Last spring I had a c. 0.75 cubic metre bin of compost, which I passed through a coarse wire filter, collecting the fines to put down below the fruit trees and along the raspberry rows, on the salad bed etc etc.
I used the coarse stuff left on the filter to cover my paths and had enough to cover around 20m * 0.5m on our growing area. The sorts of things remaining were tomato hauls, broad bean hauls, potato haulms etc.
It rotted down perfectly over the next 12 months and, although a few grass clumps grew out of it, they could be weeded easily as and when.
Slugs last year for whatever reason were much less frequent than previous years, so the strategy didn’t provide haven for the little rotters.