Nango provides a suite of tools and infrastructure to support real-time syncing, making it easy to reflect changes from external systems into apps instantly without complex infrastructure. Real-time syncing requires webhooks, which can be used in conjunction with fast polling for near real-time syncing. Nango supports both webhooks and fast polling, offering merge strategies to ensure data consistency, and provides high-frequency polling options with optimizations such as 30-second intervals, incremental syncing, and sync partitioning. Setting up real-time syncing with Nango is straightforward, and the company offers documentation and resources for implementation.