FOSS gamedev and creative worlds

So I'm curious how others generate resources (like wood, coal, food, various blocks). Below is a few I do.

Food Generation Underground in the city of Vandery:
http://minetest.weareonesoul.com/images/%5Bvandery%5Dfood-generation-underground.png

Cactus Generation Underground in the city of Vandery:
http://minetest.weareonesoul.com/images/%5Bvandery%5Dcactus-generation-underground.png

Wood Generation Underground in the city of Vandery:
http://minetest.weareonesoul.com/images/%5Bvandery%5Dwood-generation-underground.png

For coal generation but burn wood. With the above wood generation there's plenty of wood for coal making.