FOMUS is available in tarball form here. Download the latest version and type something similar to the following at a UNIX prompt:

cd path_to_install_directory
tar -zxf path_to_tarball/fomus-0.2.0.tgz
      

The current version is also available via Subversion, hosted at Common-Lisp.net. Type the following command at a UNIX prompt to download the latest version (you must have Subversion installed on your machine):

mkdir fomus
svn checkout svn://common-lisp.net/project/fomus/svn/fomus/tags/current fomus
      

The development/unstable version can be downloaded as follows:

mkdir fomus
svn checkout svn://common-lisp.net/project/fomus/svn/fomus/trunk fomus
      

Future updates will then only require typing svn update in the FOMUS directory.