This is great insurance when you're fishing tidal areas that are flooding as well as wanting to hold yourself in a spot in a current.
I use an old window sash counter weight, have a carabiner clipped to the bow & stearn hand loops, run the line through those and back to a cleat I installed next to the cockpit.
I've experimented and if I anchor in any current, I can just pull it up and let it hang off the stearn until I'm out of the current and can drop the anchor & swing around to grab the line and throw the anchor behind my seat.
The black resin cleats are about $.50 at any boat shop, bought stainless steel screws, washers & nuts at Home Depot.
I would definitely suggest you use a backing plate on the inside of the yak.