, Since last year, we gave the following talks at the following venues: ? INRA MIA Seminar, 201954-02.

?. Workshop, , 201955-03.

,

?. Aramis-plenary, Ludovic Courtès) ? SciCloj Web Meeting, 201956-05.

?. Fosdem-;-ludovic-courtès and E. Flashner, Pjotr Prins) We also organised the GNU Guix Days 60 , which attracted 35 Guix contributors and ran for two days before FOSDEM 2020. Training Sessions The PRACE/Inria High-Performance Numerical Simulation School 61 that took place in November 2019 contained an introduction to Guix and used it throughout its hands-on sessions. A Guix training session also took place at Inria, 2019.

, Personnel GNU Guix is a collaborative effort, receiving contributions from more than 60 people every month-a 50% increase compared to last year. As part of Guix-HPC, participating institutions have dedicated work hours to the project, which we summarize here. ? CNRS: 0.25 person-year (Konrad Hinsen) ? Inria: 2 person-years (Ludovic Courtès, Maurice Brémond, and the contributors to the Guix-HPC channel: Florent Pruvost, Gilles Marait, Marek Felsoci, Emmanuel Agullo, Adrien Guilbaud) ? Max Delbrück Center for Molecular Medicine (MDC): 2 person-years (Ricardo Wurmus and M?d?lin Ionel Patra?cu) ? Tourbillion Technology: 0.7 person-year (Paul Garlick) ? Université de Paris: 0.25 person-year, Efraim Flashner and Pjotr Prins) ? Utrecht Bioinformatics Center

, same vein, we are also interested in adapting Mohammad Akhlaghi'sreproducible paper template 64 to take advantage of Guix. There's a lot we can do and we'd love to hear your ideas 65 ! 64