Cactus Mod (1.17.1, 1.18.2) adds new uses to Cacti. It includes the Cactus Dispenser, which can be used as defense or mod farms, as well the Cactus Chest which can be used in order to store items. This mod adds cactus tools and armor, blocks, food, and food.
Have you ever thought of using cacti to make green dye? It’s not clear why you would want to use cacti for more than just making green dye, but here it is.