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.

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11:00 CEST

Operationalizing Openness: Standardizing AI Model Supply Chains With the Model Openness Framework - Vincent Caldeira, Red Hat

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

G106

As AI systems proliferate, ensuring transparency, trust, and traceability across the model supply chain has become a critical challenge. The Model Openness Framework (MOF), developed by LF AI & Data and Generative AI Commons, offers a standardized classification system to evaluate the completeness and openness of AI models across 17 key components—from architecture to evaluation code and documentation. This talk will explore how the MOF addresses model "openwashing" and supply chain risk by establishing clear standards for licensing and disclosure. We will demonstrate how enterprises can operationalize MOF compliance using open source tools like OCI-based model packaging, model signing, and automated documentation pipelines. Attendees will gain practical insights into aligning with emerging governance requirements and building trustworthy, reproducible AI systems through open collaboration.

Speakers

Vincent Caldeira

CTO APAC, Red Hat

Vincent Caldeira, CTO of Red Hat in APAC, is responsible for strategic partnerships and technology strategy. Named a top CTO in APAC in 2023, he has 20+ years in IT, excelling in technology transformation in finance. An authority in open source and cloud-native technologies, Vincent... Read More →

Tuesday August 26, 2025 11:00 - 11:40 CEST
G106

Standards & Specifications

Audience Experience Level Beginner

11:55 CEST

Unlocking the Network: How CAMARA Is Building the Future of Open Network APIs - Markus Kummerle, Deutsche Telekom

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

G106

CAMARA is redefining how developers interact with telco networks. Hosted by the LF in collaboration with GSMA and TM Forum, CAMARA is an OSS project creating standardized, operator-exposed APIs—giving developers secure, scalable access to capabilities like Quality-on-Demand, Location Verification, and Edge Discovery.

This session introduces how CAMARA bridges the gap between telcos and the developer ecosystem. Learn how you can use CAMARA APIs to power real-world use cases in gaming, XR, IoT, and more—without needing deep telco expertise.

We’ll showcase active APIs, demo contributions in action, and explain how you can get involved—whether by implementing APIs within operators, connecting exposure platforms, integrating their own portals, or adapting products to fit into this growing ecosystem. If you’re building applications that rely on connectivity, this is your invitation to help shape the next generation of open, programmable networks.

Explore how open source is unlocking network capabilities and how you can contribute to the next generation of telco innovation.

Speakers

Markus Kummerle

Program Manager Deutsche Telekom API Exposure, Deutsche Telekom

Markus Kümmerle is responsible for the 5G Network Exposure Program at Deutsche Telekom. Since 2014 Markus has been responsible for Quality for the System Integration / Digital Solutions unit of T-Systems. In parallel, he continues driving large projects and programs. In 2020 he took... Read More →

Tuesday August 26, 2025 11:55 - 12:35 CEST
G106

Standards & Specifications

Audience Experience Level Beginner

14:10 CEST

Your SBOM Is Lying To You – Let’s Make It Honest - Yuchen Zhang & Justin Cappos, New York University

Tuesday August 26, 2025 14:10 - 14:50 CEST

G106

SBOMs (Software Bills of Material) are essential for improving visibility and security in the software supply chain. As open-source code drives modern development, organizations face growing security risks due to limited transparency in software dependencies. Attacks like SolarWinds (2020) and Kaseya (2021) highlight the urgent need for stronger software supply chain security.

However, SBOMs are often inaccurate. This talk explores why these inaccuracies occur, how attackers exploit them, and how to address these issues. A key challenge is dependency management file analysis (e.g., cargo.toml for Rust), which struggles to track components effectively.

Enter SBOMit, an OpenSSF sandbox project leveraging in-toto attestations to create cryptographically verifiable SBOMs. By capturing supply chain steps as they occur, SBOMit enhances accuracy, mitigates tampering risks, and strengthens security. This talk examines SBOMit’s role in improving SBOM reliability across the CNCF ecosystem.

Speakers

Justin Cappos

Professor, New York University

I am a professor at NYU who has been working on software supply chain security for more than 20 years. I am a maintainer / creator of the TUF, Uptane, and in-toto projects, which are all under the LF.

Yuchen Zhang

Postdoctoral Associate, New York University

Yuchen is currently a postdoctoral researcher with the Secure Systems Laboratory (SSL) at the Tandon School of Engineering, New York University. He obtained his Ph.D. from the Department of Computer Science at Stevens Institute of Technology. Prior to Stevens, he completed his undergraduate... Read More →

Tuesday August 26, 2025 14:10 - 14:50 CEST
G106

Standards & Specifications

Audience Experience Level Any

15:05 CEST

Security, Privacy & Authenticity on the Web - Daniel Appelquist, Samsung Open Source Group

Tuesday August 26, 2025 15:05 - 15:45 CEST

G106

In an era of growing concerns over misinformation, surveillance, and data breaches, building a more secure, private, and authentic web has never been more critical.

In this talk, I'll explore the current state of web security, privacy, and authenticity, focusing on key efforts shaping the future of the open web. You'll hear about the latest work in W3C, including advancements in privacy principles, ethical web guidelines, web developer security guidelines, all aimed at creating a more secure, trustworthy, and user-centric web. You'll also learn about how emerging standards like Content Credentials (C2PA) may revolutionize the way we verify the authenticity of digital content, helping to combat misinformation and ensure transparency in the information we consume online.

Speakers

Daniel Appelquist

Open Source Strategist, Samsung

Dan Appelquist is Open Source Strategist at Samsung Open Source Group. He is a web & mobile industry veteran and long-time participant and leader in open source and open standards. He has been co-chair of the W3C Technical Architecture Group for the last twelve years and has recently... Read More →

Tuesday August 26, 2025 15:05 - 15:45 CEST
G106

Standards & Specifications

Audience Experience Level Intermediate

16:20 CEST

API Lifecycle: Smarter Design and Governance With Open Tooling - Dakshitha Ratnayake, WSO2

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

G106

As API ecosystems grow, keeping designs consistent and governance scalable can really be a challenge for both open platforms and internal teams. In this talk, we’ll dive into how AI-assisted tools, when combined with open standards and policy engines, can help simplify two of the toughest parts of the API lifecycle: design and compliance. We’ll show you how developers can use natural language prompts to generate and update OpenAPI specs, and how teams can use policy-as-code (with tools like OPA) to automate checks for things like naming, versioning, and security. You’ll walk away with practical workflows that help balance developer speed with organizational standards—all built with open source tools.

Speakers

Dakshitha Ratnayake

Director - Developer Relations, WSO2

Dakshitha is a Director of Developer Relations at WSO2, with over 15 years of experience in software development, solution architecture, and technical evangelism. Her work focuses on open-source technologies, particularly in integration, APIs, and identity and access management. She’s... Read More →

Tuesday August 26, 2025 16:20 - 17:00 CEST
G106

Standards & Specifications

Audience Experience Level Any