Guile-OpenGL can be found on the main GNU ftp server: http://ftp.gnu.org/gnu/guile-opengl/ (via HTTP) and ftp://ftp.gnu.org/gnu/guile-opengl/ (via FTP). It can also be found on the GNU mirrors; please use a mirror if possible.
Documentation for Guile-OpenGL is available online, as is documentation for most GNU software. You may also find more information about Guile-OpenGL by running info opengl, info gl, info glx, info glu, or info glut on your system.
Guile-OpenGL uses Guile's mailing lists:
Security reports that should not be made immediately public can be sent directly to the maintainer. If there is no response to an urgent issue, you can escalate to the general security mailing list for advice.
Development of Guile-OpenGL, and GNU in general, is a volunteer effort, and you can contribute. For information, please read How to help GNU. If you'd like to get involved, it's a good idea to join the discussion mailing list (see above).
Guile-OpenGL is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version.
The Free Software Foundation is the principal organizational sponsor of the GNU Operating System. Support GNU and the FSF by buying manuals and gear, joining the FSF as an associate member, or making a donation, either directly to the FSF or via Flattr.