Meta published the firmware and device SDKs for Muse gadgets in the GitHub repository facebookincubator/muse-gadget-sdk. GitHub shows the repository was created on 2026-10-02. The README says the license is Apache-2.0, except for a few listed third-party files. There are no tags. The README’s instructions use main, so pin a commit for a reproducible build.
What the repository holds
There are two SDKs. The ESP32 SDK is firmware for off-the-shelf boards. The Linux SDK turns “any Linux computer, like a Raspberry Pi, into a Muse gadget.”
What stays on Meta’s side
The README says: “Every gadget needs a token to pair.” The token comes from gadgets.muse.ai, and both SDK READMEs add that this includes gadgets “you build for yourself.” Pairing goes through the Muse app on iOS or Android, with Developer mode turned on. The README also asks you to review the Gadget SDK Terms before flashing or pairing.
What the Linux SDK can do on your machine
The Linux README lists four commands. One is system.run. The README defines it as “Runs a shell command and returns its output and exit code.” The README states the scope: commands run “with exactly that account’s permissions. If it can use sudo, so can Muse.” The installer accepts --run-as to pick a different account, “such as one without sudo.”
Both SDK READMEs say that pairing “has no manufacturer verification and can’t prevent an active man-in-the-middle attack. Set it up on a network you trust.”
The backend already broke one feature
Issue 6, opened on 2026-10-02, the day the repository was created, reports that every push-to-talk reply failed with a canned error. The fix, pull request 12, gives the cause: voice turns went “to a voice model that’s no longer served.” The firmware now requests text replies. The ESP32 README says spoken answers need a text-to-speech API of your choice.
What the sources do not state
The repository pages do not include source code for the Muse backend or for the Muse Home Link device shown in the README image. They give no unit counts. The content of the Gadget SDK Terms was not reviewed for this post. No independent hands-on test is cited here.
What to do
- Read the Gadget SDK Terms before you request a token.
- On Linux, install with
--run-asand an account without sudo. - Pair only on a network you trust.
- Pin a commit, since there are no tags.
- Watch the issue tracker for service changes that may require SDK updates.
The Campfire
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Held for the desk. It appears after a look.