Jose A. Ortega Ruiz <jao@gnu.org> designed and implemented Geiser and is its active maintainer. For more boring details about him, see <http://hacks-galore.org/jao>. Contributors: Michael Wilber implemented the initial Racket image support modules. Jonas Rodrigues implemented the initial version of geiser-repl-clear-buffer. Ray Racine implemented geiser-edit-insert-lambda. See also the files THANKS and ChangeLog.