public VncRecordingContainer withVideoFormat(VncRecordingFormat videoFormat) {
        if (videoFormat != null) {
            this.videoFormat = videoFormat;
        }
        return this;
    }
Create a sidekick container and attach it to another container. The VNC output of that container will be recorded.
core/src/main/java/org/testcontainers/containers/VncRecordingContainer.java