pinwheel: Add enable option to git module

And use it to check when to add work `gitconfig`

hosts/pinwheel/configuration.nix

@@ -126,7 +126,11 @@
   };
 
   config-manager.flakePath = "/home/alex/config";
-  mod.openvpn.enable = true;
+
+  mod = {
+    git.enable = true;
+    openvpn.enable = true;
+  };
 
   # This value determines the NixOS release from which the default
   # settings for stateful data, like file locations and database versions

hosts/pinwheel/modules/git/default.nix

@@ -1,12 +1,23 @@
-{ ... }:
+{ lib, config, ... }:
+let
+  enabled = config.mod.git.enable;
+in
 {
-  home-manager.users.alex = {
+  options = {
-    programs.git = {
+    mod.git = {
-      enable = true;
+      enable = lib.mkEnableOption "enable git module";
+    };
+  };
 
-      includes = [
+  config = lib.mkIf enabled {
-        { path = ./gitconfig; }
+    home-manager.users.alex = {
-      ];
+      programs.git = {
+        enable = true;
+
+        includes = [
+          { path = ./gitconfig; }
+        ];
+      };
     };
   };
 }

hosts/pinwheel/modules/work/default.nix

@@ -1,5 +1,6 @@
 { pkgs, lib, config, ... }:
 let
+  gitEnabled = config.mod.git.enable;
   openvpnEnabled = config.mod.openvpn.enable;
 
   work-vpn = let
@@ -25,7 +26,7 @@ let
 in
 {
   home-manager.users.alex = {
-    programs.git = {
+    programs.git = lib.mkIf gitEnabled {
       includes = [
         {
           path = ./work-gitconfig;