Have you considered releasing your Rust bindings for libwebrtc separately, either as open source or as another commercial product? I could have really used that for a desktop application I started developing a few months ago. In the absence of such bindings, I went with Electron instead, reluctantly. And no, I don't think your high-level API would be a good fit; what I'm doing with WebRTC is too custom.

Edit: Also, webrtc-rs doesn't work for me either; AFAIK, it doesn't yet have enough of the media stack, including hard stuff like echo cancellation.