? <built libnotify_actor ?path ?sum> [
  ? { argv: ["sway-env-magic-cookie"]
       env: {
        "DBUS_SESSION_BUS_ADDRESS" : ?DBUS_SESSION_BUS_ADDRESS
        "DESKTOP_STARTUP_ID" : ?DESKTOP_STARTUP_ID
        "DISPLAY": ?DISPLAY
        "SWAYSOCK" : ?SWAYSOCK
        "WAYLAND_DISPLAY" : ?WAYLAND_DISPLAY
        "XDG_SEAT" : ?XDG_SEAT
        "XDG_SESSION_TYPE" : ?XDG_SESSION_TYPE
      }
  }
  [
    <daemon libnotify_actor {
      argv: ["dbus-launch" $path]
      protocol: application/syndicate
      env: {
        "BUILD_SUM": $sum
        "DBUS_SESSION_BUS_ADDRESS" : $DBUS_SESSION_BUS_ADDRESS
        "DESKTOP_STARTUP_ID": $DESKTOP_STARTUP_ID
        "DISPLAY": $DISPLAY
        "SWAYSOCK" : $SWAYSOCK
        "WAYLAND_DISPLAY" : $WAYLAND_DISPLAY
        "XDG_SEAT" : $XDG_SEAT
        "XDG_SESSION_TYPE" : $XDG_SESSION_TYPE
      }
    }>
  ]
]