Discover how the OpenRail Association is pioneering open-source solutions for the railway sector, tackling legal, cultural, and organizational challenges while driving innovation in areas such as infrastructure simulation, timetable creation, and digital train technologies.

Open Source is great, but very few companies can afford to release all their source code to the world. Yet, it is still possible to benefit from open source best-practices and culture for in-house software projects and more. This exactly what InnerSource is. In session we will share about how we are driving InnerSource at SAP.

Good documentation is essential for open source, yet often overlooked. In this workshop, you will learn simple, hands-on techniques to create documentation that is clear, engaging, and user-focused. Walk away with a draft piece and a personalized toolkit for improving your docs and boosting your project’s accessibility.

A few months ago, France and Germany decided to pool their resources to jointly develop sovereign digital applications for their respective administrative workplaces, based on common open source modules. Here's a look back and forward at this dynamic project, which is set to expand across Europe in the coming months.

Join us to explore how the GovStack community is empowering countries to create affordable, customized digital public services—so citizens can easily access things like health records or digital payments. We’ll spotlight the Cloud Infrastructure Working Group and share examples from countries like Djibouti on their digital journeys.

With a month's notice to transition to a new workflow for managing incoming security reports for our open source project, join us to learn how we implemented GitHub's built-in security reporting feature in the Mautic project, and explore the highs and lows of collaborating with researchers, contributors and our security team using this system.

The report's authors will present their analysis of open source policy developments across the EU. The study examines how open source technologies are being integrated into public sector operations, focusing on digital sovereignty, data privacy, and infrastructure control.

How can civic tech adapt in times of crisis? At Commit Global, our UX approach creates human-centric, accessible tools that empower diverse users, from refugees seeking legal help to responders in high-stress situations. Join us to explore how inclusive, adaptable UX design can make civic tech a stabilizing force.

EMBAG is a swiss federal law that has been in force since 1 January 2014 and in Article 9 obliges the federal administration to publish source code that it creates itself or has created.

Lightning Talk

ZenDiS, Germany's Center for Digital Sovereignty, aims to strengthen public IT against rising geopolitical threats by promoting Open Source alternatives and reducing tech dependencies. In her keynote, Jutta Horstmann will present ZenDiS's platform, products, and cross-European collaboration efforts.

Participation and transparency in administration is more important than ever. "unser.muenchen.de" enables citizens to actively participate in decision-making processes. We will talk about how the platform works, the roles of our FOSS service provider, the specialist department, Consul Democracy Foundation and the Munich OSPO.

This talk gives an introduction into the efforts in building open digital infrastructures for public health in Germany within the project GA-Lotse since 2021. We will talk about the challenges in procurement, development, maintenance and scaling open digital infrastructures into the highly distributed world of health departments in Germany.

Division and discord seem to be spreading at an unprecedented rate. What can we do to ensure that the open source community remains focused on championing FOSS while also promoting and protecting the diverse voices and perspectives that are necessary for collaboration, retention, and resilience in open source?

What should you prioritize? Why are you building this open source project in the first place? A solid product strategy will help you make better use of your limited resources and increase the chances that the project will be a success. Emily Omier will teach you how to apply product strategy to open source projects and companies built around OSS.

Go behind the scenes of creating and building OpenSearch—a bold fork of Elasticsearch and Kibana that defied taboos, sparked public drama, and redefined open source governance. This talk dives into the challenges, lessons, and breakthroughs that shaped the project and a journey to balance community, corporate influence, and innovation.

Uniting efforts of Apache Airflow, ASF, PSF, Alpha-Omega fund in experimental project aimed at review and help with security of the whole 700+ dependencies of Apache Airflow.

Open Web Docs has raised more than $3m from diverse funding sources for open source web platform documentation. Funds support a small global team, contractors and minor expenses. This talk is a case study on the economics of OWD: how we “sell” open documentation (which isn’t on software dependency lists) and diversify fundraising strategies.

