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

{
  brakeman = {
    groups = ["default"];
    platforms = [];
    source = {
      remotes = ["https://rubygems.org"];
      sha256 = "1l2584f7cm7lmwihm1l449rk6vl4wlx3s7x317cm2inapzjhiybg";
      type = "gem";
    };
    version = "6.0.0";
  };
}