The serious side is simple enough, local food security - when there's no diesel to seed and harvest with there will be no export crops from here to feed millions across the planet .. but we here will still have smaller crops via animals for our food.
I'm literally in one of the most isolated parts of the globe, WWII, COVID, shortages via Iran clustf*ck, etc have real impacts and we plan to ride those out, like floods, droughts, cyclones, etc.