Do you serve meals in the HoReCa industry? In the future, you might be working with a 'registered register'. This contains a 'black box' that records all transactions. It allows the tax office to check on your income.
Prepare for tomorrow
At the moment, these black boxes don't exist. But as soon as a circular is released to make the rules known, producers will go to work to integrate everything you need.
Your registers will always conform to valid laws and decisions.