I learned to can and freeze as a teen helping my mom and I have kept at it.
I’m learning to dehydrate now.
Don’t forget salt. One can find honey and maple syrup for sweeteners but salt is not as easy to come by and critical for survival.
Lots of salt, different kinds , iodine, no iodine, and how about spice, I have a couple plastic containers of those
from what I am hearing, a freeze dryer is the way to go....very expensive, but it keeps food for decades and saves a lot of the nutrition value.....until then, I too can, dehydrate, and freeze....