Warren writes: Although I wasn't involved in the development of Unix, I've had a fascination for Unix for a long time. I set up the Unix Heritage Society and its mailing list, curate the Unix Archive and have contributed to this wiki. I've also done a lot of work restoring old artifacts such as the 'nsys' kernel, the early C compilers and the 1972 Unix kernel.

As to what inspired all of this, it was a PDP-11 that I couldn't use.