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Introducing Rufilla Labs: things we’re building in the open

Sep 29, 2026

by Joe Nicholson

Managing Director & Founder

Today we’re opening the doors on something we’ve been quietly working on: Rufilla Labs, a new home for all of our open-source work.

At Rufilla we are absolutely obsessed with open source. Every product we build stands on it: Linux, Zephyr, Yocto, KiCad, and countless smaller projects maintained by people we will never meet. Giving back to that community is part of the deal for us, and Labs is where we do it properly, in public, with everything free to use, fork and break.

There is also a more honest reason. So much of our client work sits under NDA that we rarely get to show our workings. Rufilla Labs is the part we can show: real projects, real design files, real mistakes, all in the open.

What’s in the lab already

Foxbridge
A Raspberry Pi-sized carrier board that breaks the LuckFox Core3506 compute module out to Ethernet, two USB-C ports, DSI and a 40-pin header. Revision A is built, reworked, and honest about its errata. View on GitHub
RK3506 Yocto layers
Build a bootable Linux image for the Core3506 on our Foxbridge carrier, with Ethernet, USB host and a DSI panel, all verified on hardware. View on GitHub
ESP32-C6 HAT
A Pi Zero form-factor board that hands any 40-pin host Wi-Fi 6, Bluetooth 5 LE, Zigbee and Thread. Hardware design only; bring your own firmware. View on GitHub
ZephyrMLForge
Our embedded ML experiment. An AI agent proposes a neural network, the pipeline trains and quantises it, runs it on a real Cortex-M under Zephyr, and feeds the measured latency back into the next proposal. View on GitHub

Everything ships under proper open licences (Apache-2.0 and MIT), with design files you can actually open and documentation that includes the errata rather than hiding them. Revision A of Foxbridge has three documented hardware faults. We think that is how open hardware should be done.

What’s coming

This is only the start. The whole Rufilla team will be working on Labs, and we have many, many more projects queued up to post: more hardware builds, more Yocto layers, more embedded ML experiments, and all sorts of other interesting things we haven’t thought of yet. It is going to be a very active site, and even the site itself is open source.

The best way to keep up is to watch github.com/Rufilla, or simply check back at labs.rufilla.com now and then.

Built at Culham

Labs is also an honest window into how we work. The same team behind these experiments delivers production embedded Linux, hardware and long-term support for companies like Octopus Energy and Oxford Instruments. If you like the way we build in the open, we’d love to hear what you’re building.

Building something similar?

Tell us about it and we will tell you how we can help.

Get in touch