
Because it improves out-of-the-box user experience a lot (IMHO). (zsh completion is already on by default.) Remove "programs.bash.enableCompletion = true" from nixos-generate-config.pl, which feels superflous now.
*** NixOS *** NixOS is a Linux distribution based on the purely functional package management system Nix. More information can be found at http://nixos.org/nixos and in the manual in doc/manual.