Here is a patent pending invention for pulling rocks or dirt with a modified hand truck. The box on top allows the user to put in weights or rocks or gravel that increase the weight so the blade will sink into the material being pulled. The plate that pulls has curved edges to capture more material The plate is wider than the tires so it can be used next to a wall. A patent was applied for in 2018. In the picture below you can see what a standard steel rake does. And below these is a video.