Ressurecting hotwire shell!
It is recommended to install packages for your operating system:
... wiki link ...
But if you want to run from source, just run this command:
python ui/hotwire
You can easily create a launcher from your desktop panel to run Hotwire straight from the source.
If you insist on installing to the OS system, you can do it thus:
sudo setup.py install
sudo gtk-update-icon-cache -f /usr/share/icons/hicolor
In the future the second step will be integrated into the setup.py process.