Debian Developer since 2012 (and Debian contributor since 2009).
- scientific computing environments: Octave, Julia (until 2015)
- several scientific libraries: BLAS, LAPACK, SuiteSparse, GLPK, several R packages
- misc: Zotero, French hunspell dictionary, GnuCash (2011–2015)
Other contributions: sponsoring, release critical bug fixing
Regular contributor to the Dynare project since 2006
Creator of two Julia packages: