Trench composting in permaculture?

I’d like to experiment with “trench composting” (or rather, just digging a shallow hole and dropping kitchen scraps in it, here and there around the garden, a new place each time), as an easier, less-work way to compost, but I’m concerned with the digging part and don’t want to disturb the soil and roots. Any thoughts on whether this is a good idea, if it’s compatible with permaculture?