NIXPKG1 http://nix.cs.uu.nl/dist/nix/nixpkgs-0.9/MANIFEST zdelta-2.1 i686-linux /nix/store/xbhg5plf8i8zznjkzh10mflibyklp653-zdelta-2.1.drv /nix/store/avga0fblx20x0frycdfqshfifs3z4dsk-zdelta-2.1