Hi, That option I've been dreaming about for a long time! I try to keep cadence with update in astronomy module monthly and having ongoing refresh work for golang collection. Maybe we may have some API output on that type available at , showing the impact ration of the given package and the number of dependents as well? Some quick script (WIP) to calculate that stats based on build system. There is no much work after "guix refresh -u " when I've refreshed Golang packae. From other side but current implementation of pyproject-build-system or python-build-system and related importer/updater in most of the cases just breaks the package completely. It looks like the issue comes from the fact that Python in a massive migration to pyproject.toml (setup.py and setup.cfg are becoming deprecated) which specifies install, test and dev dependencies and during refresh it can't be parsed, so it would block automatic packge refresh. -- Oleg