diff --git a/flake.nix b/flake.nix
index d7dd9b9..3e5581f 100644
--- a/flake.nix
+++ b/flake.nix
@@ -31,19 +31,17 @@
           pkgs.darwin.apple_sdk.frameworks.Foundation
           pkgs.darwin.apple_sdk.frameworks.Security
         ];
+
+        mkPkgArgs = { inherit self src; doCheck = false; };
       in
       rec {
-        packages.default = crystal.mkPkg {
-          inherit self src;
-          doCheck = false;
-        };
+        packages = {
+          default = crystal.mkPkg mkPkgArgs;
 
-        packages.static = crystalStatic.mkPkg {
-          inherit src self;
-          doCheck = false;
-        };
+          ${if system == "x86_64-darwin" then null else "static"} = crystalStatic.mkPkg mkPkgArgs;
 
-        packages.check = pkgs.linkFarmFromDrvs "cb-all-checks" (builtins.attrValues checks);
+          check = pkgs.linkFarmFromDrvs "cb-all-checks" (builtins.attrValues checks);
+        };
 
         devShells.default = pkgs.mkShell {
           buildInputs = with crunchy; [ crystal2nix ameba ]