Chaos Computer Club - recent events feed (low quality)

Over the past year at Shopify we've undergone a lot of changes internally. We moved from cloud development to local development, multirepo to monorepo, and Homebrew / Apt to Nix. Today, the majority of development is being done inside Nix-based environments. Some may recall that Shopify was using Nix back in 2019, so what happened? This talk will cover: * Why that effort stalled * How devenv reign...

Behind the Scenes of cache.nixos.org: Scaling Nix’s Binary Cache to Infinity The Nix binary cache is the silent powerhouse of the Nix ecosystem: every day, it fields thousands of requests per second—amounting to nearly 6 billion requests per month!—for NixOS and Nix users worldwide. But what makes it work at scale, how—or why—is its simplicity a virtue, and how does an ongoing partnership between...

The Cyber Resilience Act (CRA) is the EU's most important regulation for software in the last decade. While it makes an exception for open-source software and impact NixOS directly, any commercial product that includes NixOS has to comply with the CRA to allow offering in the EU. In this talk, we give insights into the CRA’s requirements, showcase that Nix tooling with its focus on reproducibility...

Nix and Flatpak are often seen as solving similar problems from different angles: one declarative and reproducible, the other sandboxed and user-friendly. But what happens when you try to make them work together? And why would you want to do it? In this talk, I’ll present nix-flatpak (https://github.com/gmodena/nix-flatpak), an open-source project to declaratively manage Flatpak apps with Nix. Thi...

Imagine a Sim-City-style interface for managing your infrastructure: drag a machine onto the field, connect it to a service, and you're done. Behind the scenes, the clan.lol project turns that visual layout into the correct Nix modules - automatically configuring machines, managing secrets, and setting up a mesh VPN. In this presentation we detail: - Visualize and Configure Networks in 3D - A "Sim...

This talk explores the challenges and opportunities faced by the free software movement today. It offers a broad reflection on what "freedom" means in modern computing — and why it's more relevant than ever. Touching on questions of trust, corporate co-option, licenses, and the ethics of technology, it emphasizes the role of community engagement and governance structures. With urgency and clarity,...

NixOps4 is the successor of NixOps. Why did NixOps fail, and how does NixOps4 address its shortcomings? Will NixOps4 replace Terraform/OpenTofu? Will the demo work? https://github.com/roberth/nixcon-2025-slides about this event: https://talks.nixcon.org/nixcon-2025/talk/YCDXZM/

Ever wondered how “nix develop” works? What kind of arcane horrors make our reproducible developer environments work? In this talk we’ll begin by explaining how “nix develop” works, then we’ll use that understanding to explore what it looks like to create an improved devshell experience, including improved startup times, extension to shells other than Bash, and adding packages without needing to e...

Presenting https://nixos-mediation.org/ what it is, how you can benefit from it, and a small retro. about this event: https://talks.nixcon.org/nixcon-2025/talk/CDU788/

The Hydra Queue Runner is a critical component responsible for orchestrating and executing build tasks within the Hydra infrastructure. Its reliability and efficiency are paramount for our Nix community, serving as a key component of the Nixpkgs infrastructure that builds the world's largest package set. A significant challenge with the current implementation lies in the communication between the...

Lets explore how to ensure the sustainability of the Nix ecosystem with community leads including the SC and Foundation. We will dive into what it takes to create and maintain a robust, reliable environment for years to come. Covering the community’s milestones in 2024, from infra to governance, and about both the hard-won lessons and the innovations shaping Nix’s future. about this event: https:/...

We're going to dive into examples behind how GitHub Actions can be designed using Nix, while having little to no difference between local development environment and CI running somewhere else. about this event: https://talks.nixcon.org/nixcon-2025/talk/S8SKEG/

Opening of the conference about this event: https://talks.nixcon.org/nixcon-2025/talk/QEN3WD/

Seit knapp 30 Jahren informiert das Chaosradio. Über (digitale) Technologie, wie sie aus Sicht des (Berliner) CCC die Gesellschaft und die politische Landschaft beeinflusst, und umgekehrt. Seit dem hat sich das Format immer wieder der Zeit angepasst: War es anfangs eine der einzigen Live-Sendungen im öffentlich-rechtlichen Radio mit digitalem Tiefgang die Dinge wie das “Internet für Fortgeschritte...

