Creating custom readable streams in Node.js enables dynamic data generation and efficient data production for various applications and data sources. As the creator of CoreUI, I’ve built numerous readable streams for API data feeds, database cursors, and real-time data generation. From my expertise, the most reliable approach is extending the Readable class and implementing the _read() method to control data production. This pattern provides complete control over data flow timing, batching, and source management for scalable data streaming applications.