I'm a retired developer of Sawfish, and was one of Sawfish wiki admins.
Ask questions in the mailing list, if any.
I'm also the author of at-home-modifier fork of xf86-input-evdev.
It enables you for example "space-shift dual role key"; if you press the space alone, it's a space. But if you press it with other keys, it's a shift.
Who am I Edit
Joined sawfish.wikia in June, 2008. I'm a Japanese. My nick, Teika kazura (テイカカズラ or 定家葛 in Japanese, Trachelospermum asiaticum) is the name of a climbing plant. No reason. I just picked it out.