Hej guess what, this already exists, its called nature!
Snarkiness aside, look into permaculture. It’s a way of gardening that takes very little time since it tries to create a garden that’s in balance so that you don’t have to work hard to keep bare patches of ground or fight “pests” for example. I’m actually quite surprised at what my SO did to our own garden using this method, it’s very lush and green with very little work.
No fertilizer, watering or lasers necessary.