The operating system was going to be called GNU.

Don't open this can of worms. (-: There were endless discussions of this in the 1990s. Years's worth.

Scroll down to the 'What Is the Hurd?' section of this announcement post from 1996 and pay particular attention to its first and last sentences. That's the allusion here.

* https://groups.google.com/g/gnu.announce/c/d0N2mLo5dxk/m/bDq...