Facebook parent company Meta Platforms has stopped development of a new software operating system to power its virtual reality devices and upcoming augmented reality glasses, according to two people familiar with the decision.

Shelving the project, which had been underway for several years and involved hundreds of employees, marked a setback for the company’s attempt to own the underlying software behind its Oculus VR headset and future augmented or mixed reality devices. The screens of its planned devices aim to overlay digital images on the real world or weave real-world objects into VR apps.