use nix-darwin and add more packages

configs/main.nix

@@ -1,8 +0,0 @@
-{
-  imports = [
-    ./emacs.nix
-    ./git.nix
-    ./gpg.nix
-    ./zsh.nix
-  ];
-}

darwin-configuration.nix

@@ -0,0 +1,48 @@
+{ config, pkgs, lib, currentSystem, ... }:
+
+let
+  user = builtins.getEnv "USER";
+  unstableTarball = fetchTarball https://github.com/NixOS/nixpkgs/archive/nixos-unstable.tar.gz;
+in
+{
+  imports = [ <home-manager/nix-darwin> ];
+
+  # List of packages to be installed in the system profile.
+  environment.systemPackages = [];
+
+  # $ darwin-rebuild switch -I darwin-config=$HOME/.config/nixpkgs/darwin/configuration.nix
+  environment.darwinConfig = "$HOME/.config/nixpkgs/darwin-configuration.nix";
+
+  # Auto upgrade nix package and the daemon service.
+  services.nix-daemon.enable = true;
+
+  nix = {
+    package = pkgs.nixUnstable;
+    extraOptions = ''
+      experimental-features = nix-command flakes
+    '';
+  };
+
+  nixpkgs.config.packageOverrides = pkgs: {
+    unstable = import unstableTarball {
+      config = config.nixpkgs.config;
+    };
+  };
+  
+  # Create /etc/zshrc that loads the nix-darwin environment.
+  programs.zsh.enable = true;
+
+  # Used for backwards compatibility, please read the changelog before changing.
+  # $ darwin-rebuild changelog
+  system.stateVersion = 4;
+
+  users.users.${user} = {
+    home = "/Users/${user}";
+    name = "${user}";
+  };
+
+  services.emacs.enable = true;
+
+  home-manager.useGlobalPkgs = true;
+  home-manager.users.${user} = import ./home.nix { inherit lib config pkgs currentSystem; };
+}

git.nix

@@ -7,7 +7,7 @@
       enable = true;
     };
     signing = {
-      gpgPath = "/opt/homebrew/bin/gpg";
+#      gpgPath = "${pkgs.gpg.outPath}";
       key = "C3DE5DF6198DACBD";
       signByDefault = true;
     };

home.nix

@@ -1,34 +1,15 @@
-{ config, pkgs, ... }:
+{ pkgs, config, lib, currentSystem, ... }:
 
+let
+  inherit (lib.systems.elaborate { system = builtins.currentSystem; }) isLinux isDarwin;
+in
 {
-  imports = [
-    ./configs/main.nix
-  ];
-  
-  # 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";
-
-  home.username = "willem";
-  home.homeDirectory = "/Users/willem";
-
-  # Let Home Manager install and manage itself.
-  programs.home-manager.enable = true;
-
-  nix = {
-    package = pkgs.nix;
-    settings.experimental-features  = [ "nix-command" ];
-  };
-
-  home.packages = with pkgs; [
-    htop
-    wget
-    texlive.combined.scheme-full
+  home.packages = import ./packages.nix { inherit lib config pkgs isDarwin; };
+  imports = [
+    ./emacs.nix
+    ./git.nix
+    ./gpg.nix
+    ./zsh.nix
   ];
-}
+}  

packages.nix

@@ -0,0 +1,53 @@
+{ config, lib, pkgs, isDarwin, ... }:
+
+let
+  darwinPackages = with pkgs; [
+    coreutils
+    gnused
+    spoof-mac
+    colima
+    pinentry_mac
+  ];
+  dockerPackages = with pkgs; [
+    unstable.docker
+    docker-compose
+  ];
+  editingPackages = with pkgs; [
+    black
+    shellcheck
+    plantuml
+    texlive.combined.scheme-full
+  ];
+  nodePackages = with pkgs.nodePackages; [
+    bash-language-server
+  ];
+  sharedPackages = with pkgs; [
+    zsh-powerlevel10k
+    automake
+    autoconf
+    cmake
+    bash
+    rustup
+    curl
+    pv
+    wget
+    htop
+    tree
+    bat
+    fd
+    ripgrep
+    jq
+    nmap
+    unzip
+    yt-dlp
+    rsync
+    openssh
+    tldr
+    #(import ./python-packages.nix { inherit pkgs; })
+  ];
+in
+sharedPackages
+++ (lib.optionals isDarwin darwinPackages)
+++ editingPackages
+++ nodePackages
+++ dockerPackages

python-packages.nix

@@ -0,0 +1,6 @@
+{ pkgs }:
+
+pkgs.python310.withPackages(p: with p; [
+  matplotlib
+  latexify-py
+])

zsh.nix

@@ -1,4 +1,4 @@
-{ pkgs, ... }:
+{ pkgs, lib, ... }:
 
 {
   programs.zoxide = {