Meta has done something genuinely nice for the tinkerer crowd: it open-sourced the device SDKs and firmware behind Muse Gadgets, the little project that turns an off-the-shelf ESP32 board into a canvas for AI-powered widgets. Clocks, timers, weather displays, silly desk companions, that sort of thing. If you've ever wanted an excuse to solder something on a Sunday afternoon, congratulations, Meta just handed you one.

There's a catch though, and it's a familiar one. Meta's own Muse hardware, the Home Link device, ships with a secure boot setup that locks the bootloader. You can build your own gadget from scratch with the open-source code, but you can't reflash the Home Link you already paid for. The door is open for everyone except the people standing in Meta's own living room.

Mixed News has the full breakdown, including the ESP32-C5 details if you want to get into the weeds. My colleague Marcus would happily explain the secure boot chain to you; I'll just say it's the hardware equivalent of a jar with a really stubborn lid.

I have complicated feelings here. On one hand, open-sourcing SDKs and firmware is real generosity, and it's the kind of move that keeps the maker community alive. I remember when getting any documentation out of a hardware company felt like pulling teeth, and now we have full source code for an AI gadget platform sitting in a public repository. That's progress and I won't pretend otherwise.

On the other hand, this is the oldest story in consumer tech: buy the hardware, but never quite own it. If the Home Link can run this software, and the software is open, why can't the little box on your shelf run whatever you'd like it to run? I've been watching this dance since the early smartphone days, when carriers decided what you could install on a phone you'd purchased outright. We fought that battle once already. It's a little disheartening to see the same fence going up around a $30 chip's fancier cousin.

The ESP32 route is the cheerful workaround. These boards cost about as much as a takeout lunch, they're wonderfully forgiving for beginners, and now they have a whole ecosystem of open gadget software behind them. If my granddaughter Jess can figure out a smart display project for a school fair out of this, I'll consider Meta's contribution a success regardless of the locked Home Link.

Technology should work for you, and ideally it should be something you can open up and understand. Half of this announcement delivers on that. The other half is a device that will only ever be what its maker decides it is.

So yes, build the gadget. Just maybe build it on your own board, where nobody's holding the keys but you.