Events in room AW1.120

Digital Public Infrastructure is needed for resilient societies in Europe, but not just there: All over the world, government and civil society offer digital services to their constituencies. And increasingly, they have become aware of the risks that come with using infrastructure owned by a few large companies under a jurisdiction that traditionally was not necessarily ranking their interests very high and these days have become rather unpredictable. The judges and employees of the International Criminal Court are making this very visible, losing their digital life due to being sanctioned.

This session shows how the GovStack [1] initiative empowers government and societies by openly specifying building blocks for such services, thus avoiding the dependencies. The presenter has contributed to the cloud building block [2]. Naturally, the specifications also need implementations which can be qualified for the GovMarket [3], with a strong preference for Open Source solutions.

The presenter will present the specifications and will also provide insight into the OSS implementation for the cloud building block. He can report on cloud trainings in African countries and work done with GIZ, ITU and UNICC to empower these countries to create modern IT without falling into the dependency trap that European countries by and large have fallen into.

[1] https://govstack.global/ [2] https://cloud.govstack.global/ [3] https://govstack.global/our-offerings/govmarket/

Digital public products need sustainable vehicles

https://www.publiccode.net/public-product-organizations

For almost 10 years, the Foundation for Public Code has been working with public administrations and their partners to better develop public digital infrastructure together. Through many collaborations between cities., states, and other public institutions, we have come to realize that all projects that hope to become sustainable implementations in the context of the public sector would benefit from a well formed nonprofit vehicle that has a strong governance model, financial model, community practice, open license, and continuous integration process. We have been working with multiple members state governments in the European Union, and with several in the European commission, on defining a legal form for a new type of NGO that we call the public product organization.

The PPO, a non-profit vehicle built specifically to develop and steward an open digital public asset [like a software product, dataset, content database, or machine learning model] would become the hub for collaborations among a constellation of public and private partners and establish a strong governance model, provide context and support for a community of practice, and maintain access to an array of developers who could take on specific work packages set out in a shared roadmap, or do bespoke implementations for specific local administrations.

We believe that building the policy infrastructure to enable the easy creation of vehicles that allow for this type of collaboration will unlock an economy that thrives based on the contribution of a huge network of small software development studios across Europe. By enabling the creation of an NGO subtype that is specifically qualified to serve as a steward of digital assets, we can de-risk institutional engagement with open source options in procurement, and begin to design sustainable funding mechanisms that support a newly flourishing ecosystem of digital public infrastructure.

The Foundation for Public Code have served in the process of the creation of products, born from the pioneering work of teams in public administrations and their vendors, who have created some of the most celebrated digital public infrastructure in Europe. In the past, we have called ourselves "codebase doulas", helping products move out of a development cycle funded by a single public institution, which leaves them vulnerable to political change and less capable of engaging with an array of partners at peer administrations. Now we are helping guide projects toward realization as fully collaborative nonprofit stewardship vehicles. Projects like Decidim [https://decidim.org/], X Road [https://x-road.global/], DIIA [https://expo.diia.gov.ua/], and Gov.UK Notify [https://www.notifications.service.gov.uk/]

This roundtable will bring together FOSS product owners and governments to engage in a strategic discussion around two interrelated areas: 1) How to assess the technical maturity using the draft Universal Software Maturity Indicators (v0.1) https://github.com/DPGAlliance/CoP-Maturity-Indicators 20 How to assess institutional readiness of government to adopt, scale, and maintain FOSS projects in the context of Digital Public Infrastructure (DPI)

The discussion will explore how these two dimensions: software maturity and institutional readiness can be better aligned to guide investment decisions, promote responsible implementation, and reduce barriers to adoption across countries and sectors.

Specifically, this session aims to: - Collect multi-stakeholder feedback on the draft Universal Software Maturity Indicators, including their structure, clarity, and relevance across diverse implementation contexts. - Explore what governance or incentive mechanisms are needed to ensure that such assessments are actually used—for example, in procurement, donor funding, or partnership processes. - Initiate dialogue on how to assess government readiness to adopt and scale FOSS and DPIs, with reference to the existing tools, such as the E-government Development Index, the World Bank's Open Data Readiness Assessment

The roundtable will provide space for constructive discussion, exchange of experiences, and co-creation of next steps toward strengthening maturity and scalability of FOSS from both sides, software and government readiness. This session will ultimately build alignment with stakeholders to explore solutions to share challenges regarding maturity indicators.

