Sony has publicly released Camera Remote Command, a full list of commands enabling developers to remotely control any of 29 Sony cameras.

The remote control is achieved using a communication protocol that is Sony’s proprietary extension of the ISO standard PTP (Picture Transfer Protocol), and command references and sample code are ...

On the iPhone, Siri can open the Camera app but won’t actually take a photo. To enable voice controlled capture, open Settings and choose Accessibility > Voice Control, then turn the feature on.