Exhibitors

Apache OpenOffice is the leading open-source office software suite for word processing, spreadsheets, presentations, graphics, databases and more. It is available in many languages and works on all common computers. It stores all your data in an international open standard format and can also read and write files from other common office software packages.

Apache OpenOffice is the result of over twentyfour years’ free software engineering.

Ariel OS is a Free operating system for embedded systems (including ESP32, RP2040 and smaller microcontrollers). It is written in Rust, and combines the best of the Embedded Rust ecosystem (eg. embassy's asynchronous model and the embedded-hal traits) with new components (such as a preemptive multi-core scheduler and powerful build configuration) with the experience the developers gained in a decade of developing on RIOT OS.

We invite visitors to get to know the world of the smallest computers, to exchange ideas on applications that can work across the large spectrum of embedded systems, and to have fun trying out embedded development with us.

Bareos (Backup Archiving Recovery Open Sourced) is a cross-network Open Source backup solution (licensed under AGPLv3) which preserves, archives, and recovers data from all major operating systems. It includes numerous plug-ins which allow safely backing up and restoring not only files, but also various database servers (PostgreSQL, MariaDB, MySQL, MSSQL), LDAP directory services, cloud storages and virtual machines (VMware, oVirt).

CAcert is a community-driven Certificate Authority moved to Switzerland in 2024 issuing certificates to the public at large for free. We're issuing server certificates as well as client certificates.

Obviously there will be experienced Assurers at our booth to prove your identity towards CAcert by an ID-card or passport.

This year we'll show how CAcert-client-certificates could enable a password-less login to Wordpress, Drupal or other OpenIDConnect-capable software. This new functionality is be available to every verified CAcert-member.

Delivering at the speed of Chaos

To all entities inside or outside of Chaos events. We only accept postcards. We do not deliver letters. We do not accept packages of any size. We do have different postcards on site.

Remark: It's not the full-featured ChaosPost, we could only provide a subset at Froscon, so delivery will take some more time.

The chr terminal editor is inspired by the turbo pascal editor using Turbo Vision from the year 1997. For the keyboard shortcut he should be similar gedit, to facilitate the transition from desktop to console editor.

You are wondering which CMS is the best – or the best suitable for you? Find all the relevant open source CMS in one place: compare and decide. Brought to you by the communities themselves - welcome to the Garden where all the plants grow peacefully side by side!

CrypTool offers knowledge about cryptology and free tools to self-educate and to teach about cryptology. We are GDPR-compliant and don't collect personal data.

Our subprojects:

CrypTool-Online (CTO) offers you many online apps to experiment with concepts of cryptology. Ciphers, codings, cryptanalysis, and games. Easily in your browser.

CrypTool 2 (CT2) is the successor of the famous CrypTool 1. You can use it to visually connect a whole range of cryptologic components to see how they work together and to build your own workflow.

MysteryTwister is an online contest that offers you cryptological puzzles. There are four levels: I is for beginners, II gets a little harder, III is really hard, and the solutions to X are mysteries! Find out.

Teach cryptology in school
Learning course for 11th grade
Especially created for the 11th grade of Bavarian schools. Gives you a step-by-step introduction to codings and ciphers, with tasks to prove your understanding.

Decipher historical manuscripts
CrypTool Transcriber & Solver
George Lasry contributed a Java tool that you can use to transcribe and cryptanalyze historical encrypted manuscripts. For historians and linguists interested in cryptology.

And some more ... which you can find with detailed descriptions on our website.

The German-speaking TeX User Association (DANTE e.V.) was founded on April 14, 1989, in Heidelberg.

The purpose of this non-profit association is to support TEX users throughout the German-speaking world.

We support you in selecting and installing TEX/LATEX, help solve user and developer problems, provide you with information about TEX and LATEX, and distribute TEX software. DANTE e.V. also supports developments in the areas of TEX, LATEX, ConTEX t, LuaTEX, Metafont, BibTEX/BibLATEX, and fonts both with personnel and financial support at the national and international levels.

Datenburg e.V. is a hackspace and the "Chaostreff" of Bonn. We are a community of people who find science, technology and digital art exciting. We discuss net-political and social topics, work together on projects, organize workshops and lectures on topics that interest us, and much more.

The smart community calendar (Der smarte Gemeinschaftskalender) is an open source solution that optimises the planning and communication of events in communities and organisations.
Technically, the project is based on Mobilizon, which is used to federate events in Fediverse.
Various automated functions support event organisers in creating and managing their events. The existing semantic data can also be used to create advertising material in other formats or integrate it into other pages.

Users also have the option of receiving regular information about events by email, for example.

