Aruco tags and Apriltags are similar in approach but are different enough that the Isaac ROS Apriltag package wouldn’t successfully read Aruco tags. However, if you search for “ROS2” and “Aruco”, you’ll get a few hits on available packages out there that support reading Aruco tags using CPU algorithms. If you’re feeling really ambitious, you could re-implement one of those packages using CUDA to get GPU acceleration.