1 year ago, EU OS put out an architecture for a common Desktop Linux for the public sector. Since then, EU OS had many closed-room conversations with public servants from several member states and with various open source communities. EU OS also published a how-to for a DIY Proof-of-Concept (PoC). This talk explains briefly the vision and PoC of EU OS, gives a summary of the feedback received so far and formulates the public sector expectations on the underlying Linux distribution.

Across Europe, institutions are seeking credible, sovereign, open alternatives to proprietary cloud platforms. France’s public digital agency, DINUM, took a bold step in that direction by developing La Suite, a fully open-source service stack. What is unique is not only the openness of the code, but the ambition: that a public administration can edit and publish digital commons for the public good.

But building a commons is only the first step. Ensuring long-term adoption, usability, and sustainability requires an ecosystem. This is the role of LaSuite.coop, a SCIC (Société Coopérative d’Intérêt Collectif), which extends La Suite beyond the administration to local governments, universities, associations, cooperatives, and civil society. As a democratic, multi-stakeholder cooperative, LaSuite.coop enables users not just to access the tools, but to co-govern them — reclaiming strategic control over their digital environment.

LaSuite.coop brings together several open-source service providers — Open Source Politics, Yaal, lebureau.coop, Galae— who mutualise development, DevOps, hosting, support, UX, and community engagement. This model funds open-source development sustainably without enclosure, venture capital, or extractive business models.

This talk explores how La Suite and LaSuite.coop illustrate a public–private–commons partnership model:

a public entity creating and guaranteeing the commons,

a cooperative ecosystem maintaining and scaling it,

a community steering its evolution,

and a sustainable business model aligned with the public good.

We believe this hybrid model offers a concrete blueprint for future European digital commons.

In late 2023, DINUM (the French Interministerial Digital Directorate) set out to answer a simple question: How do you turn promising national open-source products into shared European products? Two years later, after 2 consortium projects, cross-border hackathons, and several experiments with EU funding mechanisms, we have accumulated a set of practical insights forged through coordination with other EU partners

This talk offers an experience-based walkthrough of what worked, what didn’t, and what we wish we had known earlier. Attendees will leave with concrete takeaways for initiating or strengthening cross-border open-source collaborations within public administrations. We hope to invite partners like Zendis or the Lisbon Council to bring their perspective to these cooperations.

1. Why we started

For some of DINUM products communities grew rapidly inside France, but we wanted to test whether it could become part of Europe’s shared digital infrastructure (Eurostack). Our goal was not to “export” code, but to evaluate:

• how to co-develop open-source modules with other Member States,
• how to make reuse realistic across different administrative cultures
• and how to try to pool efforts and resources and leverage EU funding to support sustainability rather than siloted prototypes.

2. What we tried (and what we learned)

This objective can be accomplished through the establishment of a European strategy for the funding and development of open source products led by member states

• Seek out other enthusiastic European partners capable of co-developing or utilizing open source digital products to increase the number of active users in the EU
• Pinpoint the most appropriate European funds for these topics to pool and leverage national investments
• Submit applications for relevant project calls with suitable partners
• Promote awareness within member states, particularly among product/project managers, about the opportunities to work with open source with European partners.

Use case 1 : The 100Days Challenge: iterative hackathons, real code Use case 2 : GovTech4All: 16 partners, 3 pilots, 3 sustainability challenges

We also see this talk as an opportunity to inform and connect with European partners across various administrations to encourage cooperation and lay the groundwork for future projects

While digital sovereignty is increasingly prompted on European and National levels, the urgency and risks implied have yet to reach the regional and local levels of government. Building robust public digital infrastructure and services on open source foundations have potential both in addressing risks while also providing a substantial economic up-side considering how public digital services are mirrored across regional and local borders. This talk shares insights from a cross-country, multiple-case study investigating how collaboration, sharing, and reuse among local governments are actively forging sovereignty from the ground up.

Drawing on detailed examples—including democratic engagement platforms, public desktop solutions, open data infrastructure, parliamentary transparency tools, and national public transport systems —the session highlights governance models and practical mechanisms enabling local actors to translate policy ambitions into operational, interoperable, and sovereign public digital infrastructure. By foregrounding how municipal IT teams partner with foundations, non-profits, and each other, the presentation illustrates how public digital infrastructure that can be adapted and reused across borders, tailored to local needs yet scalable for European cooperation.

