butler: fix darwin build

pkgs/games/itch/butler.nix

···
 { lib
 , buildGoModule
 , fetchFromGitHub
+, stdenv
+, Cocoa
+, fetchpatch
 }:
 
 buildGoModule rec {
···
     sha256 = "sha256-vciSmXR3wI3KcnC+Uz36AgI/WUfztA05MJv1InuOjJM=";
   };
 
+  buildInputs = lib.optionals stdenv.isDarwin [
+    Cocoa
+  ];
+
+  patches = [
+    # update x/sys dependency for darwin build https://github.com/itchio/butler/pull/245
+    (fetchpatch {
+      url = "https://github.com/itchio/butler/pull/245/commits/ef651d373e3061fda9692dd44ae0f7ce215e9655.patch";
+      hash = "sha256-rZZn/OGiv3mRyy89uORyJ99zWN21kZCCQAlFvSKxlPU=";
+    })
+  ];
+
   proxyVendor = true;
 
-  vendorSha256 = "sha256-EIl0ZFDKbZopUR22hp5a2vRUu0O1h1O953NrtoNa2x8=";
+  vendorSha256 = "sha256-CtBwc5mcgLvl2Bvg5gI+ULJMQEEibx1aN3IpmRNUtwE=";
 
   doCheck = false;
 

pkgs/top-level/all-packages.nix

···
 
   asleap = callPackage ../tools/networking/asleap { };
 
-  butler = callPackage ../games/itch/butler.nix { };
+  butler = callPackage ../games/itch/butler.nix {
+    inherit (darwin.apple_sdk.frameworks) Cocoa;
+  };
 
   cf-vault = callPackage ../tools/admin/cf-vault { };