Open Source Summit Europe 2025: Full Schedule

25-27, August 2025
Amsterdam, Netherlands
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Note: The schedule is subject to change.

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This schedule is automatically displayed in Central European Summer Time, CEST (UTC +2). To see the schedule in your preferred timezone, please select from the drop-down menu to the right.

IMPORTANT NOTE: Timing of sessions and room locations are subject to change.

13:30 CEST

The Impact of Copyleft on the EU CRA - Jimmy Ahlberg, Ericsson

Monday August 25, 2025 13:30 - 14:10 CEST

G107

The introduction of the EU Cyber Resilience Act (CRA) marks a transformative milestone in software security regulation within the European Union, with far-reaching implications for global software practices. As the EU seeks to bolster cybersecurity standards across digital products and services, the CRA introduces new requirements aimed at identifying, managing, and mitigating vulnerabilities more effectively.

This session will explore the specific implications of the CRA for Free and Open Source Software (FOSS), with a particular focus on projects under Copyleft licenses such as the GNU General Public License (GPL). Copyleft licenses, which require derivative works to also be open source, present unique challenges in the context of the CRA's provisions.

Join us as we delve into the complexities and opportunities presented by the EU CRA, and explore its impact on the future of Free and Open Source Software.

Speakers

Jimmy Ahlberg

Director Open Source, Ericsson

Currently Mr Ahlberg is the Director of Open Source Policy with the Ericsson OSPO. Prior to the inception of the Ericsson OSPO he worked in different roles with various aspects of Open Source in the Ericsson organization, This included consumption of and contribution to Open Source... Read More →

Monday August 25, 2025 13:30 - 14:10 CEST
G107

Operations Management

Audience Experience Level Any

14:25 CEST

Open, Yet Secure: Rethinking Risk in the Age of Open Source - Avijit Biswas, IKEA IT AB

Monday August 25, 2025 14:25 - 15:05 CEST

G107

Open source is no longer just a developer’s playground—it’s the foundation of modern innovation. But as its influence grows, so do the challenges: security vulnerabilities, compliance concerns, and the risk of unchecked complexity.

At IKEA, we’ve reimagined open source not just as a collection of tools, but as a strategic engine for transformation. In this talk, I’ll share how we’ve integrated automation and AI across our Software Development Life Cycle (SDLC) to scale open-source adoption—safely, responsibly, and at speed.

This isn’t just about securing code. It’s about building trust. It’s about reducing friction. And ultimately, it’s about designing systems that are as resilient and collaborative as the communities that power them.

What you’ll learn:

• How to spot and address risks in open-source components

• Embedding automated security without slowing delivery

• Aligning compliance with innovation

• Real-world lessons from scaling secure OSS in enterprise environments

Join me to explore how smart automation can turn open source into a confident, competitive advantage.

Speakers

Avijit Biswas

Open Source SME, IKEA IT AB

I’m Avijit Biswas—known to most as Avi. I’m a passionate open-source professional and technology strategist with over 15 years of experience in digital transformation and secure software development. At IKEA, I co-lead initiatives like open-source strategy, secure software practices... Read More →

Monday August 25, 2025 14:25 - 15:05 CEST
G107

Operations Management

Audience Experience Level Intermediate

15:35 CEST

Centralized Approach To Implement OSS Compliance Program for Various Software Products - Venugopal Baswaraju, Sony India Software Centre & Anupama Sobhana, Sony India Software Centre

Monday August 25, 2025 15:35 - 16:15 CEST

G107

Sony Semiconductor Solutions(hereafter "SSS"), a subsidiary of Sony Group Corporation, is developing a device solution business centered on image sensors.

In this talk, we share our experience on how open-source-support team works with various product dev teams to ensure license compliance. SSS deals with many software products( from embedded firmware to cloud-based-solutions). To ensure license compliance, SSS created a dedicated open-source support team(part of OSPO) in Sony India Software Centre.