Attendees will gain concrete recommendations for institutionalising open source in public service delivery, developing community capacity, and ensuring public values are embedded in digital infrastructure. The session advocates for bottom-up, collaborative approaches, demonstrating that digital sovereignty is not merely a national top-down project. Attendees, including policymakers, practitioners, and technologists eager to operationalise digital sovereignty at local and regional levels, will benefit from actionable narratives and strategies grounded in real, European experience.

The full report with all case studies are openly available via OSOR: https://interoperable-europe.ec.europa.eu/collection/open-source-observatory-osor/news/multiple-case-study-public-sector-open-source

Sovereign software in the cloud? Many projects are taking care of that. FOSS services running on servers? Lots of excellent choice.
But what about your office, the place where you work? Is your local network just invisible infrastructure at the mercy of whatever vendor you picked?

This talk will show you how we built and operate the "Flurfunk" network prototype at BSI (German Federal Office for Information Security). Flurfunk is a Proof of Concept wireless and wired network with a sizable number of human users with purely FOSS infrastructure: Routers, Switches, WiFi Access Points and a Certificate Authority, all of them running FOSS firmware, operating systems and services. This whole infrastructure is centrally orchestrated and requires almost zero maintenance.

The magic lies in OpenWrt https://openwrt.org/ (for the network components) and Smallstep step-ca https://smallstep.com/open-source/ combined with OpenSSL https://www.openssl.org/ (for the CA), as well as Debian https://www.debian.org/ , Das U-Boot https://u-boot.org/ and coreboot https://www.coreboot.org/ (behind the scenes).

Yes, the network supports the latest and greatest in authentication standards (WPA3 Enterprise), but it also offers user-friendly setup for users and admins. This includes automated certificate rollout to all centrally managed laptops and smartphones for WLAN access via WPA3 Enterprise. Yes, Flurfunk aims to be CRA compliant ahead of time.

Yes, all components are current off-the-shelf hardware and yes, installing OpenWrt on them is easy (no tools needed).

No, Flurfunk is not a production network nor does it come with support, it's a PoC.

Do you want to stand on the shoulders of giants as we do, and replicate the setup for your own network? Of course the configuration files for all components as well as links to the relevant firmware/OS images will be provided for download. Where applicable, existing tutorials/wikis have been improved.

Building Mzansi Xchange: Open Source Approaches to Secure Data Exchange in South Africa's Digital Public Infrastructure

South Africa’s digital future depends on robust, scalable, and inclusive Digital Public Infrastructure (DPI). My talk introduces the core components and foundational principles of DPI, highlighting the latest directions in the South African Digital Transformation Roadmap, as unveiled by The Presidency. We’ll discuss why governments globally—including South Africa—are embracing Open Source solutions to reduce vendor lock-in, foster innovation, and ensure transparency, while exploring local challenges around adoption, interoperability, security, and compliance with regulations like POPIA.

The heart of my session is a real-world use case: building Mzansi Xchange, a secure, national data exchange platform co-designed with government and built primarily on Open Source software. We’ll unpack the architectural choices, implementation milestones, and hands-on lessons the project team learned, from aligning with the National Data and Cloud Policy to establishing federated data governance and deploying secure Open Source software.

The openCode Badge Programme promotes quality, security, and reusability of open source software in public administration. Part of the openCode platform run by the German Centre for Digital Sovereignty (ZenDiS), it automatically evaluates repositories against defined criteria and awards badges in areas such as security and maintenance, which are visible in the openCode catalogue. The Badge Programme is an integral part of ZenDiS and the German Federal Office for Information Security’s (BSI) strategy to strengthen the security of software supply chains in public administration. By creating clear incentives to meet standards and supporting informed decisions when reusing software, the programme shows how open source development and use can be fostered in the public sector.

In 2024 France and Germany signed an agreement to cooperate on building an open source digital workspace. As part of this collaboration, DINUM (France), ZenDiS (Germany) and MinBZK collaborated on building a modern Open Source Document editing product (Docs) on top of modern

As part of this, they collaborated with the existing open source libraries: BlockNote and Yjs.

This talk will share our joint experience in financing core features such as exports, comments, edit attribution, and suggestions. We'll explain: - What the collaboration looked like in practice - How funding core libraries can help you build your own Sovereign solutions efficiently - Challenges and differences between funding libraries and Application-Level solutions - Broader ecosystem benefits

As European public sector organizations pursue digital sovereignty, the technical migration from proprietary to open source solutions is only half the battle. Technology is often the easy part. The real challenge lies in transforming not just infrastructure, but mindsets, workflows, and institutional culture. True independence requires successfully leading organizational change - preparing teams, managing resistance, and building confidence in open source alternatives.

