add gitMinimal if nix is enabled

machine/not522/installer/default.nix

@@ -36,6 +36,5 @@ in {
       set -eux
       exec ${pkgs.disko}/bin/disko-install --flake "${nixos-config}#not522" --disk main "${nixos-config.nixosConfigurations.not522.config.disko.devices.disk.main.device}"
     '')
-    pkgs.gitMinimal
   ];
 }

modules/nix/lix.nix

@@ -1,10 +1,16 @@
 {
   lix-module,
   inTester,
+  config,
+  pkgs,
   ...
 }: {
   imports =
     if inTester
     then []
     else [lix-module.nixosModules.default];
+
+  environment.systemPackages = mkIf config.nix.enable [
+    pkgs.gitMinimal
+  ];
 }