nixpkgs/pkgs/development/tools/analysis/brakeman/gemset.nix

{
  brakeman = {
    groups = ["default"];
    platforms = [];
    source = {
      remotes = ["https://rubygems.org"];
      sha256 = "0y71fqqd0azy5rn78fwiz9px0mql23zrl0ij0dzdkx22l4cscpb0";
      type = "gem";
    };
    version = "5.1.1";
  };
}