In a perfect world if I had infinite time, I would be updating the Arlobot code to ROS2. I started on that process some time back, possibly years now, and those files were left from that attempt.
Unfortunately, I doubt that I will find time to do so. Work and family are taking most of my time and tend to just patch up my existing projects in my spare time now, a bit like tending an old garden, rather than planting anything new.
Maybe if/when I retire! LOL