Modularize flake

.config/nix/modules/home-manager/default.nix

@@ -2,12 +2,12 @@
   home.username = "tobi";
   home.homeDirectory = "/Users/tobi";
   home.stateVersion = "23.05";
-  home.packages = [
-    pkgs.raycast
-    pkgs.ripgrep
-    pkgs.fd
-    pkgs.curl
-    pkgs.less
+  home.packages = with pkgs; [
+    raycast
+    ripgrep
+    fd
+    curl
+    less
   ];
   home.sessionVariables = {
     PAGER = "less";
@@ -17,7 +17,16 @@
   programs.home-manager.enable = true;
   programs.bat.enable = true;
   programs.git.enable = true;
-  programs.zsh.enable = true;
+  programs.zsh = {
+    enable = true;
+    enableCompletion = true;
+    syntaxHighlighting.enable = true;
+    shellAliases = {
+      ls = "ls --color=auto -F";
+      nixswitch = "pushd ~/.config/nix; darwin-rebuild switch --flake .#";
+      nixup = "pushd ~/.config/nix; nix flake update";
+    };
+  };
   programs.starship = {
     enable = true;
     enableZshIntegration = true;
@@ -30,5 +39,4 @@
     settings.font.size = 14;
     settings.font.normal.family = "Iosevka Comfy";
   };
-  programs.kitty.enable = true;
 }