The belt hook is a great idea, except that it’s way too close to the genitals with that high-powered assembly under tension. One wrong slip and you might become a eunuch.

Mine came with a foot-puller system where you put the front of crossbow on the ground and hold it down with your foot in a foot-loop (metal) while you attach a puller cord to the string and pull up with a lot of force. It’s not easy at all.