Let's meet at FOSDEM 2026!

We are looking forward to go to FOSDEM 2026, the world's largest gathering of free and open source software enthusiasts. That means it is a great place to meet fellow FOSS folk, so we hope to see you there. On this page we will be collecting all talks, meetups and activities of NLnet, NGI Zero, the NGI pilots and of course the projects we support. So the overview will become more complete as the FOSDEM schedule is being released.

FOSDEM takes place at the ULB Solbosch Campus in Brussels in the weekend of January 31^st - 1 February 1^st 2026. Both before and after there are all kinds of Free and Open Source related events collectively called FOSDEM Fringe.

a table entirely laden with boxes containing hexagonal stickers neatly laid out. Some hands are visible rifling through the assorted stickers. — Hex sticker booth at FOSDEM25

Hex sticker booth

Our hex sticker booth has again been accepted this year. We'll bring north of 300.000 hexagon stickers and everyone is invited to collect hexes of their favorite projects. So drop by to pick up a few stickers and have a chat. We love to hear your questions, remarks, ideas and plans.

BoF rooms

We're organizing two BoF (Birds of a Feather) meetings at FOSDEM. On Saturday there is the NGI Zero network meetup. This gathering is a meet-and-greet for people who are part of, or interested in the NGI Zero ecosystem. Feel free to join! It'll take place on January 31, 12.00 CET at the K.4.401 room.
On Sunday there's the NLnet Office Hour where everybody is welcome to drop by. If you have questions about funding possibilities, are a grantee with ideas or remarks, or just want to come by and say hi. Many of the NLnet team will be there and we are looking forward to meet you. The Office Hour takes place on February 1, 12.00 CET also at the K.4.401 room.

Keynote

This year our Director of Strategy, Michiel Leenaars will be giving the opening keynote speech titled FOSS in times of war, scarcity and (adversarial) AI. He will explore the question: How do geopolitical conflicts on the one hand and the risk of bot-generated (adversarial) code on the other influence the global community working together on Free and Open Source software?

Funding FOSS devroom

For the second year in a row we are co-organizing the Funding FOSS devroom. The devroom brings together developers, maintainers, policymakers, entrepreneurs, donors and funders to explore various funding models and mechanisms that support the longevity and security of FOSS projects. The goal of the devroom is for developers to gain insights into funding strategies, their feasibility, and communication with end-users, while companies, governments, inter-governmental and social organisations as well as individual donors are encouraged to better understand and support developer needs in FOSS projects. The devroom is organized by FSFE, Linux Foundation Europe, Prototypefund and Sovereign Tech Agency, and NLnet.

NixOS and NLnet logos in hexagon sticker format.

NGI Zero related speakers at FOSDEM

The FOSDEM schedule has been released and there are many NLnet and NGI Zero related speakers. If you are a grantee and involved in a presentation or a devroom we have not listed, let us know and we will happily add it!

(Note: The times listed may be off due to schedule changes or errors on our side. You can check the genesis FOSDEM schedule by clicking on the event's title.)

