I have been slowly building up about a years worth of food and supplies for a while now. Vacuum sealed. I will be complaining like the Israelites about the manna if I have to eat it for over a year. LOL.
At least I won't starve if TSHTF. Unless someone steals it all from me.
My only mistake was I should have bought a place in cottage country with a log cabin and a wood cook stove. No power or electrical. If we get hit by a Carrington event or worse a Charlemagne event then all wires and electrical devices will be instantly fried and catch on fire. Back to the stone age real quick.
A massive CME from the sun missed earth in 2015. We were lucky.