anchor.diff:      -X main.Version=v${version}
     '';
   
  +  doInstallCheck = true;
  +
  +  installCheckPhase = ''
  +    $out/bin/aws-vault --version 2>&1 | grep ${version} > /dev/null
  +  '';
  +
     meta = with lib; {
       description =
         "A vault for securely storing and accessing AWS credentials in development environments";
  
positive.code: { buildGoModule, lib, fetchFromGitHub, installShellFiles }:
  buildGoModule rec {
    pname = "aws-vault";
    version = "6.3.1";
  
negative.code: 
    vendorSha256 = "sha256-Lb5iiuT/Fd3RMt98AafIi9I0FHJaSpJ8pH7r4yZiiiw=";
  
    nativeBuildInputs = [ installShellFiles makeWrapper ];
  
    postInstall = ''
      wrapProgram $out/bin/aws-vault --prefix PATH : ${lib.makeBinPath [ xdg-utils ]}
      installShellCompletion --cmd aws-vault \
        --bash $src/contrib/completions/bash/aws-vault.bash \
        --fish $src/contrib/completions/fish/aws-vault.fish \
  