Saturday

10.00 FOSS in times of war, scarcity and (adversarial) AI — Michiel Leenaars (NLnet)
10.30 Introduction to the Modern Email DevRoom — Damian Poddebniak (imap codec), Hans-Jörg Happel (Structured Email), Mauro De Gennaro (Stalwart), Mechiel Lukkien (Mox-Automation)
10.30 CryptPad updates: latest in private real-time collaboration — Ludovic Dubost (Cryptpad)
11.00 KDE at 30: Still looking ahead — Aleix Pol (KDE-Connect)
11.00 Democratise the Fediverse — Matthias Pfefferle (Wordpress-ActivityPub)
11.40 f8 - an architecture for small embedded systems — Philipp K. Krause (f8)
12.00 Amplify Our Voices: Building Digital Sovereignty on the Fediverse — Benjamin Bellamy (Castopod Mobile)
12.00 State of WebViews - Can we fix things? — Niklas Merz (W3CWebview-tooling)
12.00 Sequoia git: Making Signed Commits Matter — Neal H. Walfield (Sequoia-Keystore)
12.00 Mercurial, 20 years and counting: how are we still alive and kicking? — Pierre-Yves David (SoftwareHeritage)
12.30 Funding Lessons Learned Panel — Guillaume Ayoub and Lucie Anglade (Weasyprint)
12.30 Reproducible Builds for Android Apps — Andreas Itzchak Rehberg (IzzyOnDroid)
12.30 Scaling up open-source batteries: what's worth pursuing? — Daniel Fernandez Pinto and Kirk Smith (RedoxFlowBattery)
13.00 PURL: From FOSDEM 2018 to international standard — Philippe Ombredanne (FOSS-supplychain)
13.00 LaSuite.coop: A Public–Cooperative Model for Digital Commons — Timothée Jaussoin (Movim-E2EE-video)
13.00 Open-source HSM-based signing for AOSP-based projects with limited resources: Lessons from CalyxOS signing redesign — Torsten Grote (F-Droid App overhaul)
13.00 The challenges of FLOSS Office Suites — Michael Meeks (Collabora Online/LibreOffice Accessibility)
13.00 Autocrypt 2: Post-Quantum-Cryptography and Reliable Deletion ("Forward-Secrecy") — holger krekel (WebXDC-Push)
13.05 Single-source cross-platform GPU LLM inference with Slang and Rust — Crozet Sébastien (WgMath)
13.20 Unlocking development with ActivityPub Client to Server API — Django Doucet (Wordpress-ActivityPub)
13.25 Exploring time series bike share data with duckdb — Lluis Esquerda (CityBikes)
13.30 The Web Platform on Linux devices with WebKit: where are we now? — Mario Sanchez-Prada (WPE-Android)
13.45 What's new in BlockNote? (The Block-Based, Notion-Style Editor) — Yousef El-Dardiry (TypeCell)
14.00 Luanti mod programming — Felix (Gnucap performance)
14.00 The Servo project and its impact on the web platform ecosystem — Manuel Rego (Tauri-Servo)
14.00 Federated Bookmark Sharing — Rafael Epplée (linkblocks)
14.00 IzzyOnDroid Download Statistics — Sylvia van Os (IzzyOnDroid)
14.00 Forging Digital Sovereignty Ground Up through Local Governments with Open Source Public Digital Infrastructure — Nicholas Gates (OpenForum Europe)
15.05 Nixpkgs Clarity: Correcting Nix package license metadata — Philippe Ombredanne (FOSS-supplychain)
15.10 How to level up the fediverse — Christine Lemmer-Webber & Jessica Tallon (Spritely)
15.15 Collabora Office - off & on collaboration — Michael Meeks (Collabora Online Multi-user Infinite Canvas)
15.15 postmarketOS: what's new? (2026) — Oliver Smith (postmarketOS)
15.30 CRA-by-Design: Protocol-Embedded Compliance for EV Charging Infrastructure — Achim Friedland (EVQI)
15.30 Interoperability regulation in the EU: Opening iOS and Android for Free Software — Lucas Lasota (FSFE)
15.40 Fediverse Integration into (EU) Public Administration - A Fantastic FediVariety Circus — Peter Mechels (Fediverse-PublicAdministration)
16.00 UnifiedPush - Push notifications. Decentralized and Open Source — Daniel Gultsch (Conversations)
16.00 Stalwart: Can Open Source do Gmail-scale Email? — Mauro De Gennaro (Stalwart)
16.20 A wild FASP appears! Integrating your app with Fediverse Auxiliary Service Providers — James Smith (Manyfold-Discovery)
16.20 Crowdsourcing Delay Information — Jonah Brüchert (Kaidan)
16.25 LILA: decentralized reproducible-builds verification for the NixOS ecosystem — Arnout Engelen (Source-based Nextcloud + Onlyoffice) & Julien Malka (NixOS-Clevis)
16.30 Phosh: What's new and where are we going? — Evangelos Ribeiro Tzaras (SMS-CB)
17.15 Citybikes: scraping the world for bike sharing data so you don't have to — Lluis Esquerda (CityBikes)
17.20 Bonfire: Building Modular, Consentful, and Federated Social Networks — Mayel de Borniol and ivan minutillo (Bonfire-Framework)
17.30 raylib: a 12-year adventure as a solo-maintainer — Ray (Raylib)
17.30 Supply chain security meets AI: Detecting AI-generated code — Philippe Ombredanne (FOSS-supplychain)
17.45 Implementing Streams Spec in Servo web engine — Taym Haddadi (Servo-DX)
18.15 Browsing Git repositories with gotwebd — Stefan Sperling (OpenBSD-wifi-WPA3)
18.15 CRA-ppy data: We need better open data for CRA compliance — Thomas Steenbergen (CRAVEX)
18.30 Building a TODO app on top of Forgejo — Jos van den Oever (NLnet)
18.30 Panel: Why is the CRA worth a FOSS maintainer’s attention? — Philippe Ombredanne (FOSS-supplychain)
18.45 Outside the beaten path of CSS — Guillaume Ayoub (Weasyprint) & Lucie Anglade (Weasyprint)

