{
   config,
   pkgs,
   ...
 }: let
   libpng =
     pkgs.libpng.overrideAttrs (_: {meta.outputsToInstall = _.outputs;});
   username = "edwlan";
   homeDirectory = "/Users/${username}";
   dotfileDirectory = "${homeDirectory}/git_repos/dotfiles";
 
   alejandra =
     (import (builtins.fetchTarball {

       url = "https://github.com/kamadorueda/alejandra/tarball/3.0.0";
       sha256 = "18jm0d5xrxk38hw5sa470zgfz9xzdcyaskjhgjwhnmzd5fgacny4";

     }) {inherit pkgs;})
     .outPath;

   # zsh = pkgs.zsh.overrideAttrs ({postInstall}: {postInstall = ''
   #   make install.info install.html
   #   '' + postInstall})
 

   common_home =
     import "${dotfileDirectory}/nix/common.nix" {inherit homeDirectory pkgs;};

 
   zsh =
     pkgs.zsh
     // {
       meta =
         pkgs.zsh.meta
         // {
           outputsToInstall = pkgs.zsh.meta.outputsToInstall ++ ["info" "doc"];
         };
     };

 in {

   home.file.".ssh/allowed_signers".text = "* ${builtins.readFile "${homeDirectory}/.ssh/id_ed25519.pub"}";
 

   nixpkgs.overlays = common_home.overlays;
 
   ## Doesn't work???
   #xdg.configFile."nixpkgs/overlays".source = ./elangley-overlay;
 
   home.packages =
     common_home.packages
     ++ [

       alejandra

       pkgs.cargo

       pkgs.clojure

       (pkgs.emacsGit.override {nativeComp = true;})

       pkgs.graphviz

       pkgs.ispell

       pkgs.libffi.dev

       pkgs.libheif.dev

       libpng

       pkgs.libssh2

       pkgs.mosh

       pkgs.nodejs

       pkgs.openssl
       pkgs.pandoc

       pkgs.pkg-config

       pkgs.shellcheck
       pkgs.zeromq

       pkgs.zsh.doc

       pkgs.zstd
       pkgs.zstd.dev

       zsh

     ];
 
   programs = {

     git = {
       enable = true;
       userEmail = "el-github@elangley.org";
       userName = "Edward Langley";
       extraConfig = {

         commit = {gpgsign = true;};

         github = {user = "fiddlerwoaroof";};

         gpg = {
           format = "ssh";
           allowedSignersFile = "${homeDirectory}/.ssh/allowed_signers";
         };

         init = {defaultBranch = "main";};
         merge = {autoStash = true;};
         pull = {rebase = false;};
         rebase = {autoStash = true;};

         user = {signingkey = "${homeDirectory}/.ssh/id_ed25519.pub";};

       };
     };

     tmux = {
       enable = true;
       terminal = "screen-256color";
       escapeTime = 0;
       clock24 = true;
       newSession = true;
       keyMode = "vi";
       extraConfig = builtins.readFile (dotfileDirectory + "/tmux.conf");
     };
   };
 
   # Home Manager needs a bit of information about you and the
   # paths it should manage.
   home.username = username;
   home.homeDirectory = homeDirectory;
 
   # This value determines the Home Manager release that your
   # configuration is compatible with. This helps avoid breakage
   # when a new Home Manager release introduces backwards
   # incompatible changes.
   #
   # You can update Home Manager without changing this value. See
   # the Home Manager release notes for a list of state version
   # changes in each release.
   home.stateVersion = "22.05";
 
   # Let Home Manager install and manage itself.
   programs.home-manager.enable = true;
 }