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FOSDEM 2012 Announcement

FOSDEM 2012 will take place at at the Université Libre de Bruxelles, in Brussels on Saturday 4 and Sunday 5 February 2012.

This page is for organizing GNUstep's participation in the event. This includes the organization of a developer meeting the Friday before FOSDEM.


  • Lars Sonchocky-Helldorf (lars dot sonchocky dash helldorf at hamburg dot de)
  • is somebody else interested in lending me a hand?

Who will attend FOSDEM

One of the main reasons people attend the event is that you can meet, and talk directly to, other developers, whom you would otherwise meet only virtually (on mailing lists, emails, newsgroups, IRC etc.). We expect many lead developers and contributors to be present, so if you have never met them, you shouldn't miss this occasion!

The following is a list of people of GNUstep fame who have confirmed (or denied) that they will be able to join us at the GNUstep meeting at FOSDEM 2012:

Name Friday

3. Feb


4. Feb


5. Feb


6. Feb

Special comments / topics Hotel
Lars S.-Helldorf Yes Yes Yes No event organizer Argus
Nikolaus Schaller No Yes Yes No QuantumSTEP + Openmoko / Argus
Quentin Mathé Yes Yes Yes No Étoilé
Niels Grewe Étoilé, DBusKit
David Chisnall Étoilé
Sebastian Reitenbach Yes Yes Yes No OpenBSD packages, GAP, OpenGroupware Hotel The Moon
Nicolas Roard ? Étoilé
Fred Kiefer Yes Yes Yes No GNUstep (GUI, Cairo) Hotel Aqua
Riccardo Mottola ? GNUstep, GAP
Gerold Rupprecht ? Yes Yes ? GNUstep
Richard Frith-Macdonald Late Yes Yes No GNUstep Argus
N.N. t.b.d. t.b.d. t.b.d. t.b.d. t.b.d.

Dev-Room Presentations and Events

The room at out disposal will be AW1.126 (capacity is 72 seats (this is more than twice of what we had the years ago); in the building "AW"), -- on Saturday 2011-02-04 from (to be confirmed) 11:00 to 19:00

Call for participation

We are looking for people who want to give a talk, moderate a discussion, hold a hand ons (practice) / hacking session or organize a code sprint. Please send your proposals to GNUstep discussion list, the organizers mentioned above or - if you've got a wiki account - enter them right here. At first a title, a short summary, proposed duration and a preffered time slot would do, so we can start scheduling as soon as possible.

deadline for filing is t.b.d., deadline for the papers is t.b.d.

Note: The FOSDEM organizers strongly recommend a granularity of 15 minute blocks. So if a talk is just 15 (lightning talk), 30 or 45 minutes long - fine! But we should have 15 minutes breaks between the talks so that the visitors have enough time to find a seat and the presenters have enough time to get ready.

List of submitted talk/discussion/session proposals

Please submit through *GNUstep discussion list* until *2011-12-31*

Wishlist for talks/discussions/sessions

Enter talks/discussions/sessions here you would be interested in.

  • GNUstep Progresses and Roadmap
  • CoreBase and CoreGraphics/Opal in GNUstep


Time Slot Author Title / Abstract Kind Slides
Saturday, Feb 04, 2012
11:00 - 11:15 GNUstep Developers GNUstep Developer's Meeting

Meet the GNUstep developers face to face, discuss current afairs of GNUstep, share news about the latest development and plans on GNUstep, improve collaboration between the several GNUstep related projects

meeting, discussion -
11:15 - 11:45 Sebastian Reitenbach OpenBSD GNUstep ports update

Topics covered:

  • Why the hell on OpenBSD
  • How easy it is to create a new GNUstep port
  • What's new compared to last year
  • Problems I encountered over the last year
  • Goals for the next year
talk File:OpenBSD-ports-FOSDEM-2012.pdf
12:00 - 12:30 Sebastian Reitenbach OpenGroupware - Phoenix from the ashes

Topics covered:

  • short history of OpenGroupware, overview of its features
  • porting effort from gnustep-make 1 to gnustep-make 2, and from libFoundation to gnustep-base
  • OpenGroupware is now based on SOPE fork from the SOGo team, lots of bugs in SOPE got fixed
  • talk about some new features
  • OpenGroupware-5.5rc1 (I hope to agree with Adam to release it even before the FOSDEM)
  • short Demo
talk File:OpenGroupware-FOSDEM-2012.pdf
12:45 - 13:30 Sebastian Reitenbach A GNUstep Applications Overview
  • it will feature GAP (GNUstep Application Project)
    • introduce the project, and its goals
    • cover some of the applications found there
  • it will also include the usual known suspects: GWorkspace, ProjectCenter, Gorm, ...
  • it will also cover some other nice GNUstep applications found scattered all over the web, for example:
    • CDPlayer, Burn, GNUMail, SimpleAgenda, Zipper and more
  • show/demonstrate some of the applications live
talk t.b.d. link to slides
13:45 - 14:15 Fred Kiefer GNUstep GUI: Recent Developments - Graphics and Text
  • New features in the text system this year
  • Resolution Independence/scale factor support
  • Other graphics improvements
  • Demo
talk File:Gnustep-gui-FOSDEM-2012.pdf
14:30 - 15:00 Quentin Mathé Étoilé: What has been done over the past year and what's next?

