Contributes to Git as Jonathan "Duke" Leto
Contributes to Cardinal - Ruby compiler for Parrot as Jonathan "Duke" Leto
Contributes to Pugs as leto
and 33 other projectsContributes to Rakudo – Raku (formally Perl 6) on MoarVM, JVM, and JS as Tadeusz Sośnierz
Contributes to GTKabber as Tadeusz Sośnierz