Meta's head of augmented reality software, Don Box, is stepping down from his role

This raises questions about the progress of Meta’s custom operating system for its AR glasses.

Box’s departure could be a setback to the development of the operating system.

Meta still plans to deliver a first generation of its AR glasses next year for internal use by developers.

The company aims to ship AR glasses to consumers in 2027.

Meta’s CEO, Mark Zuckerberg, sees AR glasses as a key part of building an immersive virtual “metaverse.”

Meta has faced challenges in building custom silicon for its AR/VR products and has laid off employees in its custom silicon unit.

Box was hired by Meta in 2021 to lead the development of a unified operating system for its devices.

Box previously worked at Microsoft and led the creation of the Xbox One operating system.