I see networkBoards list when I call arduino-cli board list --format json, but it's always empty, even when I see the board in the Arduino IDE.

I tested it with esp8266:esp8266:wifi_slot board on MacOS Sierra.

I see that you are using monitor.Network() in the board/list.go, so I assume it should work. But it's not.

Is this a real bug or it just not implemented yet?