@uref{http://git.savannah.gnu.org/gitweb/?p=lilypond.git}
@end example
+@item @strong{environment variables}:
+many maintenance scripts, and many instructions in this guide rely on
+predefined @ref{Environment variables}.
+
@item @strong{mailing lists}:
-given on @rweb{Contacts}.
+given on @rweb{Contact}.
@item @strong{branches}: