Trigger off scene from Siri

I’m using and I’m using homebridge to access hass from homekit.
I have various scenes in different rooms that works great to trigger from Siri, except the off scene. This is kind of expected behavior in homekit since there is nothing on from homekits perspective.
I have an idea of creating a input_boolean that is on in all scenes except for the off scene. And when the value is turned to off, it will trigger the off scene. Then have the boolean exposed to homekit instead off the scene.
But I want to check how others have solved this issue, or if the is a way that this is supposed to be done.