In UNSONG, the webnovel linked in my signature, the angel Uriel is "running" the earth through a ridiculously large collection of code that explicitly handles everything, like the way rivers flow or how piano playing works or the days of the week
I always find it interesting to think about the difference between this and the ultra compact universe we actually live in where everything is generated by a physics model with 30 variables or something. In the UNSONG verse, you could think about things like "what we changed the part where everything stats to become dusty", whereas in the real universe, stuff like this is always just a natural consequence of more fundamental things, and the more you understand what's going on, the more you realize that it couldn't be any other way.