import { createZipArchive, ZipBuffer, ZipEntry } from 'node:zlib';
import { create, ZipProvider } from 'node:vfs';

const zipEntry = await ZipEntry.create('file.txt', Buffer.from('contents'));
const zipArchive = createZipArchive([zipEntry]);
const archive = Buffer.concat(await Array.fromAsync(zipArchive));
const fs = create(new ZipProvider(new ZipBuffer(archive)));

try {
  await fs.promises.writeFile('/file.txt/child.txt', 'hello');
  console.log('write succeeded');
} catch (error) {
  console.log(`${error.code}: ${error.message}`);
}