All of this was already thought about in the pre-digital age.
And John Seymour wrote a book about it.

The Self-Sufficient Life and How to Live It - The Complete Back-to-Basics Guide
Das grosse Buch vom Leben auf dem Lande - Ein praktisches Handbuch für Realisten und Träumer

I have read the book long time ago.
It's not in my nature to kill animals and farming is too exhausting for me.

Today i live peacefully in a country with a local crypto-exchange, where electricity is cheap and i can't read/understand the daily newspaper.

Everyone finds their own way