I remember using the Swedish implementation of Proton[0] to buy a coffee and bun at our high school's cafe and thinking it was so cool [0] https://sv.wikipedia

I remember using the Swedish implementation of Proton[0] to buy a coffee and bun at our high school's cafe and thinking it was so cool [0] https://sv.wikipedia.org/wiki/Cash_(betalsystem) https://sv.wikipedia.org/wiki/Cash_(betalsystem)