I have a project built using the XR interaction toolkit I want to add cross-platform mean I can build it for Oculus as well as SteamVR in the future SonyVR2 how can i do this. Is there any way?
For PCVR I suggest to use the OpenXR plugin. OpenXR supports SteamVR, Oculus Runtime, and Windows MR.
XR IT is cross platform by design, so it should not be that hard to add OpenXR support