When, e.g., the washing maschine is finalized, a related notfication should only be sent to people/devices that are currently at home (because others obviously cannot empty it). If nobody is at home, the notification should be sent, when people come home.
Similar things regarding putting waste out, etc.
I think as of now, it is quite complex to achieve this with dynamic groups, etc. And it should be an abstracted concept, so no solution per single notfication automation.