{"podcast":{"title":"FLOSS Weekly","slug":"floss-weekly","podcast_index_feed_id":6743816,"rss_url":"https://feeds.libsyn.com/499093/rss","website_url":"https://hackaday.com","image_url":"https://static.libsyn.com/p/assets/1/3/4/3/1343296ffb55bc3b88c4a68c3ddbc4f2/FLOSS.jpg","author":"Hackaday","episode_count":116,"summary":"It's the OG podcast about Free, Libre, and Open Source Software, FLOSS Weekly! Join us each Wednesday as Jonathan Bennett and the posse of Co-hosts interview big names of Free Software, cover utterly fascinating Open Source Projects you may have never heard of, and cover the news about software you use every day without even realizing it.","last_synced_at":"2026-07-23T08:20:24.867360+00:00","page_url":"https://stenobird.com/podcast/floss-weekly"},"episode":{"title":"FLOSS 854: The Big Daddy Core","slug":"floss-854-the-big-daddy-core","published_at":"2025-11-12T16:38:00+00:00","page_url":"https://stenobird.com/podcast/floss-weekly/floss-854-the-big-daddy-core","show_page_url":"https://stenobird.com/podcast/floss-weekly","url":"https://b27a1a7a-dbb9-4922-ac3e-601e2d6ca1e1.libsyn.com/floss-854-the-big-daddy-core","audio_url":"https://traffic.libsyn.com/secure/b27a1a7a-dbb9-4922-ac3e-601e2d6ca1e1/FLOSS-854.mp3?dest-id=4272468","summary":"Ochre and Atym.io bring cloud-native containerization to resource-constrained embedded systems using WebAssembly. This approach allows developers to run modular, isolated workloads on everything from Linux to Zephyr-based MCUs.","meta_description":"Explore how Ochre uses WebAssembly to bring Docker-like containerization to embedded devices and the Zephyr OS, enabling secure, modular IoT updates.","key_points":["Main idea: Ochre acts as a lightweight WebAssembly VM that enables 'Docker on a diet' for embedded hardware","Practical takeaway: Developers can lift and shift existing C code into containers to gain memory protection without a full rewrite","Failure mode: Traditional Docker is too heavy for MCUs, requiring a much smaller footprint for low-memory environments","Practical takeaway: Modular containers allow for updating specific drivers or features without needing to recertify the entire device firmware","Main idea: The technology enables 'Software Defined IoT' by decoupling hardware-specific firmware from application logic"],"chapters":[{"start_ms":60000,"title":"Introduction to Ochre and Atym.io","summary":"The hosts introduce Jason Shepherd to discuss the intersection of WebAssembly, containers, and embedded systems."},{"start_ms":360000,"title":"The Vision for Cloud-Native Embedded","summary":"Jason explains how Atym.io brings cloud-native principles and continuous delivery to the embedded space using the Apache 2.0 licensed Ochre."},{"start_ms":625000,"title":"Overcoming the Overhead of Docker","summary":"A discussion on why traditional container runtimes are too resource-intensive for devices with limited RAM and the benefits of WebAssembly."},{"start_ms":920000,"title":"Targeting Low-Power MCUs","summary":"Exploring the use case for running containers on modern microcontrollers with very small memory footprints."},{"start_ms":1195000,"title":"Security and Certification Benefits","summary":"How containerization helps manage the Cyber Resilience Act and allows for updating code without re-certifying the entire firmware stack."},{"start_ms":1470000,"title":"Ahead-of-Time Compilation","summary":"Details on how Atym.io provides AOT compilation to translate WebAssembly into native instructions for specific hardware."},{"start_ms":1740000,"title":"Software Defined IoT","summary":"The emergence of SD-IoT and the security advantages of using WebAssembly to mitigate C-based memory vulnerabilities."},{"start_ms":2840000,"title":"The Future of Embedded Networking","summary":"Discussing the path forward for software-defined networking and the integration of WebAssembly into the broader ecosystem."}],"topics":["WebAssembly","Embedded Systems","Containerization","Zephyr OS","IoT Security","Microcontrollers","Cloud Native","Ochre VM"],"duration_seconds":3640,"processing_state":"processed","actions":[{"name":"request_transcript","method":"POST","url":"https://stenobird.com/v1/public/podcasts/floss-weekly/episodes/floss-854-the-big-daddy-core/transcription-requests","description":"Idempotently request low-priority transcript generation for this episode."},{"name":"read_markdown","method":"GET","url":"https://stenobird.com/podcast/floss-weekly/floss-854-the-big-daddy-core.md","description":"Read the agent-friendly Markdown representation of this episode resource."}]}}