This talk shares proven change management strategies from leading IT transformations and guiding public sector clients through transitions from Jira to OpenProject, demonstrating how to build sustainable and resilient digital ecosystems that serve citizens rather than vendors. You'll learn how to:

• Co-create change through proven leadership best practices
• Create ownership for the open source solutions within public sector
• Build the business case and frame the open source narrative that resonates with public sector stakeholders and decision-makers
• Drive the mindset shift to FOSS
• Identify your use cases and foster transition to open source products
• Build internal champions who drive adoption across departments

Drawing from real-world public sector experiences and Rosanna Sibora's experience in driving IT transformations, this session reveals the human factors that make or break digital sovereignty initiatives. Whether you're planning your first migration or looking to improve your change management approach, you'll leave with actionable frameworks for leading successful transitions to independent and interoperable digital workspaces.

Many public bodies, NGOs and small providers in Europe want to move away from US‑dominated cloud platforms, but struggle to build and run their own stack with small teams and limited capacity. At the same time, the threat landscape makes it urgent to build more resilient infrastructure for critical public services.

TAPPaaS is a trusted, automated and privacy‑friendly Platform as a Service, built only with Free and Open‑Source Software, that makes it easier for small teams to run sovereign workspaces and public digital services. In this talk, we present the TAPPaaS blueprint and show how we combine existing FOSS building blocks into a sovereign, standards‑based stack that can be operated by SMBs, NGOs and local governments with limited resources. We highlight how automation and common patterns reduce operational effort, improve security and resilience, and avoid lock‑in to proprietary hyperscalers.

TAPPaaS is work in progress, so we share what already works well in pilots and prototypes, where we still hit hard problems, and which trade‑offs we made along the way. Attendees will leave with a concrete blueprint for running a sovereign PaaS with a small team. TAPPaaS comes with pre selected modules and integrations that can reuse in their own public or civic infrastructure, and clear ways to get involved as consumer, operators or contributors in shaping TAPPaaS as a building block of Europe’s public digital infrastructure.

Attacks on the software supply chain are becoming increasingly common. Attackers are trying to access critical systems via the software supply chain. Such attacks can have serious consequences, particularly in the public sector. In our talk, we will demonstrate how DevGuard, as an open-source vulnerability management project, helps ZenDiS by finding and closing vulnerabilities before the release of the software and deliver a toolchain for the hardening of base images. DevGuard itself is an OWASP Incubator Project which is available via the openCode-DevGuard instance or as 100% open-source software on GitHub for community use.

The OpenFlexure Microscope is an open source, laboratory-grade robotic microscope, used by a diverse community including academic researchers, engineers, educators, pathologists and hobbyists (https://openflexure.org/, https://openflexure.discourse.group/). Users from over 60 countries have developed and used the device for everything ranging from exploring their garden's wildlife, to training medical students to diagnose cancer. Joe presents his experience as an academic member of the OpenFlexure development team for the last eight years. While his work focuses on the medical applications of the Microscope, research is planned and prioritised to benefit all members of the community. Development of the OpenFlexure software has enabled smart microscopy on the OpenFlexure Microscope, with automated sample identification, smart path planning and image processing, bringing novel research techniques such as digital pathology into new environments which traditionally lack the infrastructure to support them (https://gitlab.com/openflexure/openflexure-microscope-server, https://gitlab.com/openflexure/openflexure-microscope). The research builds on FOSS software and libraries, including Arduino and OpenCV, and extends open science by improving access to essential hardware. This is reflected in the range of OpenFlexure publications from outside the core development team, including peer reviewed articles in the fields of engineering, machine learning, medicine and social science.

At the current rate of digitization, it is estimated that it would take hundreds of years to fully digitize the natural science collections of Europe. In the face of the biodiversity crisis, we urgently need to scale up digitization to equip researchers with the tools to tackle this challenge.

The Distributed System of Scientific Collections, DiSSCo, is a fully open source European infrastructure that is bringing together over 300 institutions into a unified, digital natural science collection. DiSSCo harmonizes data into one data model and enables sharing human expertise and machine services across institutions.

Through annotating specimen records on the platform, experts from around the world can contribute to curation and enhancement of data. Most crucially, taxonomists, whose expertise is highly specialized and sought after, can easily share their knowledge and improve specimen data across institutions.

