Get the book. Just do it. It’s fiction in more than a lot of ways. What is NOT fiction is the social reaction to no clean water or food after about 3 days.
The technological aspects of recovery would be the easy ones. Recovering infrastructure destroyed in social unrest would be dicier. Building that out again when most of your key people had expired from unsanitary conditions or lack of food would be impossible.
Thanks, I probably will, now.
The “people” scare me more than anything.