microsoft/MixedReality-WebRTC

MixedReality-WebRTC was historically a critical infrastructure component for HoloLens developers, as implementing WebRTC on the Universal Windows Platform (UWP) is notoriously difficult due to sandboxing and driver constraints. With over 900 stars and nearly 300 forks, it saw significant adoption during the peak of HoloLens 2 development. However, the project's velocity has flatlined (0.0/hr), and the industry has shifted away from platform-specific UWP wrappers toward cross-platform standards like OpenXR and WebXR. Defensibility is moderate but declining because while the technical complexity of WebRTC is a moat, the maintenance burden is high and Microsoft has largely pivoted its Mixed Reality strategy (e.g., toward Mesh or integrating with standard Unity tools). It faces heavy competition from commercial RTC providers like Agora and Twilio, who offer more robust Unity SDKs, as well as Unity's own Render Streaming package. For a technical investor, this is a legacy asset: essential if you are maintaining a HoloLens-specific app, but a 'dead end' for new cross-platform spatial computing projects. The high platform domination risk reflects that this tool is tied to Microsoft's specific hardware/software ecosystem, which is currently in a state of flux.