It says make it your own. Then

> Gadgets you build with the Muse Gadget SDK need a token. Add it to your SDK configuration so your gadgets can pair with the Muse app.

> Each token can be used by a limited number of devices.

> The Muse Gadget SDK is intended for personal tinkering and is not a supported product or developer platform. The SDK can change, break, or stop functioning without warning.

Doesn't really feel like it's my own.