I have contributed to a number of Internet software projects.

Majordomo mailing list manager: I wrote the "get" and "index" commands, and the "archive.pl" and "autobounce.pl" programs (1994). They are now community-supported (in other words, I've forgotten everything so I can't help much on them anymore...)

Ghostscript: I wrote the Imagen imPress laser printer driver (1992).