//! Output sinks for the rendered virtual-camera view.
//!
//! Pipeline role (PLAN.md, "Pipeline per frame" — sinks):
//!
//! * an egui UI for viewing the virtual-camera image and steering the
//!   virtual camera
//! * on Linux, a v4l2loopback virtual webcam so Teams/Slack can pick the
//!   output up as a regular camera
//! * on Windows there is no built-in sink; capture the UI window via OBS
//!   yourself
//!
//! The `kinect-view` binary in this crate is the application entry point.