I’m sure it’s been done as all you would need is a typical hempy bucket on top of a drain table.
I still havent gotten around to trying hempys although I’ve been wanting to try them for a while. Hell I was super close to ordering a set of AutoPots which are essentially the same thing but with auto top-ups. Problem is I like to run a lot of plants to ensure I get the most out of my sqft. That means running in smaller pots which just aren’t suitable for a hempy.
Maybe I should try it out in the little 2x2. I also wanted to do a coco+ewc+amendments type deal with which I’m sure hempys would still work. Or blumats, god I just cant make up my mind and meanwhile a tent is going unused lol