field notes from an embedded software specialist

The software that runs on hardware you didn't know was a computer.

I'm Jhonata Poma-Hansen - bomba for short. Embedded Software Specialist at Bang & Olufsen, based in Hvidovre, raised in Catania between Linux user groups and rap jams. This blog is where I write up what I'm doing when it's gnarly enough to deserve a careful explanation - mostly Yocto, BSP bring-ups, kernel work, and occasional field notes from the rack.

Recent writing

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  1. A modular NixOS flake for four hosts: one codebase, one Justfile, no drift

    How I manage four NixOS machines (server + three desktops) from a single flake: profiles, modular composition, sops-nix secrets, hot-reload dotfiles, and a Justfile that hides the rough edges.

  2. Moving cinque.dk off WordPress in an afternoon (and two or three hairy gotchas)

    From a WP multisite with Elementor, PHP-FPM, and MariaDB — to pure static nginx in one afternoon. The plan, the gotchas, and the 500 MB of RAM I got back.

  3. Building TurboRelic: a Yocto distro for the Anbernic RG353V, from first boot to a hot pink web dashboard

    Seven weeks, 62 libretro cores, a custom web dashboard streaming the screen in HW-encoded MJPEG, and the BSP decisions I'd make again.