Brussels / 3 & 4 February 2024


Waldemar Kozaczuk

Photo of Waldemar Kozaczuk

Waldek Kozaczuk is a software developer and architect. During the day he is busy designing and building components of the video supply chain for CNN at WarnerBros Discovery. During the night he is busy improving OSv, an open-source versatile modular unikernel designed to run a single unmodified Linux application securely on top of a hypervisor. He has been contributing to the project since 2016, when he first got exposed to and fascinated by OSv. During this time, he has contributed over 800 patches, which most notably involved enhancing OSv to run on AWS firecracker ( and improving ARM port. Finally, he gave a presentation about OSv at the P99 conference in 2021 ( and FOSDEM23 (


Title Day Room Track Start End
Support Dynamically Linked Executables via Linux and Implement ENA Driver to Expand Application of OSv
Saturday UD2.208 (Decroly) Microkernel and Component-based OS devroom 18:20 18:40