It seems as though I've managed to add it to the extras-devel repository, just do a apt-get update and apt-get install leif, and you should be good to go. The options menu still doesn't work, so it's currently just in training mode on Europe actually :P And the game is pretty slow aswell..

If it doesn't work, try this as root:
chmod +x /opt/leif/src/main_menu.py