PGF and TikZ

Contributions

Contributes to Pidgin IM (ex-Gaim)

Contributes to matplotlib

Contributes to Linux Kernel

Contributions

Contributes to zsh

Contributes to GNU Libtool

Contributes to GNU gnulib

Contributions

Contributes to Openfire

Contributes to Smack

Contributes to Spark

Contributions

Contributes to LaTeX semantic checker as gvol

Contributes to GNU Emacs

Contributes to Nuxeo Platform

Contributions

Contributes to LaTeX Beamer Class as Joseph Wright

Contributes to LaTeX as Joseph Wright

Contributes to LaTeX3 as Joseph Wright

Contributions

Contributes to IPython as Samuel Lelièvre

Contributes to Coq proof assistant as Samuel Lelièvre

Contributes to Sage: Open Source Mathematics Software as Samuel Lelièvre

Contributions

Contributes to Lunar Linux

Contributes to Xfce Notes plugin

Contributes to Xfburn

Contributions

Contributes to oofem

Contributions

Contributes to aStor as stargrave

Contributes to ETConf

Contributes to OpenSAN

Contributions