The project was funded by the state of Schleswig-Holstein as part of the ‘Call for Concepts’ programme and implemented together with the local authority of Süderbrarup and 54 Grad Software GmbH.

Translated with DeepL.com (free version)

In a world where digital tools often appear complex and non-transparent, the Digital Empowerment Project (DEP) focuses on transparency,
data protection and collaboration. With open source solutions and personal advice, DEP supports NGOs and associations on their way to more digital
self-determination. All services - from advice and tools to training - are free of charge.

DEP does not sell products, but provides knowledge, advice and open source tools free of charge - for a fair, inclusive digital future. The Digi-Self-Check provides organizations with an IT security analysis, the Digi-Coach offers advice, and Digi-Guides accompany the digital transformation until 2026.

Funded by the German Television Lottery, the DEP invites NGOs and associations to take part in the Digi offers and achieve digital independence. Numerous groups receive support to implement secure and accessible IT solutions.

EVerest is an open source software stack for standards-compliant, interoperable, and secure EV charging.
Abstracting away the complexities of reliably communicating with vehicles and backend systems, enables successful charging sessions through robust implementations of the relevant communication protocols, such as ISO 15118-2/20 (including Plug & Charge) and OCPP 2.0.1/2.1 and 1.6.
EVerest runs on a diverse set of hardware, from unmanaged AC home chargers to complex multi-EVSE satellite public DC charging stations with battery and solar support.
EVerest is an Apache 2.0 licensed project within Linux Foundation Energy.

The Fedora Project is a community of people working together to build a free and open source software platform and to collaborate on and share user-focused solutions built on that platform. Or, in plain English, we make an operating system and we make it easy for you to do useful stuff with it.

The CentOS Project is a community-driven free software effort focused on delivering a robust open source ecosystem around a Linux platform.

This toolkit aims at providing flexible and powerful tools for data analysis and modelling, but remain easy to use.

We aim to strike a balance between the two extremes in this field. On one side are toolkits such as Kafe2, which prioritize ease of use and convenience but limit user control over the output. On the other side are data analysis systems like CERN's ROOT, which offer exceptional speed and capability but come with a steep learning curve and exceed the requirements of most experiments.

This package is aimed primarily at my peers, students of physics at the university of Bonn, and to a degree at professionals within my field. It is written for small scale applications, typical for a lab course, however still aims at exceptional performance.

Using the different functions provided by scipy and numpy this toolkit implements curve and distribution (peak) fitting with both least squares and maximum likelyhood estimation methods.

Flatcar is a fully open source, community-driven, minimal-footprint, secure by default and auto-updating Linux distribution for running containers at scale.

FOSSASIA is an organization dedicated to fostering the development and adoption of open source technologies across Asia and beyond. Founded in 2009, FOSSASIA has grown into a vibrant community of developers, designers, and contributors who collaborate to create innovative solutions that are freely accessible to everyone. The organization's projects span various domains, including software and hardware. FOSSASIA is committed to creating a sustainable ecosystem where open source projects can thrive, offering support through mentorship, resources, and collaborative opportunities. All FOSSASIA projects are publicly accessible https://github.com/fossasia

A number of projects and distributions are working on bringing Linux and Free Software to mobile devices.

Members of these projects will be presenting devices to try and answer your questions.

Projects:
- Phosh
- PostmarketOS
- Mobian

FreeCAD is an open-source CAD software that allows engineers to design, simulate, and prepare machines, tools, fixtures, and other products for manufacturing. FreeCAD is modular in structure, with the core modules covering the most important functions needed in a designer's daily work. In addition, modules for niche applications can be downloaded via the Addon Manager.

Free Software Foundation Europe is a charity that empowers users to control technology.

Software is deeply involved in all aspects of our lives. Free Software gives everybody the rights to use, understand, adapt, and share software. These rights help support other fundamental rights like freedom of speech, freedom of press, and privacy.

Free Your Model Train (FYMT) is a project of the Freien Software Freunde, which aims to control model trains using microcontrollers, a rechargeable battery power supply and wireless operation. The aim is to convert existing models easily and inexpensively, thereby introducing more people to technology in general and Free Software and Free Hardware in particular.

Free networks are being set up and maintained by more and more people on their own initiative. Every participant in the Freifunk network shares their Wi-Fi router to enable data transfer for the public. This expands the network and opens up the possibility to exchange data — such as text, music, and movies — within the Freifunk network, or to use services provided by participants to chat, make phone calls, or play online games together. For this, we use mesh networks.

Many also share their internet connection, giving others access to the global internet. Freifunk networks are do-it-yourself networks. To set them up, we use the Freifunk firmware on our Wi-Fi routers, a special Linux distribution.

