I wonder what the shift arrangement is for the crew of 24. Do they have some laws in Sweden about working hours so that the vessel only needs six crew but has a

I wonder what the shift arrangement is for the crew of 24. Do they have some laws in Sweden about working hours so that the vessel only needs six crew but has a staff of 24 to cover all shifts and weekends? If everything could be automated to video-game easy so that you didn't need someone to chuck more rods in the nuclear reactor or do things with bilge pumps, what would be the minimum complement for a submarine that played the deterrent role, lurking under the waves for months at a time? The problem (allegedly) with submarines is remote control drone submarines that are clever enough to know how to communicate. Apparently it is possible to program one submarine to follow another without having to carry 24 people plus their lunches, dinners and oxygen supply. There is a danger that mutually assured destruction assured by submarines with nuclear weapons could end.