NIXPKG1 http://nixos.org/releases/nixpkgs/nixpkgs-0.12/MANIFEST alsa-utils-1.0.16 x86_64-linux /nix/store/apm0nz572sg0mp3x1cr6k9fk512d9rc5-alsa-utils-1.0.16.drv /nix/store/58bdjwmkxx4y5wy2l41i02mkd87mniiz-alsa-utils-1.0.16