API connector to the Balena.io platform.  
"Balena is a complete set of tools for building, deploying, and managing fleets of connected Linux devices."

More info on the Balena platform can be found here?
https://www.balena.io/what-is-balena

"The balena Supervisor is balena's agent that runs on devices. Its main role is to ensure your app is running, and keep communications with the balenaCloud API server."

API Overview: https://www.balena.io/docs/reference/api/overview/

Supervisor API: https://www.balena.io/docs/reference/supervisor/supervisor-api/