We showcase our streamlined license-clearance-workflow which has helped us to serve >250 license clearance requests for many product teams. You will get insights on how a centralized team of license experts augment product dev teams with licensing knowledge, suggestions for source code modifications, report generation, standards adoption SPDX SBOM. We also share the details about the tools we use for clearance. Towards the end of the talk, we share some benefits of a centralized team of experts (seamless sharing of licensing knowledge between experts, consistent quality of output,etc). As an effect, by unblocking License Compliance we have reduced the time to release for Product Teams.

Speakers

Venugopal Baswaraju

Program Manager, Sony India Software Centre, Sony India Software Centre

Venugopal Baswaraju is the Program Manager managing the OSS Compliance Program since its inception in 2022. In Sony Group, he has extensive experience in areas like product development, standards, certification and OSS compliance. He leads the strategy and execution of various technical... Read More →

Anupama Sobhana

Lead Software engineer, Sony India Software Centre

Anupama is an OSS License Compliance Lead and software engineer. She has extensive experience in Ubuntu/Debian based distribution management. She has extensive experience leading a team of License Clearance experts and cares deeply about the value of collaboration with open-source... Read More →

Monday August 25, 2025 15:35 - 16:15 CEST
G107

Operations Management

Audience Experience Level Beginner

16:30 CEST

Streamlining Open-Source License Compliance With the Continuous Clearing Tool - Amrit Kumar Verma & Dearsh Oberoi, Siemens

Monday August 25, 2025 16:30 - 17:10 CEST

G107

We present Continuous Clearing (CA) Tool, an open-source solution designed to automate & accelerate the license clearing of OSS components. This tool streamlines the identification & license compliance of 3rd party OSS components within various projects, including those using NPM, NuGet, Maven, Python, Alpine & Debian. It ensures that orgs. maintain a SBOM for all builds within the DevOps pipeline. It is designed with 3 different modules:

1. Package Identifier: This module accepts a package file or BOM as input & produces a SBOM file as output. It classifies each dependency type & incorporates into the output SBOM.

2. SW360 Package Creator: Utilizing the SBOM from the package identifier, this module identifies & creates any missing components or releases in SW360. Then associates components with the relevant project in SW360 & triggers the upload to FOSSology & automatically updates the clearing state in SW360. It also offers an option to exclude dev dependencies, if they are not relevant for compliance.

3. Artifactory Uploader: This final module takes the updated BOM & uploads components tagged as "Report approved" clearing state to the JFrog artifactory.

Speakers

Dearsh Oberoi

Research Engineer, Siemens

Open source contributor and Research Engineer at Siemens, passionate about fostering inclusive communities. Active contributor at SW60 and LicenseDB. Focused on license management and SBOMs.

Amrit Kumar Verma

Research Engineer, SIEMENS

Research Professional | Open-Source Contributor | Mentor

Monday August 25, 2025 16:30 - 17:10 CEST
G107

Operations Management

Audience Experience Level Any

11:00 CEST

Enabling Open Source From Within a Retail Company - J. Manrique Lopez, Inditex

Tuesday August 26, 2025 11:00 - 11:40 CEST

G107

Inditex's Open Source Program Office (OSPO) shares its experience in fostering and publishing open source projects from within a global fashion retailer. This session delves into our recently released projects, born from solving unique engineering challenges at the intersection of retail, logistics, and technology.

We'll provide a look at the hurdles encountered – adapting internal processes, navigating legal and compliance landscapes, and cultivating an open source mindset within an organization where software development has become increasingly more important to its operations. Learn about the key open source tools (e.g., for CI/CD, security scanning, license management) that were instrumental in streamlining our publication workflow.

Furthermore, we will discuss the ongoing challenges and future roadmap focused on enhancing the developer and contributor experience for our projects, aiming to build sustainable communities. This talk offers insights into the pragmatic steps taken and lessons learned while establishing OS practices in a "non-tech" company, encouraging attendees to explore both our journey and the resulting open source contributions.

