>>79311
Have a rain water collection system, if it is prohibited by bureaucratic scumbags you might need to conceal it from people though. There are also atmospheric water generators too but they require routine filter replacement every year of use.

The reason I liked canned foods btw, is they are great for long term storage plus rodents and bugs cannot get into canned foods. They're also very easy to stack and rotate. Building a surplus of canned food is a great way to stock up a pantry, some canned foods last up to 10 years. Just this year I opened up some canned butter from the year 2013 and it was still good.