The main character farms water on a planet that is mostly sand, orbitting two stars. He trades with people who steal and refurbish scraps of metal, and gets shot at by people who ride around on giant buffalo like creatures that produce blue milk. I don’t think far away magics were taught in their education system when no one could perform them and his “uncle” only knows the religion as causing corruption and ending in the deaths of millions. Likely just thought of as fairy tales.