Sunday

09.00 Draupnir: a field report on building community focussed T&S tooling within an open federation — Gnuxie (Draupnir)
09.00 Backtraces for embedded Linux C and C++ programs — Mathieu Othacehe (GUIX)
09.00 Introduction to Local First & Welcome to our devroom — Niko Bonnieure (NextGraph) & Yousef El-Dardiry (TypeCell)
09.00 Welcome to the SBOMs and Supply Chains devroom! — Thomas Steenbergen (CRAVEX)
09.00 Welcome to the Gaming and VR Devroom — Vadim Troshchinskiy Shmelev (Overte-visualscripting)
09.05 Verilog-AMS in Gnucap — Felix (Gnucap performance)
09.10 The day in a life of a SBOM — Anthony Harrison (BIDS)
09.20 Bugbane: Simplifying consensual Android forensics — Giulio B and Davide 'thezero' (Bugbane)
09.30 Taming your Yjs documents — Bartosz Sypytkowski (Yrs Undo)
09.40 F3D, Fast and minimalist 3D Viewer — Mathieu Westphal (F3D)
10.00 Modern Development Tools and Practices for GNU Guile — Andrew Tropin (Scheme Testing Framework)
10.30 Matrix State of the Union — Amandine Le Pape (Matrix)
10.30 Guile development outside of Emacs — Jessica Tallon (Spritely OCapN)
10.30 Public Procurement for Digital Sovereignty — Sebastian Raible (Apell)
10.35 GIS are in the plugins — Ilya Zverev (EveryDoor)
10.35 Porting game engine renderer to Vulkan as an absolute beginner — dr Karol Suprynowicz (Overte)
10.45 An Introduction to Law and Free Software — Gabriel Ku Wei Bin (FSFE)
10.50 The GNU Name System, its applications and roadmap — Martin Schanzenbach (TALER Lookup Service)
11.00 Wastrel: WebAssembly Without the Runtime — Andy Wingo (Whippet)
11.00 Lisp is clay: the power of composable DSLs — Christine Lemmer-Webber (Spritely)
11.00 NextGraph: E2EE sync engine, SDK, graph DB, and reactive ORM — Laurin Weger & Niko Bonnieure (NextGraph)
11.10 GStreamer 1.28 and beyond — Tim-Philipp Müller (librice)
11.30 Parula - New features on the new email app — Ben Bucksch (Mustang - UI components)
11.30 Beyond SBOM: Integrating VEX into Open Source Workflows — Piotr P. Karwasz (MavenHeaven)
11.45 Namecoin and Tor as a Public Key Infrastructure — Jeremy Rand (Socks Trace)
12.00 Querying DNS for software updates — Mechiel Lukkien (Mox-Automation)
12.00 LibrePCB 2.0 – More Than Just a New Look — Urban Bruhin (LibrePCB)
12.00 BlockNote, Prosemirror and Yjs 14: Versioning and Track Changes — Yousef El-Dardiry (TypeCell)
12.10 Podlibre: Podcast Audio Editing for the AI Age — Benjamin Bellamy (Castopod Mobile)
12.20 sbom-cve-check: Lightweight open-source CVE analysis tool for your embedded systems/a> — Benjamin Robin (Genealogos)
12.25 Open source firmware for high assurance confidential infrastructure — Piotr Król (Open-source firmware for modern AMD boards)
12.30 Pulling 100k revisions 100× faster — Pierre-Yves David (SoftwareHeritage)
12.40 LibreOffice and Collabora Online - how we managed to automate SBOM generation for a large legacy project — Thorsten Behrens (ZetaOffice)
13.00 Teamtype: multiplayer mode for your text editor – towards a Collaborative Editing Protocol — Moritz Neeb and blinry (Teamtype)
13.20 Forget SBOMs, use PURLs — Philippe Ombredanne (FOSS-supplychain)
13.40 Capability Based Security in Redox — Ibuki Omatsu (RedoxOS-Signals)
13.40 Collaboration, Iteration, Documentation, and Validation: An OpenFlexure Microscope Story — Julian Stirling (OpenFlexure)
13.40 Miru: Building a collaborative video editor with offline support — Taye Adeyemi (Miru)
13.45 OCapN: The secure, decentralized protocol of the future — Jessica Tallon (Spritely OCapN)
13.55 GNU Octave in education: an insight beyond engineering into statistics and data analysis — Andreas Bertsatos (GNU Octave datatypes)
14.00 Rust in Mercurial: The wider benefits — Pierre-Yves David (SoftwareHeritage)
14.05 Modular in the DAW: Cardinal origins, tips and tricks — Alexander Chalikiopoulos (dreamer) (Heavy Compiler Collection )
14.20 KiCad Status — Wayne Stambaugh (KiCad)
14.30 Package management in the hands of users: dream and reality — Ludovic Courtès (Distributed Shepherd)
14.35 NextGraph: E2EE decentralized platform & framework — Niko Bonnieure (NextGraph)
14.45 Bonfire: Modular Communication Tools on the Open Social Web — Mayel de Borniol & ivan minutillo (Bonfire-Framework)
15.00 FreeCAD - state of affairs — Yorik van Havre (FreeCAD-IFC)
15.55 Willow - A family of peer-to-peer storage protocols — Sam Gwilym (Willow)
16.00 Understanding developer needs - User research in Forgejo — Otto Richter (Forgejo)
16.05 qaul.net - Internet Independent Wireless Mesh Communication App — Mathias Jud (P2P-channels)
16.20 Rehorse: sheet music and rehearsal app for bands — Jos van den Oever (NLnet)
16.30 Load Testing Real React Applications for Production Performance — Mohammed Zubair Ahmed (reqwest)
16.45 Independent and sustainable audio publishing with Faircamp — Simon Repp (Faircamp)

