I have been taking the bedding from the coop and adding it to the run for 2 years and the pine shavings are not breaking down. I think because it’s not a big enough pile to heat up or not enough nitrogen. The chickens don’t spend a lot of time in the run except winter because I let them free in the yard. Did move the bedding and shoved up some of the bottom dirt and sifted it through hardware cloth. I got about a 5 gallon bucket to side dress the plants. I’m hoping that by having it in a 3’x3’x3’ pile I can get it to breakdown faster. I want to make a couple more beds using no dig method but I need alot of compost and mulch to put on the cardboard.If you have limited space, just use the run as your compost bin. Dump everything in the run and let the chickens work it. You will need to sift the chunks out in the spring to get the fine finished compost. Gives the chickens some valuable entertainment in the middle of winter.