Pion Handoff moves WebRTC sessions server-side

This is a sharp niche infrastructure tool, not a mainstream app. The value is in control: it turns the browser into a thin signaling front end while the backend owns the media path.

• –The repo mocks `RTCPeerConnection` in the browser and forwards signaling to a separate process
• –Example flows cover saving media, sending backend-generated video, and generating a userscript for automatic overrides
• –The recording and reverse-engineering use cases are the real differentiators for WebRTC debugging and automation
• –It will matter most to teams building WebRTC test harnesses, media tooling, or compliance recording pipelines
• –The privacy and security implications are obvious, so this is powerful but specialized