OSS projects are used to not having a designer. What would you ask one if you had them available? To look at your Command Line Interface? This is why it is exactly what you should do. (Also for designers: this is why designing CLIs making an impact - and fun!)

I'm one of the core team members of evcc, an open-source EV charging system that runs on and works with the hardware you already own. Over the last 5 years, we've managed to grow evcc into a sustainable and community-funded project using GitHub Sponsors.

It is a common misconception that the availability of Free and Libre Open Source Software (FLOSS) makes it the preferred choice for impoverished communities. However, this is often not the case. What are the underlying reasons for this gap and how can we enhance FLOSS adoption in remote and underserved areas of the world like Africa?

Seeing governments being more and more keen to use open source software is great, but a big challenge is to also fix how they procure it. This talk will discuss the current situation, why it isn't sustainable and how public and private organisations should change the way they buy open source software.

This talk connects the everyday open source work we do with the big changes we (can) make. It gives you zeal and perspectives for explaining what you do. If there’s a type of talk every open source event should have, this is the one — because explaining open source can be hard.

The Cyber Resilience Act establishes new stakeholder roles and responsibilities, based on which the Linux Foundation is reshaping the relationship between its upstream projects and downstream manufacturers. In this presentation, we provide an overview of our CRA compliance efforts and how upstream and downstream can work together in the future.

Siemens' Social Coding platform, launched in 2015, has grown to over 50,000 active users and 200,000 projects, driving measurable improvements in development efficiency and software quality. In this talk, we'll share Siemens' journey in nurturing a Social Coding culture - the key challenges faced and lessons learned.

Open source thrives on developer contributions, but integrating designers can be challenging. This talk uses CHAOSS as a case study, exploring onboarding best practices & challenges. I'll be sharing actionable strategies for bridging design & development in open source, empowering designers to contribute meaningfully & enhance UX.

This talk explains the importance of an Open Source Program Office (OSPO) for companies wanting to make the most of open source software. We’ll cover what an OSPO does, how it helps manage challenges like legal issues and team alignment, and how it drives innovation and collaboration across the company.

Through the establishment of Open Source Programme Offices (OSPOs) and other collaboration mechanisms around the world, new opportunities abound for the UN to support the open source community in supercharging innovations and enabling governments to achieve the 2030 agenda for the Sustainable Development Goals (SDGs).

When software dies or your company gets acquired, giving up isn’t an option – at least not for Open Source enthusiasts. This talk tells the story of an Open Source team that took its future into its own hands. It highlights where theory collides with practice and why developers sometimes need to seize the reins themselves.

In open source, diversity is often championed as a priority. But behind the scenes, are we doing more for appearances than real impact? In this talk, Ijeoma and Maryblessing will highlight the uncomfortable truth: diversity initiatives can sometimes become a façade, missing the mark on meaningful inclusivity.

In this session, Ana Jiménez and Daniel Izquierdo will showcase best practices and a real-case analytical framework that shows the strategic value of open source management talent in risk management throughout the software supply chain.

How are new software and AI-product liability laws affecting the way open source projects operate? Gain actionable insights on liability risks and certification requirements, work collaboratively on solutions, and explore ways to intervene in the fast-evolving global regulatory landscape in the EU, US, and elsewhere.

How can we measure open source’s impact on sustainable development? Join experts from CHOSS SDG WG as they explore innovative metrics to assess social and environmental contributions, beyond just economic value. Discussions will cover challenges, best practices, and strategies to empower open source communities in advancing global goals.

Discover why we're busier than ever despite technological advancements and how Open Source projects can boost productivity and well-being. Learn to avoid "pseudo-productivity" and the "efficiency trap" by focusing on quality over quantity. Join us for practical insights and strategies to create a more fulfilling Open Source culture.

Learn how to use the digital commons responsibly and avoid contributing to its depletion! This session will provide practical guidance on how developers can utilize open projects without causing harm. Discover strategies for collaborative use, responsible contribution, and ensuring the longevity of these valuable resources.

