As AR-VR technologies are creating a different meaning for digital interaction, scalability and robustness in product development become pivotal in building impactful user experiences. This session will talk about architectural and engineering strategies for building AR-VR products that will be able to scale seamlessly, satisfying the demands of performance, usability, and immersion. Attendees will learn how to create frameworks that overcome the distinctive AR-VR challenges of high computational needs, low latency, and cross-platform capability, offering practical ways to optimize resource utilization and manage complex 3D content. There will also be exploration on how modular architecture and cloud-driven innovation support scalability in helping AR-VR products reach various user groups across devices and environments.