Basic example of installing a binary through nix home manager

home.nix

{ config, lib, pkgs, options, ... }:

let
  carthage = pkgs.stdenv.mkDerivation rec {
    pname = "carthage";
    version = "0.38.0";
    src = pkgs.fetchurl {
      url = "https://github.com/Carthage/Carthage/releases/download/${version}/Carthage.pkg";
      sha256 = "1d5s160vbd3c3fvx93zq7aw0qgp1l95ri3ayskjg7cc8c2qk1s0f";
    };

    # if on a mac
    dontStrip = true;

    unpackCmd = ''
      mkdir -p out
      cp "$curSrc" out/
    '';

    installPhase = ''
      mkdir -p $out/bin

      /usr/sbin/pkgutil --expand-full "$src" out
      cp out/*.pkg/Payload/usr/local/bin/carthage $out/bin/
      chmod +x $out/bin/carthage
    '';
  };
in {
  home.packages = [
    carthage
  ];
}