--- title: "How to Configure Zephyr RTOS: A Practical Guide to West, Kconfig, proj.conf" url: https://daily.dev/posts/how-to-configure-zephyr-rtos-a-practical-guide-to-west-kconfig-proj-conf-ojbhqmygm source_url: https://www.beningo.com/how-to-configure-zephyr-rtos-a-practical-guide-to-west-kconfig-proj-conf type: article source: "Beningo Embedded Group" published: 2026-05-31T07:47:57.595Z updated: 2026-05-31T08:50:37.895Z tags: ["embedded"] reading_time: 12 upvotes: 0 comments: 0 language: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # How to Configure Zephyr RTOS: A Practical Guide to West, Kconfig, proj.conf **[Beningo Embedded Group](https://daily.dev/sources/beningo)** · 12 min read · 0 upvotes · 0 comments ## Summary A practical guide to understanding how West, Kconfig, and prj.conf work together in Zephyr RTOS projects. West acts as the workspace and build manager, Kconfig handles compile-time feature configuration with dependency resolution, and prj.conf provides application-level overrides. The guide uses an NXP FRDM-MCXN947 board as a concrete example, covers menuconfig and guiconfig tools for exploring available options, and compares Zephyr's layered configuration approach to FreeRTOS's flat FreeRTOSConfig.h model. Practical next steps include setting up a project with MCUXpresso for VS Code, experimenting with Kconfig tools, and refining prj.conf settings. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: --- Tags: [#embedded](https://daily.dev/tags/embedded) [View this post on daily.dev](https://daily.dev/posts/how-to-configure-zephyr-rtos-a-practical-guide-to-west-kconfig-proj-conf-ojbhqmygm)