
Programming, electronics and cycling nerd, bookworm and very passionate in learning . Left his own country at seventeen years old for studying and working abroad, and still searching for a place to settle. Big critic of fatalism and a fan of what-you-are-is-what-you-do way of thinking.
In professional life tries to be as pedantic as possible, believes that nothing is perfect and nobody is perfect and every solution should be questioned and evaluated. Likes to solve complex problems, even if it implies a lot of digging before stating the final solution. States that developing skills in different fields is important as well as perfecting a one field, because everything has its intersections and sometimes it is crucial to investigate something from a different angle.
Most of the time a workaholic, but sometimes a bit lazy. Not always punctual and often unconsciously altruistic.
- CROSSCON Hypervisor: virtualization on platforms without virtualization support

Engineering Manager at 3mdeb with years of experience in engineering and management. Open-source software enthusiast and contributor. Interested in embedded systems in general, build systems, security.
- Dasharo Tools Suite Status

Former System Software Development Engineer at Intel. Currently Junior Embedded Systems Developer at 3mdeb. Privately, a tinkering enthusiast. Media: danceswithmachines.github.io
- ZarhusBMC: OpenBMC for x11ssh SE

Junior Embedded Systems Engineer.
Interested in C++, Python, Linux and Yocto.
- Securing embedded Linux: Secure Boot, encryption and A/B updates with Yocto

Piotr Król is an open-source firmware enthusiast who founded 3mdeb in March 2015. His expertise is rooted in the hacker ethos of collaborative innovation and transparency, guiding 3mdeb's focus on projects like Zarhus OS, a Yocto-based Embedded Linux distribution, and Dasharo, a coreboot downstream project. These projects are dedicated to open development, embedded firmware resilience, platform security, transparency, the right to repair, and digital sovereignty.
Piotr's deep involvement in open-source firmware includes key computing areas such as Root of Trust, Secure, Verified and Measured Boot, TPM, coreboot, UEFI, EDK II, Yocto, U-Boot, and Linux. He often speaks at significant industry events like FOSDEM, Xen Developers Summit, and Platform Security Summit, sharing his insights and promoting the open-source firmware ecosystem. Piotr is dedicated to sharing knowledge by serving as a Trainer at OpenSecurityTraining2, offering free and open educational materials to advance the open-source firmware ecosystem.
- Welcome Zarhus Developers Meetup
- Zarhus Developers Meetup Closing Remarks