Interestingly both started roughly around the same time (though i only started hearing about Nix in the last few years).

Note though that Gobolinux is largely constructed from shell scripts.

Also, since this comparison was made Gobolinux replace /System/Links with /system/Index. The latter is more like the classic FHS, and came about because of various issues during software compiles (iirc).

Oh, one potentially interesting tidbit about Gobolinux history is that it apparently started out as one guy's way to manage compiles stored in his user directory on a university server. Sadly since the move to /System/Index the tool for bootstrapping such an environment, Rootless, has been nonfunctional.