WebRTC : can't make it work. (noob)

Hi,

Sorry if it's the wrong section but i don't find the webrtc package official forum.

I must be stupid but i find WebRTC example difficult to understand.
I am looking for the videoreceive example (to stream my pc desktop (i have a script working for that) to an android device, and i saw android support was added to the webrtc package last month to the package):
it works well locally, but i don't find what to modify to make it work between 2 pcs.
I made a lot of attempt modifying the sample without success.

on 2 unity editor on 2 pcs, i tried for exemple to copy past local/remote description sdp string, to help pc to "find each other" through the stun google test server, but no results.

Yes, i know, some will say to me : learn webRTC throughfully before using it, etc.. but i use it only for a fun personnal project, and don't have a lot of time of leisure.
If a nice person could orient me in the right direction.

Thank you a lot!