Leveraging a shared data model, machine agents can further improve and enhance specimen data, through linking to other infrastructures, georeferencing, and even label transcription. Instead of being confined to a single institution, services adapted for DiSSCo can be applied to any specimen in Europe, breaking institutional silos and furthering collaboration.

These efforts culminate in a digital extended specimen, which acts as a “digital twin” to the physical object, with links to publications, genetic sequences, and other related information.

This presentation gives an overview of the progress of the DiSSCo infrastructure, collaboration with researchers and collection managers, and the future of DiSSCo’s development.

https://disscover.dissco.eu/ https://github.com/diSSCo

The exponential growth of scientific literature—doubling roughly every nine years—has made it increasingly difficult for researchers and decision-makers to locate, assess, and synthesize the evidence needed for sound policy and practice. Systematic maps and systematic reviews offer robust, unbiased ways to answer “what works?” but today they depend on manual search and screening workflows that are slow, costly, and vulnerable to human error. The result is a bottleneck: high-quality, up-to-date evidence syntheses are often too labor-intensive to produce at the pace conservation challenges demand.

This talk and demo presents an open, community-driven approach to lowering that bottleneck using human-in-the-loop machine learning and transparent evidence-management tooling. In 2018, DataKind and the the Science for Nature and People Partnership, built two free and open-access, web-based workflows for computer-assisted paper screening and evidence management, integrated into a single collaborative application (colandrapp.com). The platform combines active-learning prioritization, reproducible labeling, and interactive visualization to help teams rapidly identify relevant studies from tens of thousands of documents, extract key metadata, and generate portable, shareable review outputs. All components are designed to support open research practices: auditable decision trails, exportable datasets, and interoperability with downstream synthesis and visualization tools. Now, in 2026, we are releasing a significant update to Colandr that ensures the tool continues to be functional and sustainable. Colandr is supported by a global community of researchers and volunteers (colandrcommunity.com) and this session will highlight the additional open source solutions that have been built on top of the Colandr stack in addition to the Colandr product updates.

We aim to engage the FOSDEM community around a concrete open research challenge: building trustworthy, extensible tools that keep evidence synthesis fast, reproducible, and accessible. Participants will leave with a clear view of the platform’s capabilities, the design decisions behind it, and a set of well-scoped technical and research directions where open-source contributors can meaningfully push the state of practice forward.

AI has become an integral part of modern research, offering tremendous opportunities, but also raising important questions for the Open Science community.

With the emergence of the Open Source AI Definition (OSAID) and its emphasis on the four freedoms, the “freedom to study” stands out as a cornerstone for achieving true reproducibility. You can read the OSAID definition here: https://opensource.org/ai/open-source-ai-definition.

This talk will explore how researchers can design, implement, and sustain reproducible AI practices within their work, especially in Low and Middle Income Countries (LMICs), where infrastructure and culture around reproducibility are still developing. Drawing from practical examples and community experiences, I’ll outline actionable steps for embedding openness and reproducibility in AI workflows. These approaches are adaptable across contexts and can help build a more transparent, collaborative, and trustworthy global AI ecosystem.

My perspective is shaped by my work as an Open Source Manager and Project Coordinator with Data Science Without Borders, and as a contributor to The Turing Way, where I advocate for open, inclusive, and reproducible research practices in data science and AI.

vLLM (https://github.com/vllm-project/vllm) has rapidly become a community-standard open-source engine for LLM inference, backed by a large and growing contributor base and widely adopted for production serving. This talk offers a practical blueprint for scaling inference in vLLM using two complementary techniques, quantization (https://github.com/vllm-project/llm-compressor) and speculative decoding (https://github.com/vllm-project/speculators). Drawing on extensive evaluations across language and vision-language models, we examine the real accuracy–performance trade-offs of each method and, crucially, how they interact in end-to-end deployments. We highlight configurations that substantially cut memory footprint while preserving model quality, and show when these speedups translate best to low-latency versus high-throughput serving. Attendees will leave with data-backed guidance, deployment-ready settings, and a clear roadmap for leveraging quantization and speculative decoding to accelerate vLLM inference in real-world pipelines.

