salsify is a new design for real-time Internet video that jointly controls a video codec and a network transport protocol. Current systems (Skype, Facetime, WebRTC) run these components independently, which produces more glitches and stalls when the network is unpredictable.
They make some pretty bold claims: In testing, Salsify consistently outperformed today’s real-time video systems in both quality and delay.
Much hype, then not so much code. As of today the last commit was on Jul 19, 2018.
this ticket has been moved to: https://github.com/Xpra-org/xpra/issues/1826