I think I said multiple times:

1. A secure home: having a nice not-too-big, not-too-small home, self-sufficient, at least 2 redundant water supplies, small garden, tools to work it (maybe some motorized cause if you spent your life as an adult in front of a laptop you won't have what it takes to work the land), some animals and of course, internet access, a nice archive with books (e-format also)

2. Some investments in precious metals and bitcoin (just because it's awesome). Anything else (like stocks) has 0 value over time. You need something proven over time.

3. Frugal life, with thing you need, not things you want. Nobody said to discard mobile phones and technology, just don't depend on it. AAA powered walkie-talkies are nice for example

4. An emergency fund, can be cash and bank account. Use this only for health, medical, financial issues. No fun, travelling etc

5. Work and enjoy life with loved ones.