Mercurius Window System (MWS)

The Mercurius Window System (MWS) is a network‑native, server‑side rendering system that enables graphical sessions to be accessed remotely with explicit semantics for windows, input, audio, and session state. MWS allows a user to interact with a workstation from untrusted or resource‑constrained client devices without exposing application data, GPU workloads, or compositor state to those devices. The protocol defines a zero‑trust client model, a structured session and window architecture, and distinct planes for rendering, video, audio, and input over an SCTP multi‑stream transport profile. This document specifies the MWS architecture, message formats, transport requirements, and security model.