--- title: Docker for Microcontrollers? AkiraOS combines Zephyr... description: AkiraOS is an open-source embedded OS built on Zephyr RTOS that runs sandboxed WebAssembly applications on microcontrollers. It separates the OS from... canonical: https://daily.dev/posts/docker-for-microcontrollers-akiraos-combines-zephyr-rtos-with-webassembly-wasm-applications-s5schsmoe twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Docker for Microcontrollers? AkiraOS combines Zephyr RTOS with WebAssembly (WASM) applications | daily.dev og:description: AkiraOS is an open-source embedded OS built on Zephyr RTOS that runs sandboxed WebAssembly applications on microcontrollers. It separates the OS from... og:url: https://daily.dev/posts/docker-for-microcontrollers-akiraos-combines-zephyr-rtos-with-webassembly-wasm-applications-s5schsmoe og:image: https://api.daily.dev/og/posts/s5SCHsmOE.png og:image:alt: Docker for Microcontrollers? AkiraOS combines Zephyr RTOS with WebAssembly (WASM) applications og:image:width: 1200 og:image:height: 630 og:locale: 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. # Docker for Microcontrollers? AkiraOS combines Zephyr RTOS with WebAssembly (WASM) applications **[CNX Software](https://daily.dev/sources/cnx-software)** · [@cnxsoft](https://daily.dev/cnxsoft) · 3 min read · 0 upvotes · 0 comments ## Summary AkiraOS is an open-source embedded OS built on Zephyr RTOS that runs sandboxed WebAssembly applications on microcontrollers. It separates the OS from application code, allowing .wasm binaries to be deployed and updated over-the-air without reflashing firmware. A single binary runs across ESP32-S3, nRF5x, and STM32 hardware targets. The runtime (Akiraz) supports up to 8 installed apps, a UI framework with 32 widgets, 18 API modules, and WAMR with both interpreter and AOT compilation modes offering 10–50x performance gains. Apps are sandboxed so a crashing app doesn't take down the device, and each app only accesses explicitly requested hardware resources. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [WebAssembly could solve AI agents’ most dangerous security gap](https://daily.dev/posts/webassembly-could-solve-ai-agents-most-dangerous-security-gap-cdnckygfi) · The New Stack · 1 upvotes · 0 comments - [ariel-os/ariel-os: Ariel OS is a library operating system for secure, memory-safe, low-power Internet of Things, written in Rust](https://daily.dev/posts/ariel-os-ariel-os-ariel-os-is-a-library-operating-system-for-secure-memory-safe-low-power-interne-ecviedjvc) · Lobsters · 6 upvotes · 0 comments - [Secure-by-design firmware development with Wasefire](https://daily.dev/posts/secure-by-design-firmware-development-with-wasefire-51kmeq8oh) · Google Open Source Blog · 0 upvotes · 0 comments --- Tags: [#embedded](https://daily.dev/tags/embedded), [#webassembly](https://daily.dev/tags/webassembly) [View this post on daily.dev](https://daily.dev/posts/docker-for-microcontrollers-akiraos-combines-zephyr-rtos-with-webassembly-wasm-applications-s5schsmoe) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Docker for Microcontrollers? AkiraOS combines Zephyr RTOS with WebAssembly (WASM) applications","url":"https://daily.dev/posts/docker-for-microcontrollers-akiraos-combines-zephyr-rtos-with-webassembly-wasm-applications-s5schsmoe","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/docker-for-microcontrollers-akiraos-combines-zephyr-rtos-with-webassembly-wasm-applications-s5schsmoe"},"datePublished":"2026-06-06T04:59:42.031Z","dateModified":"2026-06-07T01:00:11.366Z","description":"AkiraOS is an open-source embedded OS built on Zephyr RTOS that runs sandboxed WebAssembly applications on microcontrollers. It separates the OS from...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/f43b76e98772de50f9781602c84831fc?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/f43b76e98772de50f9781602c84831fc?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"CNX Software","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Person","name":"CNXSoft","url":"https://daily.dev/cnxsoft","image":"https://avatars.githubusercontent.com/u/1366138?v=4","interactionStatistic":{"@type":"InteractionCounter","interactionType":{"@type":"EndorseAction"},"userInteractionCount":370}},"commentCount":0,"discussionUrl":"https://daily.dev/posts/docker-for-microcontrollers-akiraos-combines-zephyr-rtos-with-webassembly-wasm-applications-s5schsmoe","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"embedded,webassembly","timeRequired":"PT3M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"CNX Software","item":"https://daily.dev/sources/cnx-software"},{"@type":"ListItem","position":3,"name":"Docker for Microcontrollers? AkiraOS combines Zephyr RTOS with WebAssembly (WASM) applications"}]} ```