Devrooms

While of course you should be in all dev rooms simultaneously for a total information overload, the density of NGI Zero related talks in the following rooms might be higher than elsewhere.

Stands

During FOSDEM the university is filled to the brim with stands where you can meet the people behind many FOSS organisations, communities and projects (and collect stickers). Here is FOSDEM's overview of all the stands and their place on the map. Below is an overview of NLnet/NGI Zero related stands.

Codeberg and Forgejo
Delta Chat
F-Droid, /e/OS and OW2
Free Software Foundation Europe
GNOME
Hex sticker booth by NLnet Foundation
Izzy-onDroid
KDE (Plasma Wayland, Connect, KDE Plasma genstures, Accessible KDE File Management, ...)
KiCAD + FreeCAD
LibreOffice Community (LO Accessible, LO Online, P2P, CRDT, Typography, Bookproject, Follow-Me Slideshow, etc)
Linux on Mobile
Luanti
MariaDB Foundation
Mastodon
Nextcloud
Nix and NixOS
OpenFlexure Microscope
OpenSuse
OW2 FOSS community / Murena degooglized phones and suite
postmarketOS
Qubes OS and GenodeOS
Software Heritage
The Matrix.org Foundation
Tor / Tails / NoScript
XMPP & Realtime Lounge

FOSDEM Fringe

Coming to Brussels and want to have an early start? There are also events in the FOSDEM Fringe organised by or featuring projects we support.

The annual GUIX Days, an annual (un)conference for people interested in GUIX and GUILE. sold out
The FOSS license and security compliance tools developers and users workshop organised by AboutCode is a gathering for people who are interested in open source license and security compliance bringing together developers and users of open source compliance tools.
The FreeCAD Day is a pre-conference for users and developers of the open-source parametric 3D design package FreeCAD.

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