Start here. Each section is short on purpose.
During a session open the Files panel, then drag files into either pane. Transfers use the same encrypted channel as the screen stream.
RemoteDesk-Setup.exe /S # silent install
RemoteDesk.exe --id 712314590 # connect on launch
RemoteDesk.exe --server wss://... # override server URL
Full server setup, ports and TLS notes live on the Self-Hosted page.