GNU everyhing, just go to gnu.org, and remember that what we refer to as "linux" is mainly the os kernel, most of the user space programs, libs etc. are GNU projects.
I'll get behind the toolchain (GCC, as, gdb, etc) as a game changer, but "everyhing"? Please...other than GNU rewrites of BSD 4.3 userland programs (not hard), most of the projects on gnu.org happened after Linux became ascendant if not dominant. And of the major pre-Linux projects, how many are still indispensable? How about the colossal waste of resources behind GNU Emacs? GNU could have recreated Genera, and done it better, and really changed the world for all that went into it and it did nothing more than create a fetish for a tiny and declining group of people. We don't even need to go to Hurd; it's punchline to a software project joke right there with Duke Nukem.
