Fuchsia target devices must be connected to a host device via a network link. SSH is the protocol for communications over that link, as described in this document.
Getting the Fuchsia device address can be done using ffx.
In order to flash a device, start a bootserver on the host and restart the device into its bootloader.
The unit of installation on Fuchsia is a package. For information on how to push packages to a Fuchsia device, see the this document.
In order to retrieve logs from a device, open a shell on the device and run the log_listener command, which provides various filtering knobs. See this page for more details.
