An excellent book about the shit hitting the fan is One Second After, by William Forstchen. His book describes life after an EMP event. In his book, the EMP was from a deliberate attack. While that is a logical possibility, I believe that is highly unlikely. We are far more likely to get an EMP from a Carrington event. Foratchen’s book, then, serves as a warning of what to consider.
One recent article on geological evidence showing that Carrington events are more common and potentially far larger than previously thought:
https://astronomy.com/news/2021/09/u...flares-can-get