Sorry. This is not an 'apt' repository. You need to get the packages by hand. The reason is because we want people to use the Official packages from their own distributions mirrors (i.e.: http://packages.debian.org/splashy)
http://splashy.alioth.debian.org/ubuntu/
git clone git://git.debian.org/git/splashy/splashy.git splashy git clone git://git.debian.org/git/splashy/debian/splashy.git splashy-debian cp -r splashy /usr/src/splashy cp -r splashy-debian/debian /usr/src/splashy/debian cd /usr/src/splashy debuild -uc -us