts_plugin,
 			{
 				writeBundle(options, bundle) {
-					if (options.format !== "es") return;
+					if (options.format !== 'es') return;
 
 					for (const entry of Object.values(bundle)) {
 						const dir = entry.name;
 						if (!entry.isEntry || !runtime_entrypoints[dir]) continue;
 
-						if (dir === "internal") {
+						if (dir === 'internal') {
 							const mod = bundle[`internal/index.mjs`];
 							if (mod) {
 								fs.writeFileSync(
-									"src/compiler/compile/internal_exports.ts",
+									'src/compiler/compile/internal_exports.ts',
 									`// This file is automatically generated\n` +
 										`export default new Set(${JSON.stringify(mod.exports)});`
 								);
@@ -97,12 +97,12 @@ export default [
 							`${dir}/package.json`,
 							JSON.stringify(
 								{
-									main: "./index.js",
-									module: "./index.mjs",
-									types: "./index.d.ts",
+									main: './index.js',
+									module: './index.mjs',
+									types: './index.d.ts',
 								},
 								null,
-								"  "
+								'  '
 							)
 						);
 
@@ -117,48 +117,48 @@ export default [
 	},
 	/* compiler.js */
 	{
-		input: "src/compiler/index.ts",
+		input: 'src/compiler/index.ts',
 		plugins: [
 			replace({
 				preventAssignment: true,
 				values: {
 					__VERSION__: pkg.version,
-					"process.env.NODE_DEBUG": false, // appears inside the util package
+					'process.env.NODE_DEBUG': false, // appears inside the util package
 				},
 			}),
 			{
 				resolveId(id) {
 					// util is a built-in module in Node.js, but we want a self-contained compiler bundle
 					// that also works in the browser, so we load its polyfill instead
-					if (id === "util") {
-						return require.resolve("./node_modules/util"); // just 'utils' would resolve this to the built-in module
+					if (id === 'util') {
+						return require.resolve('./node_modules/util'); // just 'utils' would resolve this to the built-in module
 					}
 				},
 			},
 			resolve(),
 			commonjs({
-				include: ["node_modules/**"],
+				include: ['node_modules/**'],
 			}),
 			json(),
 			ts_plugin,
 		],
 		output: [
 			{
-				file: "compiler.mjs",
-				format: "esm",
-				name: "svelte",
+				file: 'compiler.js',
+				format: is_publish ? 'umd' : 'cjs',
+				name: 'svelte',
 				sourcemap: true,
 			},
 			{
-				file: "compiler.js",
-				format: is_publish ? "umd" : "cjs",
-				name: "svelte",
+				file: 'compiler.mjs',
+				format: 'esm',
+				name: 'svelte',
 				sourcemap: true,
 			},
 		],
 		external: is_publish
 			? []
 			: (id) =>
-					id === "acorn" || id === "magic-string" || id.startsWith("css-tree"),
+					id === 'acorn' || id === 'magic-string' || id.startsWith('css-tree'),
 	},
 ];