I need an augmented reality based remote assistance solution where two people can collaborate over a video call using annotations, locked annotations (on the video), guided instructions on the video etc. Something similar to the RemoteAR ([login to view URL]). This is just a PoC. hence i dont require a complete enterprise system developed. I just want the freelancer to come up with a PoC where two people are on a video call and they collborate with the above mentioned features.