Hi, basically hotwire-ssh is a separate (but related) project now. My
short/medium term plan is to get it into GNOME by default. Hotwire
Shell is going to be a running prototype/experiment for the near
future.
So you'll need to install it separately. It should work to just
unpack it and add /path/to/hotwire-ssh/bin to your PATH; but the ideal
would be for it to see it shipped by GNOME/distributions. I need to
get some time to work on making that happen.