Quantum computing creates new opportunities, but building and operating a quantum cloud service remains a complex challenge, often relying on proprietary, black-box solutions. To bridge this gap, we introduce OQTOPUS (Open Quantum Toolchain for OPerators and USers) [1], a comprehensive open-source software stack designed to build and manage full-scale quantum computing systems. OQTOPUS provides a complete cloud architecture for quantum computers, covering three critical layers: 1.Frontend Layer: Web-based interfaces and SDKs that allow users to easily design and submit quantum circuits. 2.Cloud Layer: A scalable management system for users, jobs, and devices, designed to be deployable on public clouds (see oqtopus-cloud [2]). 3.Backend Layer: The core execution engine that handles circuit transcoding, error mitigation, and low-level device control, utilizing modular tools such as OQTOPUS Engine [3] and Tranqu [4].

Developed in collaboration with The University of Osaka, Fujitsu Limited, Systems Engineering Consultants Co., LTD. (SEC), and TIS Inc. (TIS) is already powering operational superconducting quantum computers. This talk will detail the modular architecture of OQTOPUS, demonstrating how developers and researchers can use it to construct their own quantum cloud platforms, customize compilation strategies, and experiment with hybrid quantum-classical workflows. Join us to learn how OQTOPUS is democratizing access to the deepest layers of quantum infrastructure.

Project Links: [1] OQTOPUS Organization: https://github.com/oqtopus-team [2] Cloud Layer: https://github.com/oqtopus-team/oqtopus-cloud [3] OQTOPUS Engine: https://github.com/oqtopus-team/oqtopus-engine [4] Tranqu: https://github.com/oqtopus-team/tranqu

NoiseModelling is an open-source platform for simulating environmental noise propagation and generating regulatory-compliant noise maps at urban and regional scales. Leaded since 2008 by the Joint Research Unit in Environmental Acoustics at Gustave Eiffel University, it provides researchers and practitioners with reproducible, transparent, and scalable modelling capabilities for environmental acoustics. As the modelling core of the Noise-Planet framework, NoiseModelling simulates noise propagation from road traffic, railways, and industrial sources using the standardized CNOSSOS-EU method for emission and propagation. It operates as a Java library or through a user-friendly web interface, tightly integrated with spatial databases H2GIS or PostGIS to handle large-scale urban datasets efficiently. The broader Noise-Planet ecosystem complements NoiseModelling's simulation capabilities with participatory noise measurement through the NoiseCapture mobile application. After more than three years of operation, the platform has collected data from over 100,000 downloads and 74,000 contributors worldwide, enabling citizens and researchers to create high-resolution, crowdsourced noise maps that respect privacy while contributing to scientific research. This integrated approach bridges computational modeling with real-world measurements, promoting open science principles through open-source code, open data, and collaborative research.

https://noise-planet.org/

https://noisemodelling.readthedocs.io/en/latest/

The Open Research Devroom Organizers' Panel is a 15 min slot where the organizing team of the devroom will do: - A roundtable presentation of the organizing team - An informal invitation to the audience to join the organizing team of the devroom next year - Open questions and answers regarding organization of the devroom

Research reproducibility remains elusive despite the widespread adoption of FAIR data principles, as data and code lifecycles disconnect, computational environments vanish after publication, and, without explicit environment specifications, reproducing analyses demands expert knowledge even when code is shared. The open-source Reproducible Research Platform (RRP) bridges this by unifying research data management (via openBIS RDMS) with Git-managed code, Docker/repo2docker environments, and Kubernetes scaling into shareable, executable projects. Users mount datasets via traceable permanent IDs into JupyterLab, VS Code, RStudio, MATLAB, or full desktops, enabling instant execution anywhere, from local machines to institutional clusters, without setup hurdles. In this presentation, we demonstrate RRP across diverse research domains and open-source tools. In engineering, RRP facilitates integration of CAD and PCB design workflows into collaborative, shareable projects, enabling open-hardware development with open-source tools. Machine learning practitioners leverage RRP for reproducible training and inference on large microscopy datasets. Molecular biologists use RRP to perform reproducible DNA editing experiments with CRISPR tools linked to DNA materials stored in the RDMS. Software engineers and bioinformaticians benefit from RRP’s support for established IDEs like VS Code and RStudio, preserving user workflows while ensuring reproducibility. Finally, RRP streamlines collaborative manuscript writing by linking research data and analysis code directly to the publishing process, enhancing reproducible scholarship. We built RRP with a modular architecture and open-source ethos, inviting developers to extend its capabilities, integrate new tools, and customize workflows, fostering an evolving ecosystem for reproducible research across diverse scientific domains.

