Hey, So I would be interested in such a feature, and I found it being rejected as FS#15143, but I have some questions. It seems the main reason it was rejected was this: " My second argument against this is that users sometimes do local rebuild of official packages, and maybe don't want to mix these packages with official ones in the cache (which could cause integrity check failures next time they upgrade their system). " And I don't understand. Why/how would there be an integrity check failure on upgrade ? I thought integrity check meant that the package(s) about to be installed was being checked. So, during an upgrade, there would be no reason to check this already installed package, no? And if there was an update available, it's the integrity of the newly downloaded package that would be checked, and it would have no reason to fail. What am I not understanding/misunderstanding here? Because I do like this idea and, unless there is an inherent problem with it of course, I might be interested into looking to make a patch to add such an option. Thanks, -jacky Ref: https://bugs.archlinux.org/task/15143