At a lot of grocery stores in Europe, you weigh and tag your own produce. Basically you put your bananas in a plastic bag, set them on the scale in the produce section, and push the number for bananas or select them on the touch screen. It prints out a barcode and price, you stick it on the bag, and the cashier scans it.

Perhaps this could be similar, but instead of printing the barcode, it automatically adds the item to your Amazon cart.

It seems like everything is already prepackaged in the store according to what they have for sale. I know my local grocery store has certain things prepackaged into bundles instead of allowing people to bag them.

It's an 1,800 square foot store, I doubt it has a produce section other than for individual fruits and the like.