Package can have additional fields in guix repository, like
architecture, version, buid_status, source_type
build_status may contain such info.
source_type could show if the package source url is one of those public git services (thus, user could enable proxy first).

Dec 15, 2018, 6:54 PM by
On Fri, 14 Dec 2018 05:41:37 +0100
Ricardo Wurmus <> wrote:
The default use case is for users to have substitutes enabled and to
fetch binaries from a build farm. The build farm tries to build all
packages, but not all builds succeed. The daemon caches build

This information, however, is not available for users. The default
behaviour of Guix is to attempt building the package locally. This is
fine for packages that the build farm hasn’t attempted yet, but it is
a waste of time when the build has already been attempted without


Very good idea.