According to Intents and thanks to this thread, I know that you can open your app via Siri with "Open [APP NAME]",
What I want to know is if it is possible to tell to Siri just only one word like 'Cheese' to open the Camera app or an other specific keyword set beforehand to open your own app using Siri.
Is it possible ? If yes, I have to use Intents to do that or there is another way ?
Siri runs on the OS level, so in order to use any intents you have set within your app, the user must specify your app. "Get a ride with Lyft" or "Message Mom in Facebook" etc.. More examples in the doc: https://developer.apple.com/sirikit/