Using WebRTC to snap photos

I want to snap and save a photo using a custom UI. The expo-image-picker plugin does not allow me to modify the UI of the camera display and add my own elements. WebRTC does.

The root libraries for WebRTC use an HTML video and canvas element to capture a frame from the stream , however I cannot find an equivalent in the react native webRTC library.

Is there a way to take a still picture with react-native-webRTC and save it?