lens: add aarch64-darwin support

pkgs/applications/networking/cluster/lens/darwin.nix

@@ -0,0 +1,29 @@
+{ lib, stdenv, undmg, fetchurl }:
+
+stdenv.mkDerivation rec {
+  pname = "lens";
+  version = "2022.12";
+  build = "${version}.11410-latest";
+  appName = "Lens";
+
+  sourceRoot = "${appName}.app";
+
+  src = fetchurl {
+    url = "https://api.k8slens.dev/binaries/Lens-${build}-arm64.dmg";
+    sha256 = "sha256-PKWJ2CZ/wacbJnrCZdYwYJzbFVhjIGAw60UGhdw11Mc=";
+  };
+
+  buildInputs = [ undmg ];
+  installPhase = ''
+    mkdir -p "$out/Applications/${appName}.app"
+    cp -R . "$out/Applications/${appName}.app"
+  '';
+
+  meta = with lib; {
+    description = "The Kubernetes IDE";
+    homepage = "https://k8slens.dev/";
+    license = licenses.mit;
+    maintainers = with maintainers; [ dbirks ];
+    platforms = [ "aarch64-darwin" ];
+  };
+}

pkgs/applications/networking/cluster/lens/default.nix

@@ -0,0 +1,6 @@
+{ stdenv, callPackage }:
+
+if stdenv.isDarwin then
+  callPackage ./darwin.nix { }
+else
+  callPackage ./linux.nix { }