Reduce locales and disable docs on small systems

modules/default.nix

@@ -58,7 +58,8 @@ in
     ./wireguard
   ];
 
-  config = {
+  config = lib.mkMerge [
+    {
       # Essential system tools
       environment.systemPackages = with pkgs; [
         git
@@ -139,5 +140,15 @@ in
         acceptTerms = true;
         email = "security@sbruder.de";
       };
-  };
+    }
+    (lib.mkIf (!config.sbruder.full) {
+      # Adapted from nixpkgs/nixos/modules/profiles/minimal.nix
+      i18n.supportedLocales = map
+        (locale: locale + "/UTF-8")
+        ((lib.singleton config.i18n.defaultLocale)
+          ++ (lib.attrValues config.i18n.extraLocaleSettings));
+
+      documentation.enable = lib.mkDefault false;
+    })
+  ];
 }