Paul Jarc <prj@dogmap.org>
Gerrit Pape <pape@smarden.org>
Clemens Fischer <ino-waiting@gmx.net>
 - co-designers of fifo-based checkpoints

Stefan Karrman <sk@mathematik.uni-ulm.de>
 - libftrig idea originator

Jean Marot <marot@quatramaran.ens.fr>
 - code debugging

Dan J. Bernstein <djb@cr.yp.to>
 - C/Unix mentor
 
Wayne Marshall <wcm@b0llix.net>
 - perp

David Madore <david@madore.org>
Nicolas George <cigaes@salle-s.org>
 - intellectual challenges, criticism
 
Frans Haarman <franshaarman@gmail.com>
 - help with OpenBSD portability
