Can you write a development document?

[SindenDev]

[cgutman]

The public interface is documented in https://github.com/moonlight-stream/moonlight-common-c/blob/master/src/Limelight.h

For the stuff around the moonlight-common-c code, like pairing and session initiation, I suggest https://github.com/moonlight-stream/moonlight-embedded as a good sample client (especially the libgamestream code).