In this presentation, we will take a look at the Étoilé progresses over the past year. We will summarize our work on both our core frameworks and GNUstep. We will also discuss the project status in a broader way, and what can be expected in 2012.

talk t.b.d. link to slides
15:15 - 16:00 Richard Frith-Macdonald Enterprise Control, Configuration and Logging/Alarming using GNUstep-base

1. An overview of the problem of dealing with multiple server processes on multiple hosts and sites. How to provide fault tolerance and how to scale up without losing control. 2. A discussion of the use of the basic technologies such as Distributed Objects and property lists etc to implement these systems. 3. Control ... how we start/stop server processes, prevent duplication of processes, support automated restart, and query the state of processes. 4. Configuration ... how we provide specific configuration to each process under central control, yet allow those servers to operate independently. 5. Logging/Alarming ... how we provide and manage simple and consistent audit/debug logging facilities for server processes, and how we integrate with SNMP.

talk File:EC-FOSDEM-2012.pdf
16:15 - 17:00 Quentin Mathé CoreObject : An Object Store built for Revision Control and Desktop Environment Needs

This talk will introduce CoreObject, an Object Store built from the ground up to support features such as selective undo, live collaboration without locking, branching, etc. not found in Object-Oriented Databases until now. CoreObject is not based on Operational Transformations but a new Object Graph Diffing and Merging model, that makes possible to integrate these revision control features into a database and ensure they scale to large object histories. From a desktop environment perspective, revision tracks are available to create interactive views on the history and support multiple undo/redo granularity levels. CoreObject also comes with a collection of reusable object models to solve recurrent use cases in document management, organization and edition.

talk t.b.d. link to slides
17:15 - 18:00 David Chisnall New Features of Objective-C

With iOS 5 and OS X 10.7, Apple introduced a number of new Objective-C features. With the release of version 1.6 of the GNUstep Objective-C runtime and version 3.0 of clang these are now all available to GNUstep developers. The new features include better data hiding, automatic reference counting, and a number of other features. This talk will cover these features, as well as some of the extensions beyond Apple's version and the improvements in Objective-C performance since FOSDEM last year.

talk link to slides
18:15 - 19:00 Dr. H. Nikolaus Schaller QuantumSTEP: new frameworks and future directions

QuantumSTEP is a technology study framework and application suite that is partially based on GNUstep. It aims at consequently using Objective-C on embedded and portable devices. This talk describes the latest additions to the frameworks: CoreLocation, MKMapKit, CoreWLAN, CoreTelephony and demonstrates how they work on the new GTA04 hardware.


Suggested Hotels

last year Sebastian Reitenbach and Nikolaus Schaller have booked here. Ask them on the mailing list on their Experience:

Louise Hotel

  • 40, rue Veydt
  • 1050 Bruxelles
  • Sebastian Reitenbach says:
    • book via: , which is cheaper than the offer on the hotel site. The reservation includes breakfast.
    • free WiFi is available
    • it costs only about half the price of the Argus hotel from last year.
    • Its near avenue louise, only a foot walk away from the university campus.

NOTE Dec 2011: appears to have changed owner and is no longer listed in online booking portals

Argus Hotel Brussels (Belguim) (good experiences from past years)

  • 6, Rue Capitaine Crespel
  • B-1050 Bruxelles, Belgique
  • Tel +32 2 514 07 70
  • Fax +32 2 514 12 22
  • Rate: 65/night - but you have to ask for the 'GNUstep/FOSDEM' discount
  • has free Internet ;-)

Normal prices are here:

but there are discounts available:

and we'll ask for even better discounts for a group booking (we need to know who's will be there for that!)

Some people booked that hotel in the last years: Nicolas, Marcus, Helge ,Lars.

Sun Hotel in Brussels (Belguim) (not recommended)

  • Rue du Berger, 38
  • 1050 Brussels (near Porte de Namur)
  • Tel : +32(0)2 511 21 19
  • Fax : +32(0)2 512 32 71
  • 50 EUR/Single room with breakfast
  • 22 rooms total
  • 3km distance to University

has internet access, will make breakfast room available for developers after 11:00 am. Two electrical plugs for breakfast room, so need extension cord with additional plugs. Ask for first or second floor rooms close to reception for good wifi connections.

Hotel Sabina in Brussels (Belgium)

  • Rue du Nord 78
  • B-1000 Brussels
  • Tel: (32)2 218 26 37
  • Fax: (32)2 219 32 39

(very good rating by visitors) 63 EUR/Single with breakfast 8 single only + 16 double rooms 4,2km distance

Hotel Mozart in Bruxelles (Belgium)

  • Rue Marché aux Fromages 23
  • B-1000 Brussels
  • Tel +32 2 502 66 61
  • Fax +32 2 502 77 58
  • Email

70 EUR/Single room NO breakfast WLAN

51 rooms total 4,2km distance

We are open to other suggestions. Please take into account distance to the University and access to public transportation.

A quick introduction to Brussels:

If you want to participate, you need to create an account and send a mail with your user name to gnustep-webmasters [AT] to request write-access. We are sorry for the inconvenience, but this procedure has become necessary to prevent SPAM'ing of this site.