Digitization requires efficient software development. Today, this is no longer financially viable without the massive reuse of existing components and thus without the use of open source software as a generic product, also in the context of safety applications. Therefore, ways and means must be found to make open source software usable on a large scale for the railway sector. Due to the cooperative nature of open source software and the low competitive differentiation in the use of such generic products, the collaboration of various stakeholders from the sector under the governance of a Foundation can useful and important. This BOF wants to explore, if there is a critical mass to start a foundational backed project initiative for better spread of awareness for OSS in Railways and which activities exist to expand this approach for the safety-critical parts.

Linux is being used more often in safety-critical areas like cars, planes, medical devices, robots, and trains. But each industry faces similar challenges when trying to meet safety and certification requirements. This BoF is an open discussion about those real-world problems: timing and determinism, documentation, certification, tooling, and system design. Anyone interested in safety-critical Linux is welcome to join, share experiences, ask questions, and explore where collaboration could help.

Labgrid is an embedded board control python library with a focus on testing, development and general automation. It includes a remote control layer to control boards connected to other hosts.

This BOF is a chance to meet up with developers and users to discuss anything related to Board Farms and labgrid.

A meet-up for the Hare programming language community to meet each other face to face, discuss our work, and plan for the future of the language.

https://harelang.org

Let's chat about Git, Mercurial, Pijul, Jujistu... what makes them great or not so great and what they're currently doing to improve. Present in the room will be two Mercurial developers, the creator of Pijul and other people invested in this space, feel free to come, ask questions and bounce ideas!

Reticulum is a cryptographic mesh networking stack gaining attention for off-grid and emergency communications. The original Python implementation recently reached v1.0 but its maintainer has stepped back from public engagement, and the license prevents distribution in Debian, F-Droid, and major package managers.

This session brings together Reticulum users and developers to discuss practical migration paths. We will attempt live switching between implementations: Python Reticulum, RetiNet (AGPL fork), and the Rust rnsd daemon. Participants can bring laptops to test interoperability and identify friction points.

Discussion topics: current state of implementations (Python, Rust, C++ microReticulum, Go, Zig), community coordination without upstream, documentation gaps, embedded device support, and real-world deployment experiences.

Bring your RNodes, or laptops with Reticulum installed. No prior Reticulum experience required for observers.

Project: https://codeberg.org/lgh/Reticulum-rs/src/branch/daemon-mode Original Reticulum: https://github.com/markqvist/Reticulum RetiNet (AGPL fork): https://codeberg.org/skyguy/retinet

Lora Settings

[[interfaces]] name = "FOSDEM LoRa" type = "RNodeInterface" interface_enabled = true port = "/dev/ttyUSB0" frequency = 864200000 bandwidth = 125000 txpower = 5 spreadingfactor = 10 codingrate = 6

Showing what's possible with the E-Paper driver board from Modos. Including custom wood frame E-Paper 13 inch displays with 40 hz and color. Macbook M1 16 inch with an E-Paper screen. I will bring my hardware for you to test so you can try it out.

:TupperTerm

:TupperTerm is inspired by :TupperVim and the idea is simple: we come together and discuss our terminal workflows.

Show off your dotfiles, favorite CLIs, the TUIs you use. (if you have never heard of fzf maybe now is a good time to try it out) Maybe you're a big time Neovim user or maybe you're more of an helix person or Emacs.

Ever heard of tmux or zellij? Maybe you don't like terminal multiplexers.

The idea of TupperTerm is to exchange about all these things.

Join us in the SlimeVR BoF room after our presentation! https://fosdem.org/2026/schedule/event/TBFSCP-slimevr/ Please feel free to come say hi, ask us questions or just to hang out with us! For those that don't know us yet: SlimeVR is a fully open-source hardware and software company specializing in Virtual Reality full body tracking solutions.