Andy Wingo, Geiser’s first user, has been a continuous source of encouragement and suggestions, and keeps improving Guile and heeding my feature requests.
The nice thing about collaborating with Andreas Rottmann over all these years is that he will not only make your project better with insightful comments and prodding: he’ll send you patches galore too.
Ludovic Courtès, #geiser’s citizen no. 1, joined the fun after a while, and has since then been a continuous source of encouragement, ideas and bug reports.
Michael Wilber convinced me that image support for Racket was not only fun, but easy, with the best argument: actual code!
Daniel Hackney and Grant Rettke created the first ELPA packages for Geiser and taught me to fish.
Diogo F. S. Ramos is Geiser’s most indefatigable user and bug reporter, and the mailing list has been a far less lonely place since he came.
Aleix Conchillo has been my favourite spammer, beta tester and patch sender during more years and for more projects than i can remember.
Eduardo Cavazos’ contagious enthusiasm has helped in many ways to keep Geiser alive, and he’s become its best evangelist in R6RS circles.
Eli Barzilay took the time to play with an early alpha and made many valuable suggestions, besides answering all my ’how do you in PLT’ questions.
Matthew Flatt, Robby Findler and the rest of the PLT team did not only answer my inquiries, but provided almost instant fixes to the few issues i found.
Thanks also to the PLT and Guile communities, for showing me that Geiser was not only possible, but a pleasure to hack on. And to the Slime hackers, who led the way.