Speakers

Jose Manrique Lopez de la Fuente

OSPO Manager, Inditex

Manrique is the manager of the INDITEX Tech OSPO and a passionate advocate for free, libre, and open source software development communities. He holds a degree in Industrial Engineering and has significant experience in R&D (IT Center of the Principality of Asturias, W3C, Ándago... Read More →

Tuesday August 26, 2025 11:00 - 11:40 CEST
G107

OSPOCon

Audience Experience Level Intermediate

11:55 CEST

OSS Management & OSPO Ask Anything - TODO Steering Committee - Ana Jiménez Santamaría, Linux Foundation, Developer Relations Foundation; Stephen Augustus, Bloomberg; Ashley Wolf, GitHub; Alice Sowerby, Rosmarin Ltd; Annania Melaku, NGINX part of F5

Tuesday August 26, 2025 11:55 - 12:35 CEST

G107

In this session, members of the TODO Steering Committee will assist the audience through the best practices, guides, and tools made by and for open source managers to help them in their day-to-day responsibilities, as well as share their first-hand experiences and lessons learned in building and operating OSPOs. The session will also open the conversation with the community about the evolving role of OSPOs in strategic organizational areas such as managing the AI tech stack, strengthening software supply chain security, and building long-term engagement with open source communities, foundations, and projects that are critical to achieving organizational goals.

Additionally, attendees will learn how to connect with the TODO Group – the largest global OSPO community – and explore mentorship opportunities in their local regions.

Speakers

Ana Jiménez Santamaría

Project Manager , Linux Foundation, Developer Relations Foundation

Ana is the Project Manager at the Linux foundation TODO Group collaborative project, whose aim is to create and share knowledge on open source management and operations best practices. Formerly she worked at Bitergia, a Software Development Analytics firm, and she has finished her... Read More →

Ashley Wolf

Director, Open Source Programs, GitHub

Ashley Wolf is the Director of Open Source Programs at GitHub. She runs initiatives and programs to empower developers to be successful with open source. She is also passionate about helping companies participate in the open source community. Prior to joining GitHub, Ashley led the... Read More →

Stephen Augustus

Technical Architect, Office of the CTO, Bloomberg

Technical Architect, Office of the CTO at Bloomberg

Alice Sowerby

Director, Rosmarin Ltd

Alice is an open source leader and program manager with 15+ years in B2B tech, spanning cloud native, AI/ML, and DevOps. She has built teams and developed leaders across startups, SMEs, and Fortune 500 companies, earning a reputation for visionary, collaborative leadership. Currently... Read More →

Annania Melaku

Technical Program Manager, NGINX part of F5

Annania Melaku is a Technical Program Manager on the Community Team at NGINX, where she focuses on open source strategy and community programs. With a background in software, she brings experience from industries including defense, telecom, and tech. Annania is passionate about building... Read More →

Tuesday August 26, 2025 11:55 - 12:35 CEST
G107

OSPOCon

Audience Experience Level Intermediate

14:10 CEST

OSPO Data Pyramid - Cali Dolfi, Red Hat

Tuesday August 26, 2025 14:10 - 14:30 CEST

G107

When Red Hat’s OSPO started to invest in data science efforts for insights into project health, many in the company were energized. In this talk, Red Hat OSPO’s lead data scientist Cali Dolfi will discuss the journey towards educating decision makers about how examining OSS community ecosystems could inspire new strategies and initiatives.

The table will be set with an introduction of Red Hat’s OSS DS ecosystem and explain how it builds on Red Hat’s legacy of, and lessons learned from their OSPO’s long history.

This talk will inform how structured data and data science methodology sufficiently supports the OSPO “food pyramid”:

Base level: open source communities- strategic involvement and proactive and informed initiatives around invested communities

Middle level: cross organizational collaboration - building trust and connections with data-backed claims

Top level: C-suite- Open source community and OSPO alignment with corporate strategy

The OPSO Data Pyramid will go from theory to application with a live demo of the 8Knot dashboard. Participates will leave with a better understanding of how to help their company better understand the OSS communities they engage and invest in.

