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Today, each individual’s control over their own computing is at the mercy of
institutions, corporations, and groups with enough power and determination
to subvert the computing infrastructure and exploit its weaknesses. While
using substitutes can be convenient, we encourage users to also build on
their own, or even run their own build farm, such that the project run
substitute servers are less of an interesting target. One way to help is by
publishing the software you build using guix publish so that
others have one more choice of server to download substitutes from
(see Invocando guix publish).
Guix has the foundations to maximize build reproducibility
(see Recursos). In most cases, independent builds of a given package or
derivation should yield bit-identical results. Thus, through a diverse set
of independent package builds, we can strengthen the integrity of our
systems. The guix challenge command aims to help users assess
substitute servers, and to assist developers in finding out about
non-deterministic package builds (see Invocando guix challenge).
Similarly, the --check option of guix build allows users
to check whether previously-installed substitutes are genuine by rebuilding
them locally (see guix build --check).
In the future, we want Guix to have support to publish and retrieve binaries to/from other users, in a peer-to-peer fashion. If you would like to discuss this project, join us on guix-devel@gnu.org.