NIXPKG1 http://nixos.org/releases/nixpkgs/nixpkgs-0.12/MANIFEST less-418 x86_64-linux /nix/store/j3lm2rbb7bv99r89lapm7lqgiphq9i97-less-418.drv /nix/store/1zgrvqnm9x9kspz41wifba7xwp2wq49k-less-418