Speakers

Cali Dolfi

Senior Data Scientist, Red Hat

Cali Dolfi is a Data Scientist in the Open Source

Tuesday August 26, 2025 14:10 - 14:30 CEST
G107

OSPOCon

Audience Experience Level Intermediate

14:30 CEST

From Qualitative Insights To Quantitative Analysis: Leveraging the OSCI for Strategic OSS Engagement - Kazumi Sato & Masayuki Kuwata, Sony Group Corporation

Tuesday August 26, 2025 14:30 - 14:50 CEST

G107

This session explores the quantitative aspects of open source engagement through the Open Source Contributor Index (OSCI). While qualitative PEST analysis highlighted the strategic importance of open source, in addition, we now focus on the data that reveals where companies are actively contributing. We analyze OSS development commit counts and contributor numbers within the Creation sector, uncovering trends in corporate participation in open source projects. By examining contributions to organizations such as ASWF and Khronos, we identify leading companies in specific projects and how these trends reflect broader industry movements. This presentation aims to provide actionable best practices for organizations seeking to enhance their open source strategies. Participants will learn how to effectively communicate these findings within their companies, ensuring that open source initiatives are recognized and actively supported. By bridging qualitative and quantitative analyses, we empower organizations to develop robust open source strategies that align with current trends and drive innovation.

Speakers

Kazumi SATO

Chief Software Engineer, Chief Open Source Strategist, Distinguished Engineer, Sony Group Corporation

Kazumi SATO is a Distinguished Engineer in Sony.

Masayuki Kuwata

Senior Manager, Sony Group Corporation

Masayuki Kuwata is the OSPO leader of Sony Group Corporation since April 2022.

Tuesday August 26, 2025 14:30 - 14:50 CEST
G107

OSPOCon

Audience Experience Level Beginner

15:05 CEST

Health Check-ups on OSS Software Projects: Managing Risks While Promoting (Re)use - Johan Linåker, RISE Research Institutes of Sweden

Tuesday August 26, 2025 15:05 - 15:25 CEST

G107

Open Source Software (OSS) intake is ever growing. An international Telco recently reported a surge from 30 to over 60,000 unique OSS components annually. However, this rapid adoption also introduces risks. The quality and security of OSS depend heavily on the maintenance efforts and health of its community.

In this talk, we show how organizations can systematically monitor the health of their OSS dependencies. This involves assessing the long-term viability and quality of OSS projects, akin to a medical check-up. Our study, detailed in the OSS Metrics chapter of the TODO group's OSPO book, identified 21 key health aspects through literature review and expert interviews. These aspects help organizations evaluate OSS projects based on factors like community productivity, stability, and governance.

Implementing health assessments requires a tailored approach, as demonstrated in our case study with a major automotive manufacturer. We present a semi-automated process for intake-stage inspections and automated monitoring for deployed components. Continuous training and feedback sessions are essential for integrating health assessments into standard practices.

Speakers

Johan Linåker

Senior Researcher, RISE Research Institutes of Sweden

... Read More →

Tuesday August 26, 2025 15:05 - 15:25 CEST
G107

OSPOCon

Audience Experience Level Any

16:20 CEST

Power Dynamics, Rug Pulls, and Other Corporate Impacts on OSS Sustainability - Dawn Foster, CHAOSS

Tuesday August 26, 2025 16:20 - 17:00 CEST

G107

Power imbalances are everywhere, including in our OSS projects, and in today’s cloud native world, the power dynamics have gotten even more complex. We’ve recently seen an increase in relicensing of open source projects and other tensions within communities that are directly related to imbalances in power that cause disruption within our open source projects. The many users, contributors, and even maintainers who have less power can feel like the rug has been pulled out from under them. We have mechanisms, like forks, where those with less power can counter these moves, regardless of the forms they take.

This talk will not only help people understand the power dynamics at play, but it will also provide tangible steps that we can take as maintainers, contributors, and users to make better decisions about focusing our precious time on making our projects more sustainable. There is no way to accurately predict which projects will not be sustained, but this talk will contain suggestions for how to look for warning signs. By attending this talk, you will learn more about the power dynamics and steps that you can take to make better decisions about which OSS projects to embrace.

