This error usually happens because `@stream-io/openai-realtime-api` is a server-only package and Next.js tries to install or use it in the client-side environment. It requires Node.js 18+ and won’t work inside client components.

Try using the package only in a server route (like `/app/api/...`) and make sure your Node version is 18 or higher. Installing it with a clean environment (`rm -rf node_modules && npm install`) also helps.