Well, another: notify-send --hint=string:x-canonical-private-synchronous: "message1" notify-send --hint=string:x-canonical-private-synchronous: "message2" in the same time, you will lost "message2"...
Well, another: string: x-canonical- private- synchronous: "message1" string: x-canonical- private- synchronous: "message2"
notify-send --hint=
notify-send --hint=
in the same time, you will lost "message2"...