Gardenworld can take an infinite number of forms. The number of efforts already underway is uncountable. Here is one, presented in PowerPoint, that I visited earlier in the year in Malaysia.
https://drive.google.com/file/d/1nUfFq0ccdnafXCEFnXaZj-7IhFuXK0YS/view
The people living in the villages in the jungle are not primitive Tarzan types, but modern citizens who happen to live in these villages. Quality of life and quality of health, the food terrific, and the freedom of children to play without adult supervision in the absence of cars was very attractive. It is an expanded life to fit the expanded opportunities of the village, not a restricted life to be shoehorned into a\restricted life.
There are interesting questions about the demographics. For example, how many people could live in such villages before the jungle suffers?