This is Nemo Command line controller for Sailfish OS phone connecting to the device over SSH.
If your Jolla has SSH enabled and is connected to a network, thanks to nemoc you will be able to use the phone from a terminal on your laptop or desktop.
To lock your phone from computer terminal just issue:
$ nemoc lock
To mute the phone:
$ nemoc mute
To unmute:
$ nemoc mute off
To call a number:
$ nemoc call +123456789
To send an sms:
$ nemoc sms +123456789 "Hi, could you call me in the evening?"
To switch Bluetooth state:
$ nemoc bluetooth on
$ nemoc bluetooth off
For more usage examples issue: nemoc -h