title: Guix & reproducible builds at LibrePlanet 2018 date: 2018-04-05 14:00 author: Ludovic Courtès tags: Talks, Reproducible builds --- [LibrePlanet](https://libreplanet.org/2018/), the yearly free software conference organized by the Free Software Foundation, took place a week ago. Among the many great talks and workshops, David Thompson, a core Guix developer also working as a DevOps, presented many aspects of Guix and GuixSD in his talk, _Practical, verifiable software freedom with GuixSD_ ([video](https://media.libreplanet.org/u/libreplanet/m/practical-verifiable-software-freedom-with-guixsd/), [slides](https://www.gnu.org/software/guix/guix-libreplanet-practical-freedom-20180325.pdf)). In a similar domain, Chris Lamb, current [Debian](https://debian.org) Project Leader and a driving force behind the [Reproducible Builds effort](https://reproducible-builds.org), gave a talk entitled _You think you're not a target? A tale of three developers..._ ([video](https://media.libreplanet.org/u/libreplanet/m/you-think-you-re-not-a-target-a-tale-of-three-developers/), [slides](https://salsa.debian.org/reproducible-builds/reproducible-presentations/tree/master/2018-03-24-libreplanet-2018)). #### About GNU Guix [GNU Guix](https://www.gnu.org/software/guix) is a transactional package manager for the GNU system. The Guix System Distribution or GuixSD is an advanced distribution of the GNU system that relies on GNU Guix and [respects the user's freedom](https://www.gnu.org/distros/free-system-distribution-guidelines.html). In addition to standard package management features, Guix supports transactional upgrades and roll-backs, unprivileged package management, per-user profiles, and garbage collection. Guix uses low-level mechanisms from the Nix package manager, except that packages are defined as native [Guile](https://www.gnu.org/software/guile) modules, using extensions to the [Scheme](http://schemers.org) language. GuixSD offers a declarative approach to operating system configuration management, and is highly customizable and hackable. GuixSD can be used on an i686, x86_64 and armv7 machines. It is also possible to use Guix on top of an already installed GNU/Linux system, including on mips64el and aarch64.