In Europe, we changed to the Euro not that long ago. I was a student and I used to use a shared laundry machine. It was the day before returning to school. I was barely alone in the dorms. Let's do a laundry !
The machines were updated to get euros. There was another machine just to change the coins, especially since the washing machines only took one kind of coin (20 cents).
I put one fresh euro in the exchange machine, expecting to get 5 coins of 20 cents.
Tching. Tching. Tching. Tching. Tching. ... Tching. Tching. Tching. Tching. Tching. ... Tching. Tching. Tching. Tching. Tching. ...
What ?! The machine was buggy and would not stop. I grabbed a hoodie to put the coins in it. Soon, it was not enough. After what seems to be an eternity I was there with around 50€ and kilos of coins.
They need a cloud connection for the setup, but there is a "LAN only mode" (there are still some messages yet). There is also a new X1E (enterprise edition) that is said to be totally offline if needed.