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January

17 CERN PGDay 2025 en in Meyrin, Switzerland by Swiss PostgreSQL Users Group & CERN
17-19 FOSS Hackathon de in Frankfurt am Main, Germany by Freifunk Frankfurt am Main e.V.
30-31 XMPP Summit en in Brussels, Belgium by XMPP Standards Foundation

Take part in the Call for Participation.

30 CHAOSScon Europe en in Brussels, Belgium by CHAOSS Project
31 The EU Open Source Policy Summit en in Brussels, Belgium by Open Forum Europe

February

01-02 OFFDEM en in Brussels, Belgium by Petites Singularités

Take part in the Call for Participation.

01-02 FOSDEM en in Brussels, Belgium by Fosdem Team
01 Open Collective FOSDEM meetup nl/en/fr in Brussels, Belgium by Open Collective
03-05 Config Management Camp en in Ghent, Belgium by CfgMgmtCamp Team
04-05 State of Open Con 2025 en in London, United Kingdom by OpenUK
14 I love Free Software Day
15-16 Python Barcamp KA de in Karlsruhe, Germany by Python Software Verband e.V.
20 AlpOSS fr in Echirolles, France by City of Echirolles
21-22 International FOSS Hackathon en in multiple cities, International by OS-SCi, FOSSTECH Projects

Take part in the Call for Participation. Deadline: 31.01.2025

28-01 Winterkongress de in Winterthur, Switzerland by Digitale Gesellschaft CH

March

10-11 FOSS Backstage en in Berlin, Germany by Plain Schwarz UG
12 FOSS Backstage Design en in Berlin, Germany by Plain Schwarz UG
13-14 t3chfest es in Madrid, Spain by Volunteers
22-23 Chemnitzer Linuxtage de in Chemnitz, Germany by Individual Network Chemnitz
26-29 FOSSGIS 2025 de in Münster, Germany by FOSSGIS e.V.
26-29 FOSSGIS-Konferenz de in Hamburg, Germany by FOSSGIS e.V.
27 OC3 en/de in Berlin, Germany by Edgeless Systems

April

01-04 PyCamp España in Sevilla, Spain by Python España
03-05 DANTE Frühjahrstagung de in Darmstadt, Germany by DANTE e.V.

Take part in the Call for Participation. Deadline: 28.02.2025

14-15 foss-north en in Gothenburg, Sweden by Free Open Source Software North Conferences ek.för.

Take part in the Call for Participation.

14-15 foss-north en in Gothenburg, Sweden by Free Open Source Software North Conferences ek.för.

Take part in the Call for Participation. Deadline: 01.02.2025

18-21 Easterhegg de in Hamburg, Germany by Chaos Computer Club Hamburg
25-26 GLT25 en/de in Graz, Austria by Verein der Grazer Linuxtage

Take part in the Call for Participation. Deadline: 31.01.2025

26 Augsburger Linux-Infotag de in Augsburg, Germany by Linux User Group Augsburg (LUGA)

Take part in the Call for Participation. Deadline: 01.03.2025

29-30 stackconf 2025 en in Munich, Germany by NETWAYS Event Services GmbH

May

15 Rencontres Professionnelles du Logiciel Libre fr in Lyon, France by Ploss-Ra
21-23 DORS/CLUC en in Zagreb, Croatia by HrOpen & Hulk

Take part in the Call for Participation.

23 Helvetic Ruby en in Geneva, Switzerland by Dimiter Petrov, Hana Harencarova

Take part in the Call for Participation.

June

15-17 Berlin Buzzwords en in Berlin, Germany by Plain Schwarz UG

Take part in the Call for Participation. Deadline: 23.02.2025

17-18 OW2Con'25 en in Paris, France

Take part in the Call for Participation. Deadline: 23.02.2025

19-22 23. Gulaschprogrammiernacht en/de in Karlsruhe, Germany by Entropia e.V. - CCC Karlsruhe
20-21 Opensouthcode es in Malaga, Spain

Take part in the Call for Participation. Deadline: 31.03.2025

July

01-03 Pass the SALT en in Lille, France
14-20 FOSS4G Europe 2025 en in Mostar, Europe by OSGeo, Ecoplan, University of Mostar

Take part in the Call for Participation.

August

16-17 FrOSCon 20 de in Sankt Augustin, Germany by FrOSCon e.V.

Take part in the Call for Participation.

22-29 ConTeXt meeting en in Chmielno, Poland by context group, Ryszard Kubiak
28-31 WAMP de in Rotenhain, Germany by Westwoodlabs e.V.

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