I've worked on some free software projects. Here they are. This is in order from awesome to garbage.
gucu
: Ncurses bindings for Guile
guicu
: Bindings of ICU4c for Guile
(aspell aspell)
: a library that add spell checking functionality to Guile.
(transcoder transcoder)
: a library that converts between string encodings for Guile.
schmolester
: a toy P2P program in scheme.