anchor.diff:  { stdenv
   , buildGoModule
   , fetchFromGitHub
  -, runCommand
   , gpgme
   , lvm2
   , btrfs-progs
  
positive.code: 
    buildPhase = ''
      patchShebangs .
      make binary-local
    '';
  
    installPhase = ''
      make install-binary PREFIX=$out
      make install-docs MANINSTALLDIR="$man/share/man"
      installShellCompletion --bash completions/bash/skopeo
    '';
  
  
negative.code:       --prefix PATH : ${stdenv.lib.makeBinPath [ fuse-overlayfs ]}
    '';
  
    meta = with stdenv.lib; {
      description = "A command line utility for various operations on container images and image repositories";
      homepage = "https://github.com/containers/skopeo";
  