You will need a lot more money, there is more to daily expenses than food and wifi. Also 1 acre is not enough for a sizeable group.

You absolutely can though. I know the preppers forum had one. You see it a lot more in Latin America these days, mostly retired expats and hippies (not trying to be derogatory). I find it’s kind of hard to ask people to put in all that effort though when they don’t get proper land rights. A commune doesnt offer a stable retirement other than trust me. I always imagine tension can run a lot higher than they should in these types of communities.