Deep litter, or deep bedding? They aren't the same, and require different set ups to work. Here's a really good article, mostly about deep bedding, but it explains the difference:
https://www.backyardchickens.com/articles/using-deep-bedding-in-a-small-coop.76343/
I have deep bedding in my...
Poop board
This probably catches 90% of the poop in the coop. Cleaning is a snap. PDZ on the poop board, a cat litter scoop, and a bucket. Done in about a minute. The coop does not smell at all, unless someone drops a cecal poop, or I have the poop bucket open.