Local communities adapt this software to their needs and make it available on their websites. In villages and cities, more and more Freifunk groups are forming and meeting regularly.

The Freifunk community is part of a global movement for free infrastructure and open radio frequencies.

Our vision is the democratization of communication media through free networks. Freifunk communities around the world are putting this idea into practice.

The Genode OS framework is an operating-system technology created from scratch. Being a component-based system designed after the principle of least privilege from the very beginning, it breaks with many concepts that we take for granted in traditional operating systems. Instead, Genode introduces a novel way of composing system scenarios out of building blocks where the building blocks are able to cooperate without ultimately trusting each other. Those building blocks include not only applications but also all classical OS functionalities including kernels, device drivers, file systems, and protocol stacks.

In particular, these principles are showcased by Sculpt OS, a Genode-based general-purpose OS. Since it is not derived from any existing OS, Sculpt re-approaches established concepts like the installation, configuration, and program spawning from a new angle. This is reflected by its custom user interface.

Sculpt is used as day-to-day OS by the Genode developers. With various ports of common APIs, we are able to run existing software from POSIX command-line tools to graphical Qt applications. On top of that, commodity OSes can be run in a virtual machine. By reusing Linux driver code in isolated components, Sculpt runs on commodity PC hardware and on ARM based hardware like the PinePhone or the MNT Reform. At our booth, we exhibit the current state of Sculpt OS on these devices. We Genode developers are eager to be at FrOScon to spread the ideas and to get in touch with existing and new users.

Kairos is an open-source Linux meta-distribution built for the cloud-native era, designed to simplify deploying and managing Kubernetes clusters—especially on the edge, on-premises, and bare-metal environments. It empowers users to create fully customizable, immutable operating system images based on popular distributions like Alpine, Ubuntu, or Fedora, all optimized for Kubernetes workloads.

At its core, Kairos turns container images into bootable systems, enabling seamless integration with CI/CD workflows and ensuring consistent, declarative infrastructure from development to production. With support for advanced security features like Trusted Boot and system immutability, Kairos brings modern DevOps practices to environments that have traditionally been harder to automate.

Whether you're managing a fleet of edge devices or building a resilient Kubernetes-based infrastructure from the ground up, Kairos provides a flexible, reliable foundation that meets the needs of both hobbyists and enterprise users alike.

Strong identity and access management is a key component of a zero trust architecture for classic and cloud native applications. Keycloak is well-known for its single-sign-on capabilities based on open standards like OpenID Connect and SAML as well as its extendibility. It provides you all the building blocks you need to run this in self-hosted environments on-premise and in the cloud. It lets you securely manage your users’ data, credentials and permissions, offers strong authentication, and acts as an integration hub for internal and external identity providers.

Kiwi TCMS is a popular open source test management system with over 2 million downloads which traces it's existence back to 2009 as an internal project at Red Hat!
It is a fork of a fork and is one of the very few open source projects with active development in this domain space.

It can be used for both manual and automated testing and features bug tracker integration, search pages, powerful access control, test automation framework plugins, visual reports and rich API layer. To goal of Kiwi TCMS is to act as a central database for test results and the primary user is a software tester or a QA manager!

Kiwi TCMS is built with Python+Django and can be installed as a container!
Almost everything our team does is licensed under GNU GPL and we've been working very hard to create a self sustainable open source project.

NewPipe is a FOSS Android app for media streaming platforms, with a focus on being privacy-friendly and lightweight. It supports YouTube, PeerTube, SoundCloud and Bandcamp, and allows searching content, playing videos, listening to playlists in the background, aggregating subscription feeds, saving bookmarks, …

In 2022, TeamNewPipe members founded NewPipe e.V., a German non-profit association with the purpose of promoting technology that enables and simplifies the use of digital media, especially if it is free and open source. NewPipe e.V. provides funding, infrastructure and bookkeeping support to projects like NewPipe (your project could be next!), facilitates code contributions and collaboration, and organizes meetups and events. (Note that NewPipe e.V. is incapable of extracting profits, but is not considered beneficial to the public in the sense of § 52 AO.)

The open Home Automation Bus (openHAB, pronounced ˈəʊpənˈhæb) is an open source, technology agnostic home automation platform which runs as the center of your smart home!
Some of openHAB's strengths are:
Its ability to integrate a multitude of other devices and systems. openHAB includes other home automation systems, (smart) devices and other technologies into a single solution
To provide a uniform user interface and a common approach to automation rules across the entire system, regardless of the number of manufacturers and sub-systems involved
Giving you the most flexible tool available to make almost any home automation wish come true; if you can think it, odds are that you can implement it with openHAB.

