The video: https://youtu.be/7qXgbrIYcFE
Self-explanatory really.
Simple but genius.
This way you can let the topsoil dry (goodbye fungus gnats),
and water (if at all necessary) into the worm tower.
Also then your covercrop can be permanent, selectively and sparsely chopping & dropping here and there, letting some covercrop go to seed, so there’s a micro forest going on perpetually regulating humidity all by itself while also regenerating itself.
Can be applied both inside and outside!