Edit: Yeah, so the CLI sends data over HTTP(s) to whatever host you configure it to, that could be public or not. As I've said in https://github.com/jamesrwhite/minicron#security though until I add authentication to a bunch of places and review some other things I don't recommend exposing the hub to the public internet, it should be behind a firewall or only accessible over a VPN etc. Hopefully that clears it up a bit but let me know if not!