wsp join

usage: wsp join <url>... --code <code> [--code-file <path>] [--name <name>]
  on the computer you are sitting at: join it to the wsp at that address, then
  install the daemon as a systemd system unit, which dials again at every boot.
  A place is a Linux computer; a Mac refuses

  --state        the state file: this word first, else WSP_HOME's state.json,
                 else ./.wsp/state.json when the current directory is a checkout
                 of wsp, else state.json in the home the running host serves
  --code         the code the other computer printed: wsp add on the host
  --code-file    read the code off this file and delete the file before dialing,
                 so a code never sits on a disk
  --name         the name to call the computer by here; what its address calls
                 it without one