Speakers

Dawn Foster

Director of Data Science, CHAOSS

Dr. Dawn Foster works as the Director of Data Science for CHAOSS where she is also a board member / maintainer. She is co-chair of CNCF TAG Contributor Strategy and an OpenUK board member. She has 20+ years of experience at companies like VMware and Intel with expertise in community... Read More →

Tuesday August 26, 2025 16:20 - 17:00 CEST
G107

OSPOCon

Audience Experience Level Any

11:00 CEST

Trainings on Open Source: How To Build a Comprehensive Training Program About Open Source? - Gergely Csatari, Nokia

Wednesday August 27, 2025 11:00 - 11:40 CEST

G107

Creating trainings on open source is a critical task of an OSPO. Open source is simultaneously a niche and an extensive topic with several aspects worth discussing. A training program should focus on the correct topics and should even provide different content for the different actors. In this session, Elefteria and Gergely from the Nokia OSPO will explain how the Nokia OSPO plans to renew the Nokia training program, what kind of user groups the different trainings address and how the trainings are organized. Lastly, this session is a great opportunity for the community to share their experiences when it comes to the creation of effective and really educational training programs inside their organisations and share tips, thus strengthening the collaboration between different stakeholders.Creating trainings on open source is a critical task of an OSPO. Open source is simultaneously a niche and an extensive topic with several aspects worth discussing. A training program should focus on the correct topics and should even provide different content for the different actors. In this session, Elefteria and Gergely from the Nokia OSPO will explain how the Nokia OSPO plans to renew the Nokia training program, what kind of user groups the different trainings address and how the trainings are organized. Lastly, this session is a great opportunity for the community to share their experiences when it comes to the creation of effective and really educational training programs inside their organisations and share tips, thus strengthening the collaboration between different stakeholders.

Speakers

Gergely Csatari

Senior Open Source Specialist, Nokia

Working in the telecom industry in the last two decades it was possible for Gergely to see the evolution from vendor specific hardware to virtualisation and cloud and a to cloud native. Currently Gergely is part of the OSPO team of Nokia CTO which is reponsible for open source. In... Read More →

Wednesday August 27, 2025 11:00 - 11:40 CEST
G107

OSPOCon

Audience Experience Level Beginner

11:55 CEST

OpenDevRel: Tales of Developer Relations in Open Source - Dotan Horovits, OpenSearch

Wednesday August 27, 2025 11:55 - 12:35 CEST

G107

We all know DevRel (Developer Relations): our company brings a novel approach to the industry, a new and better way of doing things, and we need someone to evangelize this concept, this approach, and then our product. But what if your company has an open source play? Clearly DevRel has a major stake in that, but how exactly does it work?

In this talk, Horovits will share his DevRel experience around OpenTelemetry, Jaeger, OpenSearch and other prominent projects. Bringing his rich experience from the vendor side, the dev community leader side, and the open source foundation side as a CNCF Ambassador (the Cloud Native Computing Foundation), Horovits will offer some best practices and guidelines running an effective DevRel program for open source.

Whether you found your own open source project, or whether there’s an established OSS project your company wishes to get involved in, this talk will give you fruit for thought.

Speakers

Dotan Horovits

Sr. Developer Advocate, OpenSearch

Horovits is an international speaker and thought leader, as well as a CNCF Ambassador, and host of the popular OpenObservability Talks podcast.

Wednesday August 27, 2025 11:55 - 12:35 CEST
G107

OSPOCon

Audience Experience Level Beginner

14:10 CEST

Open Source Unlocked: Smart Strategies for Maximising Efficiency & Impact - Avijit Biswas & Supriya Chitale, IKEA

Wednesday August 27, 2025 14:10 - 14:50 CEST

G107

In today’s fast-moving digital world, the pressure to innovate quickly and cost-effectively has never been greater. Open source holds incredible promise—not just as a technical solution, but as a strategic enabler of scalable, sustainable growth. Yet many organizations are still figuring out how to turn that promise into measurable impact.

At IKEA, we’ve reimagined how open source fits into our technology strategy. This talk will walk you through how we’ve reduced vendor lock-in, lowered costs, and improved flexibility by making smart, intentional choices about when and how to use open-source alternatives. It’s not just about cutting costs—it’s about creating value, building resilience, and staying in control of our digital future.

We’ll share real examples from our IT and AI journey, showing how open source can support both innovation and long-term sustainability—without compromising on quality or governance.

