NIXPKG1 http://nixos.org/releases/nixpkgs/nixpkgs-0.12/MANIFEST xset-1.0.3 x86_64-linux /nix/store/by9kxyjvkl7cc0wz7cbb0yaqpashm50h-xset-1.0.3.drv /nix/store/a29rmg20nvcas9yxfhlkpgb06zgphnzd-xset-1.0.3