@Riley_S Your comment that ONVIF isn't supported because it's power-hungry makes sense. However, I've got my C420 plugged into A200 solar panel, so I'm not worried being power hungry isn't a worry....

Since the C420/H200 doesn't support Apple Homekit, I'm interested in writing a Homebridge.io plug-in for it. How can I get a copy of the api(s)?

Since the KD110 doesn't support Apple Homekit, I'm interested in writing a Homebridge.io plug-in for it. How can I get a copy of the api(s)?