diff --git a/flake.nix b/flake.nix
index 0a9b86f..2796168 100644
--- a/flake.nix
+++ b/flake.nix
@@ -96,6 +96,7 @@
               package-contents = pkgs.callPackage ./nix/checks/openclaw-package-contents.nix {
                 openclawGateway = packageSetStable.openclaw-gateway;
               };
+              default-instance = pkgs.callPackage ./nix/checks/openclaw-default-instance.nix { };
               config-validity = pkgs.callPackage ./nix/checks/openclaw-config-validity.nix {
                 openclawGateway = packageSetStable.openclaw-gateway;
               };
@@ -120,7 +121,6 @@
                 {
                   config-options = sourceChecks;
                   source-checks = sourceChecks;
-                  default-instance = pkgs.callPackage ./nix/checks/openclaw-default-instance.nix { };
                   hm-activation = import ./nix/checks/openclaw-hm-activation.nix {
                     inherit pkgs home-manager;
                   };
diff --git a/nix/checks/openclaw-default-instance.nix b/nix/checks/openclaw-default-instance.nix
index ad62a83..5b08f06 100644
--- a/nix/checks/openclaw-default-instance.nix
+++ b/nix/checks/openclaw-default-instance.nix
@@ -103,8 +103,8 @@ let
               lib.file.mkOutOfStoreSymlink = path: path;
               programs.openclaw = {
                 enable = true;
-                launchd.enable = false;
-                systemd.enable = true;
+                launchd.enable = pkgs.stdenv.hostPlatform.isDarwin;
+                systemd.enable = pkgs.stdenv.hostPlatform.isLinux;
               }
               // openclawConfig;
             };
@@ -135,10 +135,13 @@ let
 
   defaultEval = moduleEval { };
   defaultConfig = builtins.fromJSON defaultEval.config.home.file.".openclaw/openclaw.json".text;
-  hasUnit = builtins.hasAttr "openclaw-gateway" defaultEval.config.systemd.user.services;
+  hasLinuxUnit = builtins.hasAttr "openclaw-gateway" defaultEval.config.systemd.user.services;
+  hasDarwinAgent = builtins.hasAttr "com.steipete.openclaw.gateway" defaultEval.config.launchd.agents;
   defaultCheck = builtins.deepSeq (requireNoAssertionFailures "default instance" defaultEval) (
-    if !hasUnit then
+    if pkgs.stdenv.hostPlatform.isLinux && !hasLinuxUnit then
       throw "Default OpenClaw instance missing systemd.unitName."
+    else if pkgs.stdenv.hostPlatform.isDarwin && !hasDarwinAgent then
+      throw "Default OpenClaw instance missing launchd.label."
     else if (((defaultConfig.gateway or { }).mode or null) != "local") then
       throw "Default OpenClaw instance missing gateway.mode."
     else