From a Grocery Dive online review:

Shoppers have to use a debit card at the door to gain entry to the store. Then they can shop for products and just walk out. Upon exit, customers can verify their purchases against the receipt. No cash is accepted.

“This speaks to the original design thinking behind NanoStore: to make a plug-and-play modular store so it can be easily placed and moved where people need it the most,”

Albert Heijn first unveiled the fully digital store under its AH To Go name in September at its headquarters in Zaandam in the Netherlands, where it was open only to employees. The move to Schiphol Airport gives the company an opportunity to pilot the technology with consumers in a highly trafficked area.

To read more: https://www.grocerydive.com/news/ahold-delhaizes-nanostore-heads-to-the-airport/568170/