Yes, very cool. My wife and I found out about wicking beds about three years back, and they work very well. While we still have to add water manually, they are an excellent way to grow food with very little water. I am new here and made my first post about our system. Please have a look. I originally got the idea from a series of youtube videos from a gardener in Australia and adapted for our needs. We have more wicking beds to build and look forward to incorporating the float system for self watering.
https://steemit.com/gardening/@specreman/wicking-garden-beds-how-to-have-a-luscious-vegetable-garden-with-minimal-water