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I promised an alternative to the firmware monolith. The WANTED engine is public now — here's what actually builds and runs, and what's still a TBD.
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You wouldn't ship your entire microservices backend as a single statically-linked binary running as root on an unpatched server, right? Yet that is exactly the architecture running on embedded devices everywhere — from smart-home sensors to industrial controllers. Embedded firmware is stuck in the pre-container era — unisolated, un-hot-swappable blobs. This is the first post in a series on WANTED, a new general-purpose cloud-native runtime for embedded devices.
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Siphon v0.5.0 introduces the critical new feature for a gateway app: zero-downtime hot reloading. A powerful new integration is also showcased — using tailscale funnel and the {API}Call Garmin widget to securely bridge a watch to Home Assistant via MQTT, without exposing a single port on my router.
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With the release of the v0.4.x series, Siphon has officially outgrown its initial "script replacement" phase. I have completely stripped and rebuilt the core memory bus, introduced a highly opinionated v2 declarative schema, and, most importantly, packaged the entire engine as a native Home Assistant Add-on.
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If you are exposing your Home Assistant instance directly to the Internet, you are playing Russian roulette with your local network. It only takes one zero-day vulnerability in a custom integration to give a botnet full access to your smart home and everything else on your LAN. But we live in a connected world. You still need a way for external services—like a GPS tracker on your car, a webhook from a Garmin watch, or a custom script running on a remote VPS to push data into your home.
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With our custom ESP32 wireless flasher built and tested in Part 2, we finally severed the USB cord. Now it was time to actually run some code on the clock's STM32F105RB.
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Let’s be honest: the reality of hardware reverse engineering usually involves sitting hunched over a cluttered desk, tethered to your target device by a short USB cable, constantly manually resetting the board. I don't have much space on my desk, and I absolutely despise cable clutter.
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Sometimes the best hardware hacking projects start because you refuse to accept terrible UX.
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The gap between Cloud infrastructure and Embedded systems is too wide. Here is how I plan to bridge it with Microservices, Embedded, Kernels and Operations.
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