OpenParlData.ch provides free access to harmonized data from Swiss parliaments. We currently offer data on political actors, parliamentary proceedings, decrees, consultations, votes, and more from 78 parliaments. Researchers (e.g. political scientists, linguists) but also journalists and civil society organizations can use our API to create their own analyses, visualisations, and tools, thereby promoting transparency, participation, and innovation in Swiss politics.

We import data (mostly from websites and some APIs), clean, harmonize and publish them openly. The data infrastructure is open source and currently in beta. In addition to the API, we are developing standards that enable parliaments and governments to publish uniform open data. Over the next year, we will address the question of how we can efficiently and financially sustainably operate a data infrastructure that continues to provide crucial data openly in three years' time and how we can enable other actors to publish interoperable high-quality data. We look forward to sharing what we have learnt and hearing your feedback!

Presentation Slides

Xan is a command-line tool designed to manipulate CSV files directly from the comfort of the terminal.

Originally developed within a sociology research lab to perform common operations on very large datasets collected from the web (exploration, sorting, computing frequency tables, joins, aggregations, etc.), it has become a go-to solution for its users for many more use-cases, including lexicometry analysis, plotting histograms, time series or heatmaps, and even generating network graphs. And while the tool was initially created to deal with very large CSV files, it is now also used by people to process small files, and other file formats. The tool was thus included in the daily data manipulation practices of its users, who saw it as an opportunity to never leave their shells, without having to rely on GUIs or notebooks.

This presentation, given by a research engineer after two years of regular use, examines the reasons for this appropriation, which relates both to the constraints of research in the Humanities and Social Sciences and to the interface design choices that make xan effective.

Open research requires skills that Free/Libre and Open Source Software (FLOSS) developers have been cultivating for decades and that have made them successful in building their communities and business models. Discussing in public, creating inclusive communities, developing governance models suitable for community-driven projects, securing funding are all skills FLOSS developers require to sustain their software projects.

These skills are equally needed in open research, when it is not merely understood as open access, but it is conceived as an effort to create communities of practice that overcome geographical, disciplinary, and social boundaries. Developing these skills in open research, however, is still work in progress. For instance, peer review, which is a mainstay of research, usually continues to take place behind closed doors and involves a limited number of actors rather than the entire community with risks of fraud and knowledge gatekeeping. Similarly, open research networks struggle to be as inclusive as FLOSS projects. Participation is traditionally determined by institutional affiliations and funding, and citizen science contributions are often neglected because they do not fit into the scheme of traditional scholarly knowledge. Robust governance models and long-term funding strategies are also lacking in open research in many cases.

The talk is a personal reflection based on my experience working in research data management and engaging in my free time with open-source projects and volunteer-based initiatives to promote coding literacy. At times when AI-generated code is marketed as the only possible future of software, including research software, my reflection focuses instead on the human skills and shared values underpinning software development in FLOSS communities, why I consider them a precious asset, and why I hope they will continue to exist and fully transfer into open research.

In 2012, a small group looking at challenges related to the development and maintenance of research software realized that there was no community identity (e.g., common title, career path, professional association) for the people involved, so they started a process to define and create these. Today, 13+ years later, there are research software engineer (RSE) and engineering (RSEng) groups at more than 100 universities, and RSE societies and associations in more than 10 countries (e.g., UK, US, Germany, Belgium), with over 10000 members and annual physical and virtual conferences, including a first global research software conference coming in 2026. This talk will briefly discuss the movement that created this, then will focus on the experience of the University of Illinois Urbana-Champaign, where there is now a group of 45 RSEs in the National Center for Supercomputing Applications (NCSA), and many more across the university. RSEs at NCSA bring skills and expertise including full-stack development, UI/UX design, GIS, AI, MLOps, DevOps, and data science and engineering with projects such as Clowder, IN-CORE, Illinois Chat, DeCODER, etc., across multiple scholarly and industrial domains. Beyond technical advancement, the group has been developing and enhancing mentoring RSEs and RSE managers. The talk will discuss how this group was developed, the challenges it overcame, and the challenges that remain.

So, you want to create an open-source research software package — and not just for yourself or your group. You’d like people around the world to use it, and even contribute to it. How do you persuade them it’s worth their time?

Open-source projects rise and fall on trust. You may hope to build trust on technical merits: your algorithm is novel; your implementation fast; your tests thorough. All great, but not enough. Many technically excellent projects never break through because they neglect the social foundations of trust, which are laid long before a project matures.

And that's good news: you don’t need to be a top-tier programmer to build a successful open-source tool. Normal researchers do this all the time. What matters most is how you run the project, not how fancy the code is.

