We seized the source code of a company that produces deposit-refund machines. We obtained the Docker images and source codes in Azure Cloud. We crashed the device management panel interface. (There is no API auth management :D)
They have devices in countries like Estonia, Romania, Qatar, Turkey, the United States, and Israel. They give you coupons for bottle returns, and you can shop at participating supermarkets.
I don't want to bother with the devices because they don't have them in Russia. You can examine the source codes, infiltrate the devices, and create coding to generate coupons and use in supermarkets.
Admin panel URL (Still has a lot of security issues :D) = v5acorecycling.com
The source codes are for sale.
SOURCE CODE LIST
barcode_qr_reader
browser_controller
camera_controller
cloud_service
item_recognizer
login_controller
main_server
mechatronic_controller
reward_controller
thermal_printer
tr_gateway
update_controller
update_controller_checker
user_interface