revert dumb changes

rollup.config.mjs

@@ -39,7 +39,8 @@ export default [
 	{
 		input: {
 			...runtime_entrypoints,
-			index: 'src/runtime/index.ts'
+			index: 'src/runtime/index.ts',
+			ssr: 'src/runtime/ssr.ts'
 		},
 		output: ['es', 'cjs'].map(
 			/** @returns {import('rollup').OutputOptions} */
@@ -49,6 +50,7 @@ export default [
 					entryFileNames: (entry) => {
 						if (entry.isEntry) {
 							if (entry.name === 'index') return `index.${ext}`;
+							else if (entry.name === 'ssr') return `ssr.${ext}`;
 							return `${entry.name}/index.${ext}`;
 						}
 					},