Insights from the first Software Heritage “State of Public Code:” open methodology, domain registry, and digital collaboration frameworks.

Get to know OSS Malta and the vision of Warren Camilleri, our newest ambassador. Explore how his work shapes the organization’s goals.

The first State of Public Code report offers a global, evidence-based view of how governments use and contribute to open-source software.

Don’t let your code disappear. Secure your code with the Software Heritage “Save Code Now” feature. Ensure your projects are preserved.

Roberto Di Cosmo returned to the University of Pisa — where he studied in the 1980s — to make the case that Europe’s digital sovereignty debate is missing its most critical pillar: software. A talk on fragility, dependency, and why resilience is not the same thing as control.

Roberto Di Cosmo reframes data altruism to address the critical, missing pillar of digital sovereignty: the preservation of software code.

Schedule, talks and talk submissions for Wikimania 2026

A recap of Software Heritage at UN Open Source Week 2026 and the global launch of the Public Code Observatory.

Learn how the OIN Linux System Table, now in the Software Heritage Archive, protects open-source innovation and software preservation.

The first State of Public Code report offers a global, evidence-based view of how governments use and contribute to open-source software.

All B-type subdwarf stars (hereafter sdB) should have low flux of ionizing photons, making them incapable of producing a noticeable circumstellar photoionized shell. However, a few sdB stars have been associated with circumstellar nebulae, resembling in some cases a planetary nebula. These discoveries spark doubts about the nature of the physical processes behind the formation of the nebula. In this paper, we describe the newfound parabolic-shaped nebula associated with the high proper motion sdB star TYC 3315-1807-1. The apex of the Halpha nebula is situated approximately 0.5 arcmin in the direction of the stellar proper motion. A wider parabolic-shaped nebula is also detected in WISE W1 infrared images at 3.4 micron, whereas GALEX images show extended far-UV emission around the star within the optical and mid-IR emissions. Like most other sdB stars with associated nebulae, TYC 3315-1807-1 moves at a high-speed (102 km/s) across the Galactic plane. The low luminosity of TYC 3315-1807-1 cannot provide its wind with the momentum necessary to form and keep a bow shock. The nebula around TYC 3315-1807-1 is rather suggested to be a Mach wave partially excited by shocks and photoionization or the encounter of the star with an over-density clump in the ISM.

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Location: Sovereignty Arena - June 17 2:00 PM 2:55 PM - CET | Resume: At a time when key technologies are concentrated in the hands of a few global actors, sovereignty is most often thought of in terms of competition between powers. But what if it could be built differently? From digital commons - code, data, open infrastructures - emerges an approach of shared digital sovereignty, more collective, more interoperable, and more sustainable, as an alternative to the logic of rivalry.

Sans logiciel, pas de science moderne ! Mais jusqu'à récemment, le précieux code source des logiciels libres utilisés dans la science pouvait disparaitre sans qu'on y prenne garde : oublié sur un…

Esha Nasir on the shift from static research papers to living software infrastructure, and the role of Research Software Engineers.