I've tried this a couple of times: move to the woods with some like-minded people and start a little Permaculture village. All the physical stuff really works: composting, rocket stoves, etc.
In my experience the problems are always people. ("Hell is other people." ~Voltaire or somebody.) Drug and alcohol abuse or just plain crazy can bust up a venture.
I did meet a group of people who were living very very well in a communal village. They did things like holding hands in a big circle and singing grace before meals. They are probably among the happiest and most fulfilled folks I've ever met.
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One thing I would add to the list: Aircrete dome houses. Cheap, easy, fast, beautiful, durable (fire- and earthquake-proof.) Start at https://www.domegaia.com/ for a group that teaches how and developed a backyard-scale foamer. There are lots of DIY videos and information out there too.