Additional information about Guaranį can be obtained in the Home Page of Guaranį, at the URL http://www.dcc.unicamp.br/ ~oliva/guarana/. The source code of its implementation atop of the Kaffe OpenVM, on-line documentation and full papers are available for download. Guaranį is Free Software, released under the GNU General Public License, but its specifications are open, so non-free clean-room implementations are possible.