The NexPlayer™ Plugin for Unity supports Builds for Android in Oculust devices.
To build application in oculust is required to use XR Plugin
Go to Project settings → XR Plugin Management and click the button Install XR Plugin Management.
Go to the Android section and select Oculus as Plugin Provider.
Now that the Oculus plugin is in place, use the ContextMenu Actions to generate an XR Rig. GameObject → XR → Covert Main Camera to XR Rig.
In order to use more Oculus functionality, there is a free Unity package in the Asset Store called Oculus Integration with utilities like 3D controllers.
finally follow the steps to integrate the android plugins (/platforms/android.md)