https://mateusz-fejcher7.github.io/Build logs from an embedded systems engineer working with Qt and Yocto — problems, approaches, and results from real embedded/firmware projects. 2026-09-05T14:20:07+02:00 Mateusz Fejcher https://mateusz-fejcher7.github.io/ Jekyll © 2026 Mateusz Fejcher /assets/img/favicons/favicon.ico /assets/img/favicons/favicon-96x96.png 2026-09-05T13:42:00+02:00 2026-09-05T13:42:00+02:00 https://mateusz-fejcher7.github.io/posts/yocto-qt-helloworld-journey/ Mateusz Fejcher

The goal Power on a Raspberry Pi 4B. No login prompt, no desktop, no commands typed. A Qt QML application appears fullscreen, on its own, a few seconds later. That is how a real embedded product behaves. A payment terminal, an industrial HMI panel, a car infotainment head unit, a smart thermostat - none of them boot to a shell and wait for you. They come up as the thing they are. This post...

2026-08-11T20:02:00+02:00 2026-09-05T14:19:24+02:00 https://mateusz-fejcher7.github.io/posts/yocto-qt-helloworld-repository-guide/ Mateusz Fejcher

This post is a guided tour of yocto-qthelloworld-project - a complete, reproducible Yocto setup that builds a minimal Linux image for the Raspberry Pi 4B and launches a fullscreen Qt6/QML application automatically on boot. Part 2 - the full journey with every decision, dead end, and hard-won fix - is up: Yocto + Qt6 on Raspberry Pi 4B: Full journey. What you get at the end A Raspberry Pi 4B ...

2026-07-06T12:00:00+02:00 2026-07-06T12:00:00+02:00 https://mateusz-fejcher7.github.io/posts/the-simplest-yocto-build-on-raspberry-pi/ Mateusz Fejcher

Setting up a Yocto (Poky) build from scratch always turns up a handful of sharp edges, even when you know your way around embedded Linux. Here’s how I bootstrapped a Scarthgap LTS image for a Raspberry Pi 4B, the hardware and BIOS decisions behind the setup, and the pitfalls worth knowing before you hit them yourself. If you want the deeper dive, I walk through this build in more detail on You...