Information available here:
https://developer.pico-interactive.com/sdk
Download SDK
Extract XR Plugin folder (e.g. UnityXR_v2.0.3_B51)
Install via Package Manager
Windows > Package Manager > + > Add package from diskā¦
Select package.json
Set PixoXR as Android target in XR Plug-in Management
Pico Neo 3 works with either XR Toolkit Player or XR Toolkit Player - Device Based.