Group: Guix/FOSDEM2020

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This page is for tracking anything related with the 2020 GNU Guix/Guile conference and hackathon on Jan. 30th and 31st—right before FOSDEM2020 and the Minimalistic, Experimental and Emerging Languages devroom and the original application minimalistic language devroom.

GNU Guix Days


Annual GNU Guix (un)conference. This event is a FOSDEM 2020 fringe event.


GNU Guix is growing rapidly and has gone from a software packaging system to a full tool stack aimed at reproducible software deployment and development. GNU Guix is a toolkit that allows developers to integrate reproducible software deployment into their applications—as opposed to leaving it up to the user. GNU Guix is based on the GNU Guile programming language which makes it a very versatile and hackable (in the good sense) environment.


Thursday 30th and Friday 31st of January, 2020, the two days before FOSDEM.

Starting at 9:30AM.


Institute of Cultural Affairs (ICAB) Rue Amedee Lynen 8 1210 Brussels (map), Belgium.


We will have some talks in the morning and hacking and discussions the rest of the day. Two days of GNU Guix bliss.

The event targets an audience of Guix developers and users.

In the morning the following presentations are planned:

  1. Guix State of the Union by Ludovic Courtès + Tobias Geerinckx-Rice
  2. Guix Data Service by Christopher Baines
  3. Bootstrapping Intro by Jan Nieuwenhuizen

In pure “unconference” style, the rest of the program will be made by participants as we go, with hands-on sessions organized in sub-groups. Possible session topics that have already been proposed include:

  1. GNU Guix road map
  2. GNU Guix online documentation
  3. Mes and bootstrapping
  4. Reproducibility project
  5. Alternative target architectures (ARM, POWER etc.)
  6. Developing workflows (GNU Guix and GNU Workflow Language)
  7. Support for D in GNU Guix
  8. Demonstration and explanation of The Perfect Setup (Emacs, Geiser, Magit)
  9. Demonstration and live-hacking of Next browser + introduction to the code base
  10. Better build systems for JVM languages in GNU Guix (support Maven, sbt, Gradle, ...)
  11. Reproducible JDK
  12. The Guix System installer
  13. Improve PHP
  14. your topic?

Code of conduct

Be aware that attendees implicitly abide by the code of conduct as stated by FOSDEM.

How to register?

Add your name here and/or send a message to Manolis <> or Pjotr <>. Please email us if you would need on-site childcare to be able to attend.

Note: there is a maximum of 40 participants.


  1. Ludovic Courtès
  2. Pjotr Prins
  3. Manolis Ragkousis
  4. Efraim Flashner
  5. Tobias Geerinckx-Rice (9 to 5, ish)
  6. Christopher Baines
  7. Gábor Boskovits
  8. Andreas Enge
  9. Simon Tournier
  10. Nicolò Balzarotti
  11. Chris Marusich
  12. Jonathan Brielmaier
  13. Danny Milosavljevic
  14. Carl Dong
  15. Pierre Neidhardt
  16. janneke (Jan) Nieuwenhuizen
  17. Martin Becze
  18. Mark Wielaard (Thursday afternoon and Friday)
  19. Tom Tromey
  20. Bengt Richter
  21. Ioanna Dimitriou
  22. Joshua Wirtz
  23. Jelle Licht
  24. Mathieu Othacehe (only Friday)
  25. Jonathan Frederickson
  26. Lex Withofs
  27. Laura Lazzati
  28. Paul Garlick (Friday)
  29. Jonathan McHugh
  30. Lars-Dominik Braun
  31. Pablo Greco (only Thursday)
  32. Robert Smith
  33. Jérémy Korwin (only Friday)
  34. Ivan Vilata i Balaguer (only Friday)
  35. Tobias Platen (only Friday)

(add your name above this line)


Attendance is free. We will ask a voluntary contribution for consumptions.


Sessions Outcome


  • Foundation of Guix Europe

Please contact us if you would like to sponsor the event.