Mine is tiny and completely un-clever! But it's something, I usually just grab about 1/4 cord ish at a time, my former propane cylinder storage cage holds about 22 cubic ft, close to 1/5th of a cord. Thinking about drilling a few holes in the top of it for more rain ingress but I'll wait to see how low the moisture content goes in the dry of winter.
According to the chart, our average moisture equalization where I live will be anywhere from 13 to 17%. Average of the wood in the cage right now is ~ 22%.