pretty broken

cmd/demo/BUILD.bazel

@@ -18,16 +18,30 @@ go_binary(
 )
 
 platform(
-    name = "darwin/amd64",
+    name = "macos",
     constraint_values = [
-        "@platforms//os:darwin",
-        "@platforms//cpu:amd64",
+        "@platforms//os:osx",
+        "@platforms//cpu:x86_64",
     ],
 )
 
+platform(
+    name = "linux",
+    constraint_values = [
+        "@platforms//os:linux",
+    ],
+)
+
+go_cross_binary(
+    name = "darwin_binary",
+    platform = ":macos",
+    sdk_version = "1.21.0",
+    target = "base",
+)
+
 go_cross_binary(
-    name = "macOS",
-    platform = "@bazel_tools//platforms:osx",
+    name = "linux_binary",
+    platform = ":linux",
     sdk_version = "1.21.0",
     target = "base",
 )