prepping

I cannot find any survival guide for the event that a pulsar scorches earth's surface with enough force to burn people to ashes but letting tree seeds grow in the ashes. No breathable air due to fires. Partially blocked sunlight. How does one select the right type of protection? How much time...

Which things should a prepper buy or create to survive a zombie apocalypse caused by biological weapons? Guns are not allowed in my country, and knight armor is too heavy for me. I do have filament and resin 3D printers, class 3 laser modules (burning skin but not igniting fires), infra-red...