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Open Source at CERN in 2025/2026

23 October 2025
CERN
Europe/Zurich timezone
There is a live webcast for this event.

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Contribution List

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  1. 2. Welcome!
    Giacomo Tenaglia (CERN)
    23/10/2025, 14:00
  2. 3. The Open Source Journey
    Amanda Brock (OpenUK)
    23/10/2025, 14:10

    This talk will be a brief exploration of what open source is, why has it gained such phenomenal success in the last decade and what does this mean for open source? Why do both the private and public sector turn to it in our digitalised environments?

    In a world of AI, geopolitics and Sovereignty what are the challenges and where does open source fit?

    The audience will leave with a...

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  3. 5. Investing in the infrastructure of the 21st century
    Adriana Groh (Sovereign Tech Agency)
    23/10/2025, 14:40

    Every modern digital technology—from AI to quantum computing—is built on open source software. When you send an encrypted email, collaborate on a document, or run a Python script, you're using foundational open source components. While open technologies have become the backbone of our digital infrastructure, these essential building blocks do not receive adequate support, investment, or even...

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  4. 4. Empowering Public Sector Digital Sovereignty with Open Source
    Leonhard Kugler (ZenDiS)
    23/10/2025, 15:00

    ZenDiS - the German Centre for Digital Sovereignty - supports the public sector in building digital sovereignty through open-source solutions. This talk outlines how the openCode platform enables collaborative software development and sharing across public institutions, while openDesk provides an open, flexible workspace solution based on that shared code. Together, these initiatives...

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  5. 6. Building a sovereign system with Mistral AI
    Joffrey Thomas (Mistral AI)
    23/10/2025, 15:40

    This contribution presents the current Mistral ecosystem, the different offering of models, what's new, and then we will dive into the importance of Open-source and AI sovereignty, and general strategies to get more out of a specific GPU.

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  6. 11. OpenPHIGS: How an enthusiastic game developer accidentially helped to save LEP data
    Dr Ulrich Schwickerath (CERN)
    23/10/2025, 16:10

    Event displays are an excellent tool to visualise HEP events, for physicist but also for outreach. In the old days,these 3d visualisation tools were a challenge, and thus some experiments decided to use a commercial closed source back-end solution. This talk tells the story of how a little open source project of an enthusiastic game developer
    helped to resurrect these useful tools for two of...

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  7. 12. A lib to Integrate OpenAPI Generator into CERN React Apps
    Stefano Marzo (CERN)
    23/10/2025, 16:17

    At CERN’s Business Computing Group, we're developing a large-scale React UI for one of CERN’s biggest business applications.
    Integrating OpenAPI Generator into React brings clear benefits, but the process isn’t always straightforward.
    With no official guidelines or common patterns, developers often create their own strategies to integrate OpenApi Generator into React apps, which can lead to...

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  8. 13. PixESL v1.0: An Open-Source Virtual Prototype Framework for Detector Electronics
    Mahdi Zahedi
    23/10/2025, 16:24

    PixESL is an open-source virtual prototyping platform developed at CERN for the design and simulation of pixel detector electronics. Built in C++/SystemC, it enables realistic modeling of detector ASICs used in High Energy Physics experiments—from sensor signal generation to data readout. By allowing rapid and high-level exploration of detector architectures, PixESL accelerates development,...

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  9. 14. CERNBox, CERN’s cloud collaboration storage platform
    Rasmus Oscar Welander
    23/10/2025, 16:31

    CERNBox is an open-source cloud storage platform designed to serve the entire CERN community. Since its launch in 2014, the service has grown to manage more than four billion files and support over 8,000 daily users. Its open-source nature has enabled adoption by partner institutions such as the University of Paris-Saclay and the University of Vienna. Recent developments improved CERNBox’s...

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  10. 10. Adaptyst: modular architecture-agnostic performance analysis tool
    Maksymilian Graczyk (CERN)
    23/10/2025, 16:38

    Adaptyst is a novel open-source performance analysis project started at CERN as part of the SYCLOPS EU-funded project, currently in an early development phase with the ambitious roadmap for the next few years. The ultimate goal of the tool is using both static and dynamic methods to suggest the most optimal compute solution performance-wise (latency, throughput, energy efficiency, budget cost...

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  11. 8. OSPO 2025 and 2026
    Giacomo Tenaglia (CERN)
    23/10/2025, 16:45
  12. 9. Feedback & discussion
    23/10/2025, 17:05

    The OSPO needs your input: we do this for you, to help open-source projects. Please come with your ideas and concerns.
    After the event, you can share your feedback by sending an email to Open.Source@cern.ch or at the forum.

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