OpenRadioss is free, publicly available FEA software for simulation of impact, shock and highly dynamic events, you may download stable pre-built executables for Windows or Linux or compile yourself from the source code base hosted at GitHub

OpenRadioss primarily uses the same input format and source code as the commercial software Altair® Radioss® that is widely used in industry

For more than three decades, the world’s top industrial, research and development, and educational organizations have employed Radioss to solve complex linear and nonlinear engineering problems. In September 2022, Altair introduced OpenRadioss, open-source software designed to bring together a worldwide community of experts and users to make the world a safer, greener place

OpenRadioss has a worldwide community of researchers, software developers, and industry leaders that are enhancing it every day. And you can joint it! OpenRadioss is changing the game by empowering users to make rapid contributions that tackle the latest challenges brought on by rapidly evolving technologies like battery development, lightweight materials and composites, human body models and biomaterials, autonomous driving and flight, as well as the desire to give passengers the safest environment possible via virtual testing

With OpenRadioss, scientists and technologists can focus their research on a stable code base under professional maintenance that benefits from the large library of existing finite element capabilities and the continuous integration and continuous development tools provided to contributors

OpenStreetMap (OSM) is an international project with the goal of creating a free map of the world. To achieve this, we collect data about streets, rivers, forests, houses, restaurants, and much more from around the world.

Introducing the community behind the openSUSE distribution. With openSUSE Tumbleweed, openSUSE Leap and MicroOS, different versions of the distribution are available for a wide range of applications. Tumbleweed is always up to date as a rolling release. Leap offers a stable base with long development cycles. With MicroOS, another path is being taken with a container-based variant. What they all have in common are the proven tools of openSUSE, an extensive software archive and a large community of users and developers. Depending on their own skills, interested parties can participate in many different areas of the project.

Open Source Audio Meeting Cologne (OSAMC) is a monthly recurring meeting with news, lectures and demonstrations on the topic of music with free and open source software in Cologne-Ehrenfeld. Everyone who is involved with FLOSS and audio-related topics is welcome, whether developers, educators, musicians, etc. We organize the annual Sonoj with an international community program and maintain contact with projects and people in the field of free audio software and ecosystems. No brands, no marketing - just people presenting homegrown solutions, hidden gems and free tools that deserve a wider audience.

Qubes OS is a free and open-source, security-oriented operating system for single-user desktop computing.

At our booth we're presenting the upcoming release 4.3 not only on a 12-year-old x230 using Heads as a Bios-replacement, we answer questions regarding Qubes OS and show some solutions or workarounds, if there is a more complex configuration needed.

RIOT is a free, open-source operating system for the Internet of Things with a focus on low resource requirements, ease of use and a friendly and open community. It is jointly developed by companies, universities and hobbyists spread all over the world. RIOT supports most low-power IoT devices, microcontroller architectures (32-bit, 16-bit, 8-bit), and external devices. RIOT aims to implement all relevant open standards to support an Internet of Things that is connected, secure, dependable and privacy focused.

Termpaint is a low level terminal interface library for character-cell terminals in the tradition of VT1xx (like xterm, etc).

It’s designed to be portable and flexible to integrate. It covers event handling and rendering.

Tui Widgets is high-level widget based toolkit for terminal applications.

Tui Widgets is designed to be flexible and similar to use to Qt graphical widgets. Its look and feel is similar to graphical applications or classic full screen terminal applications from the PC world of the 90s.

Sustainable hardware that you can trust is now more than ever critical for your infrastructure. Almost twelve years ago, we started developing open source router. It is designed and manufactured in EU. And of course, there are security updates, and you get a root account, because it is your device. And we are pushing the support to vanilla kernel, because just in case you decide to build your own OS to have even more control.

We are part of CZ.NIC, Czech domain registry. Our colleagues also develop plenty of open source software that is powering various parts of the Internet like Bird or Knot DNS.

T2 SDE (System Development Environment) is a highly customizable and portable build system for creating complete Linux distributions from source. It serves as a robust toolkit for building everything from embedded platforms to full desktop systems, offering unmatched flexibility and control.

Extensible Messaging and Presence Protocol (XMPP, originally named Jabber) is an open communication protocol designed for instant messaging (IM), presence information, and contact list maintenance. Based on XML, it enables the near-real-time exchange of structured data between two or more network entities. Designed to be extensible, the protocol offers a multitude of applications beyond traditional IM in the broader realm of message-oriented middleware, including signalling for VoIP, video, file transfer, gaming and other uses.

CC-BY-SA https://en.wikipedia.org/wiki/XMPP