Licensed to the public under http://creativecommons.org/licenses/by/4.0 about this event: https://programm.froscon.org/2025/events/3460.html

Präsentation der Projekte anlässich des «Jugend hackt» Events vom 15 bis 17 August 2025 im Hackerspace «Bitwäscherei» in Zürich. Beim Projet Pet2Print ging es darum, ein eigenes Filament aus PET Flaschen, die in den Ozeanen als Abfall herumschwimmen, zu produzieren. Dafür haben Florin, Karl, Emil und Lev ein eigenes Gerät gebastelt, mit Kugellagern und einem Schneider, um das Vorprodukt, d.h. auf...

Was passiert wenn kritische Open Source Projekte nicht mehr gepflegt werden? Im November 2024 hat Perforce Inc mitgeteilt, ab sofort keine Open Source Pakete für Puppet mehr bereitzustellen. Von einem Tag auf den anderen wurden Git Repositories nicht mehr geupdated, Pull Requests wurden ignoriert. Vox Pupuli ist eine etablierte Community. In dem Vortrag geht es um die Interaktionen der Community m...

When it comes down to scaling time series monitoring solutions things can get messy. That’s one of the reasons why VictoriaMetrics, a Silver member of the Cloud Native Computing Foundation (CNCF), started its journey some years ago. It is a simple, reliable and efficient set of Observability Solutions that's been adopted by many organizations. It's open source, with a strong community behind it, w...

On the search for open and decentralized alternatives to commercial social media platforms many have given Mastodon and/or the Fediverse a try. But if you never made the jump or did not stay around for whatever reason you might be interested in what exciting new developments are happening in and around the Fediverse. In the past years changes in established social media platforms and political dev...

sq is Sequoia PGP’s primary command line tool. In this talk, I'll briefly present sq's design philosophy and architecture, and then I'll demonstrate several different workflows. sq is Sequoia PGP’s primary command line tool. In this talk, I’ll present sq. I’ll start by discussing sq’s design philosophy. In particular, I’ll explain how sq aims to firstly be a tool for end users, and not developers...

In dem Vortrag soll ein Überblick über Nix und NixOS mit Fokus auf Deployments von NixOS-Containern auf einem Server gegeben werden. Nix und NixOS sind extrem mächtige - und komplexe - Systeme. Gerade Container-Verwaltung und Deployment mit Nix kann sehr viele Vorteile haben. Dieser Vortrag hat das Ziel anschaulich einige Startpunkte für alle zu geben, welche ein Interesse daran haben Server mit N...

Vor noch vor 12 Monaten war es schwer, Softwareentwickler auf dem Markt zu gewinnen. Ein jahrzehntelanger Trend steigender Gehälter in einem wachsenden Markt wiegte alle in Sicherheit, dass dies so bleiben würde … Heute sind Softwareentwickler:innen leichter verfügbar als Handwerker:innen, die Preise sinken, Dienstleister kämpfen um ihre Existenz. Reicht es, dass der aktuellen wirtschaftlichen Ent...

Welche Art von Code wird im Forschungsprozess produziert und wie können wir ihn für spätere Nutzung aufbereiten? Wir sprechen darüber, wie wir Forschungsskripte langzeitarchivieren wollen, was Nachnutzbarkeit für Forschungscode aus der Psychologie bedeutet und geben einen Einblick in die Praxis. Mit der Open Science Bewegung halten auch neue Arten von Forschungserzeugnissen Einzug in die Wissensch...

In 2003, we created a security research project, that led to a development of several routers, designed and manufactured in EU. I'll talk a little bit about what we do and how, but I would like to speak more about our original goal - the security research project and what we noticed. Licensed to the public under http://creativecommons.org/licenses/by/4.0 about this event: https://programm.froscon....

Telefon, Video-Konferenz und Chat: unterschiedliche Medien brauch(t)en verschiedene Clients. Als simples, gut wartbares und desktopintegriertes Softphone gestartet, möchte das OSS-Projekt GOnnect die Bereiche SIP-Telefonie, Videokonferenzen und Chat seamless in einem Client vereinen. In diesem Vortrag kläre ich die Gründe, warum ein neues Softphone nötig war, was aktuell möglich ist und wohin die...