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

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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