Key takeaways:

• How to align open-source adoption with strategic IT and AI goals

• Ways to drive cost-conscious product development at scale

• Lessons from reducing dependency on proprietary vendors

• Building resilient systems through proactive risk management

Speakers

Avijit Biswas

Open Source SME, IKEA IT AB

Supriya Chitale

Open Source Program Office Manager, IKEA

Supriya Chitale is currently working at IKEA as Open Source Program Office Manager. She has 20 years experience in software industry with specialization in topics related to Open Source and InnerSource. She is a parent to a teenager and in her free time, she loves to travel and learn... Read More →

Wednesday August 27, 2025 14:10 - 14:50 CEST
G107

OSPOCon

Audience Experience Level Intermediate

15:05 CEST

Why and How We Updated Our License Policy for Use of Open Source - Nico Rikken, Alliander & Jonas van den Bogaard, Alliander N.V.

Wednesday August 27, 2025 15:05 - 15:35 CEST

G107

As open source becomes increasingly important, more organizations are recognizing its value. However, organizations like Alliander, a Dutch Grid Operator, which are not primarily software companies, face unique challenges in its adoption.

One of the first policies we created as an OSPO was the license policy for the use of open source. It quickly became the most viewed page of our OSPO guidance. As our understanding of open source in the enterprise grew, we encountered more licenses and edge cases that needed to be addressed. Consequently, our policy expanded to the point where it became unwieldy for our colleagues to use. We took the time to restructure our license policy to accommodate more situations while making it easier to understand for those new to open source licensing.

In this presentation, we will discuss how the Alliander OSPO developed a licensing policy that evolved in complexity over time. We will cover the issues we needed to address, the process of updating our policy, and the details of the updated policy itself. Our story underscores the value an OSPO can gain from close collaboration with senior developers, software asset management, and the legal department.

Speakers

Nico Rikken

Open Source Advocate, Alliander

Nico Rikken has a track record in maximizing the potential of Free and Open Source Software in the energy sector and in the Netherlands. As Open Source Ambassador at grid operator Alliander he helps make open source project participation successful and ensure control over the company... Read More →

Jonas van den Bogaard

Digital Strategy Lead & Open Source Office Lead, Alliander N.V.

Jonas van den Bogaard is a Digital Strategy Lead at Alliander, a distribution system operator (DSO) in the Netherlands. Alliander provides reliable, affordable, and accessible energy transport and distribution to a large part of the Netherlands. Open source has proved to be an enabler... Read More →

Wednesday August 27, 2025 15:05 - 15:35 CEST
G107

OSPOCon

Audience Experience Level Any

16:20 CEST

Team Topologies and the Value Paths for OSPOs & ISPOs - Clare Dillon, CURIOSS

Wednesday August 27, 2025 16:20 - 17:00 CEST

G107

In 2019 Matthew Skelton and Manuel Pais’s published Team Topologies, which became a widely influential book in the software and DevOps communities, praised for its practical framework on organizing teams for fast flow and effectiveness. The book defines four fundamental team types (including enabling and platform teams). Team Topologies' popularity drove investment in enabling and platform teams, as organizations attempted to reduce cognitive load and support stream-aligned teams through better internal tooling and collaboration structures. Open Source Program Offices (OSPOs) and InnerSource Program Offices (ISPOs) are organizational units that enable open collaboration practices. In this talk, Clare will use the Team Topologies framework as a lens to understand how these program offices fit into an organization’s structure. This talk will explore how Team Topologies can provide a foundation for crafting a clear and compelling value proposition for OSPOs and ISPOs. It helps translate the often intangible or misunderstood work of these program offices into well-defined roles, interactions, and outcomes that resonate with business, engineering, and leadership audiences.

Speakers

Clare Dillon

CURIOSS Community Lead, CURIOSS

Clare Dillon is community lead for CURIOSS, a community for university & research institution OSPOs. Clare is also a researcher with Lero, the Science Foundation Ireland Research Centre for Software and a member of Lero's OSPO team. From 2021-2023, Clare served as the inaugural ED... Read More →

Wednesday August 27, 2025 16:20 - 17:00 CEST
G107

OSPOCon

Audience Experience Level Any