This talk distils lessons from years of building and maintaining scientific Python tools used by researchers worldwide. I’ll outline the practices that signal reliability and sustainability across a project’s lifecycle: defining and communicating your mission from the start; making a reasonable first release and following it up with consistency; and using open communication channels to embody your values and model healthy norms.

Throughout the talk, I’ll draw on examples from movement — a Python package I develop — and other tools built by the Research Software Engineering team I’m part of. That said, the lessons should be applicable to any free open-source project that aspires to attract and sustain a healthy community.

Takeaway: If you behave like a trustworthy project from the beginning, people will treat you like one, and help the project grow into what it promises to be.

Jupyter Book is a core tool for sharing computational science, powering more than 14,000 open, online textbooks, knowledge bases, lectures, courses and community sites. It allows researchers and educators to create books and knowledge bases that are reusable, reproducible, and interactive.

Over the past two years, we have rebuilt Jupyter Book from the ground up, focused on allowing authors to produce machine readable, semantically structured content that can be flexibly deployed, reused, and cross referenced in unprecedented ways. We achieved this by adopting, stewarding, and developing the MyST Markdown Document Engine (mystmd.org), a more flexible and extensible engine that integrates with Jupyter for interactive computation. Jupyter Book 2 represents a major leap forward in how we share and distribute computational content on the web.

In this talk, we cover the key ideas driving Jupyter Book 2 and MyST, and showcase real-world examples like The Turing Way, and Project Pythia. We'll demonstrate major new functionality with live demos, and give the audience practical tips for getting started with the new Jupyter Book 2 stack.

A presentation of a new tool that allows visualising groups of Wikipedia articles, analysing and monitoring them, supporting the work of volunteers, researchers, and institutions, and creating knowledge landscapes.

The prototype focuses on Wikipedia articles related to climate change and sustainability, aiming to assess current coverage of these topics and test interventions. However, the tool developed can be applied to any topic, starting from Wikidata and Wikipedia categories.

This free and open software tool is developed in the framework of the international research project “Visual Analytics for Sustainability and Climate Change: Assessing online open content and supporting community engagement. The case of Wikipedia" (2025-2029), led by the University of Applied Sciences and Arts of Southern Switzerland (SUPSI), in collaboration with Wiki Education Foundation, Wikimedistas de Uruguay, Wiki in Africa and Open Climate Campaign, with the endorsement of Wikimedia Italia, the support of the SNSF (10.003.183) and the engagement of many Wikipedia and Wikidata volunteers.

The presentation is an invitation to contribute to the design of the tool and its tests.

• Research project: https://meta.wikimedia.org/wiki/Visualizing_sustainability_and_climate_change_on_Wikipedia
• Co-design of the tool: https://meta.wikimedia.org/wiki/Visual_Analytics_for_Sustainability_and_Climate_Change/Tool/Co-design_activities
• Prototype https://giovannipro.github.io/wikipedia-climate-change/?lang=en
• The visualisations will be integrated into the dashboard Visualizing Impact by Wiki Education.

How to work with toxic data? In our project we work with DNS query streams, which contain a lot of data that may expose single users and their browsing behaviour.

This talk covers how we have built a large scale statistics platform while preserving the user’s privacy and still being able to find important observations. We cover which algorithms and methods we use to gather the data in a cloud platform and run advanced analytics without touching individual user data. We share how to go from big data sets to small aggregated and minimised sets.

We believe the approach of "small data" is applicable to any field where you want to use and share sensitive data. We also invite the audience to audit our work and help build a privacy-first internet statistics platform as one good example.

The “Gambit” project for computation in game theory has been through multiple phases of development, dating back to the 1980s. Game theory as a field & methodology emerged from economics, but increasingly has applications in cybersecurity, multi-agent systems research and AI. Gambit is used across these fields for both teaching purposes, and as a suite of software tools for scientific computing. Recent Gambit development has been carried out at The Alan Turing Institute and has involved a modernisation of the PyGambit Python API, with a particular focus on improving the user experience, including clear user tutorials and documentation. This in turn has helped to guide the prioritisation of features in recent package releases.

This talk will introduce some fundamental concepts in game theory using PyGambit, explaining how the package can be used to create and visualise non-cooperative games, and compute their Nash equilibria (where game players have no incentive to deviate their strategies). The talk will also highlight how PyGambit fits into the broader open-source scientific computing ecosystem for research on games via interoperability with the OpenSpiel framework, which is used for reinforcement learning.