--- title: "Looking Inside and Creating Your Customized Image" url: https://daily.dev/posts/looking-inside-and-creating-your-customized-image-nauzl5sb7 source_url: https://www.embeddedrelated.com/showarticle/1543.php type: article source: "EmbeddedRelated" published: 2026-05-31T07:48:08.110Z updated: 2026-06-04T02:13:02.546Z tags: ["embedded", "rtos", "rust"] reading_time: 9 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. # Looking Inside and Creating Your Customized Image **[EmbeddedRelated](https://daily.dev/sources/embeddedrelated)** · 9 min read · 0 upvotes · 0 comments ## Summary Part 2 of a NuttX RTOS getting-started series. Covers the NuttX source tree structure (arch, boards, drivers, fs, sched, etc.), how to list and switch board profiles, how to use menuconfig to enable applications (with search tricks for resolving dependencies), and how to save a custom defconfig as a reusable board profile. Includes a practical walkthrough: enabling the getprime benchmark app, compiling it, running it in the simulator, and saving it as a new board profile for future use. Also briefly demonstrates running a Rust Hello World example on the simulator. ## 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), [#rtos](https://daily.dev/tags/rtos), [#rust](https://daily.dev/tags/rust) [View this post on daily.dev](https://daily.dev/posts/looking-inside-and-creating-your-customized-image-nauzl5sb7)