Zephyr on Pi Stack https://www.pistack.xyz/tags/zephyr/ Recent content in Zephyr on Pi Stack Hugo en-us Wed, 23 Sep 2026 00:00:00 +0000 Zephyr vs NuttX vs RIOT OS in 2026: Which Open-Source RTOS Should You Actually Ship? https://www.pistack.xyz/posts/2026-09-23-embedded-rtos-zephyr-nuttx-riot-os-comparison/ Wed, 23 Sep 2026 00:00:00 +0000 https://www.pistack.xyz/posts/2026-09-23-embedded-rtos-zephyr-nuttx-riot-os-comparison/ <p>Three commercial RTOS vendors still quote five-figure annual seat licenses to firmware teams in 2026, while Zephyr (16,586 GitHub stars), RIOT OS (5,804) and Apache NuttX (4,044) all shipped commits within the last 24 hours of writing. The real question is no longer &ldquo;can open source run my product&rdquo; — it is &ldquo;which of the three open-source kernels matches my board, my team and my certification path&rdquo;.</p>