tl;dr: Meta has released open source SDKs (Apache 2.0) for building DIY "Muse" gadgets on ESP32 boards or Linux devices like the Raspberry Pi, letting hackers wire up displays, mics, speakers, and sensors to their Muse AI assistant. Example builds include a Home Assistant integration on Pi, an HDMI stick for TVs, e-ink displays, and various small ESP32 touchscreen devices. Source code and firmware are available on GitHub, with a Discord community for collaboration.