I have rabbits. We’ve looked into this. On the internet, by the way, which would, presumably, go away in your version of the world. Simple curing takes a decent amount of non-iodized salt, denatured alcohol some detergent and oil (one method, I’m sure there are others). Should be no problem to find in large quantities. Just trade with your neighbors… Or go the native route, and chew it with however many teeth you still have left when professional dental care disappears, amiright?