3 pot plan

hi. ive got an idea 3 pots ranging big to small to fit inside each other leaving approximately 10 to 15cm gap between. smallest centre pot is for olla style irrigation. middle pot with holes drilled in the side is the planting area and big exterior pot is for vermicompost, with biochar at the bottom?, the holes in the middle pot are to give acces to worms to deliver nutrients in the planting area.
i dont really like growing in pots and dont thinks its very permaculture? but another idea, could this maybe be used to transform dirt into soil while growing some hardy veg by mixing the contents after harvest. havent tryed this design yet but think it would work best for annuals. sory im new here hope im posting this correctly.

Hi Sonny and welcome to Permies, we’re thrilled that you’re here! I believe it’s outside the box thinking that’s at the heart of permaculture. Your idea certainly fits the bill as far as I’m concerned. I would love to see this in a physical form.
I haven’t raised worms in years so my thoughts may be off. Do you think the worms would need a bigger area? It seems like being on the outside would subject them to larger temperatures swings than they would like. Again, I could be way off.
I hope you follow through with making this and keep us up to date.

thank you for the decent reply it is encouraging. i started vermicomposting at the beginning of last summer and yea i dont think they liked the heat.
(we live in spain) they're in an old metal wheel barrow under a tree. they've been a lot more productive in these colder months. ive also been placing makeshift inground worm bins in the garden. they can then escape the heat of the day and come back at night, so im thinking they've also got all the planting area of the 3 pot plant to hide and rehydrate near the center terracotta pot during hotter times. thanks again. will give it try and let you know

I really like this idea! I don't have room for an pot that big at the moment, but I will definitely give this a try indoors once I have my own place.