Open Science materials, created by open source often centre on English, sidelining 75% of the world who don't speak it. In this session, we share the creation of "Open Science MOOCs" for Arabic speakers blending videos, quizzes and RTL-friendly design. Learn how we navigated multilingual UX challenges to build truly inclusive Open Science resources

Outreachy has been promoting and supporting diversity, equity, and inclusion in free and open source software for 15+ years — in 2023, we surpassed the mark of 1,000 successful internships! In this talk, we'll open source our internship formula to empower the next generations of free and open source leaders, activists, and contributors.

We introduce a publicly-available capability model to assess management of FOSS compliance risk. Developed in conjunction with both the OpenChain project and active FOSS-using businesses, this model, based on ISO 5230:2020, provides an intuitive and practical framework for assessing FOSS risk, and developing a roadmap to improve it.

Why don’t more designers contribute to open source? We'll share insights from our research, presenting key obstacles like intimidating contribution platforms and unclear documentation, along with actionable solutions to improve collaboration between designers and developers.

Being proactive about improving sustainability before it becomes a crisis can help make our software better for all of us. However, not everyone has the experience or skills required to make improvements that will benefit their community over the long-term. This talk focuses on tools and techniques to build healthy and sustainable OSS projects.

What about the licensing of AI and AI generated artifacts? Can AI be Open Source? FOSS licensing is not all about code, it is also about AI models, icons, fonts, documents, music, etc. This talk will lead you from FOSS to AI, considering potential licenses for (AI generated) non-code and the question whether code-licenses are suitable for non-code.

Introducing the Open Design Guide (https://opendesign.guide), where designers learn how to find their way into open-source.

Think your project's technical direction just depends on code? Think again! How you structure your community shapes what you build - from KISS to corporate, from elite hackers to broad participation. See real-world patterns (linux distributions) of how governance creates technical culture, and learn to align your community with your goals.

As we increase analysis of our software supply chains, tools and scorecards reveal potential risks in Open Source projects like low maintenance, lack of community, or poor security practices. How should we handle this? Manual reviews? Questionnaires? Funding? Let's explore options to address these challenges strategically without ignorance or fear.

Our docs are living systems, but too often we've imagined them merely as flattened walls of text, and not much more. So, let's take a more holistic perspective of how folks interact with software documentation. Many of them wish to engage more actively, not just as passive consumers. How do we enable them?

An overview of the City of Paris' journey in Open Source, from its signature city digital services platform Lutece created in 2001 to its new software suite CiteLibre through the creation of its open source program office in 2022 and its open source policy started 23 years ago

More money for FOSS - a never ending issue. In a tech world built on start-ups, venture capital and data-gathering apps, the fight for sustainable funding for ethical technology projects is a fierce one. After some big victories for FOSS funding in the last years, this talk is about why we shouldn't forget the small, underdog civil society projects

Lightning Talk

Software, like all technologies, is shaped by economic principles. This keynote explores these forces' impact on FOSS and proprietary models. By examining past trends and current developments, it offers insights into FOSS's future amid global changes, concluding with five predictions for the Open-Source ecosystem.

Temurin is nearing 500M downloads, with growing enterprise adoption. Yet, many users aren’t supporting the project. This talk explores how Eclipse Foundation’s membership and revenue models generate sustainable funding while maintaining vendor neutrality. We'll also discuss understanding user needs and the real costs behind "free" software.

Introducing a practical toolkit for measuring the impacts of public funding for FOSS development, based on firsthand insights from EU and German funding initiatives and methodologies developed by the CHAOSS project. Learn how to assess social, economic, and technological outcomes for evidence-based FOSS funding strategies in the public interest.

This talk will discuss how common open source problems such as maintainer burnout, new contributor onboarding, under-funding of open source projects, bad user experience in open source, and communities falling apart due conflict can be viewed through a relational lens.

When choosing a governance model for your open-source project, “foundation-backed” is a proven approach. We chose this path - and built a brand-new association from scratch. Learn why and how we created an independent home and what impact the transition from company-led to foundation-backed had on our open-source project Yaook and its community.

Lightning Talk