diff --git a/.github/ISSUE_TEMPLATE/01-launch-failure.yml b/.github/ISSUE_TEMPLATE/01-launch-failure.yml
index ef4cae0..95f980c 100644
--- a/.github/ISSUE_TEMPLATE/01-launch-failure.yml
+++ b/.github/ISSUE_TEMPLATE/01-launch-failure.yml
@@ -25,7 +25,8 @@ body:
       options:
         - Windows 10/11 x86_64
         - Linux x86_64
-        - macOS (unsupported)
+        - macOS arm64
+        - macOS x86_64
         - Other
     validations:
       required: true
diff --git a/.github/ISSUE_TEMPLATE/02-site-or-action-bug.yml b/.github/ISSUE_TEMPLATE/02-site-or-action-bug.yml
index 9061150..72086b1 100644
--- a/.github/ISSUE_TEMPLATE/02-site-or-action-bug.yml
+++ b/.github/ISSUE_TEMPLATE/02-site-or-action-bug.yml
@@ -26,7 +26,8 @@ body:
       options:
         - Windows 10/11 x86_64
         - Linux x86_64
-        - macOS (unsupported)
+        - macOS arm64
+        - macOS x86_64
         - Other
     validations:
       required: true
@@ -43,7 +44,7 @@ body:
     id: headless
     attributes:
       label: headless=
-      description: Some bugs only repro on Windows headless=True (hidden alt-desktop path).
+      description: Some bugs only repro with headless=True (hidden-window path on Windows/macOS, Xvfb on Linux).
       options:
         - "True"
         - "False"
diff --git a/.github/ISSUE_TEMPLATE/03-stealth-detection.yml b/.github/ISSUE_TEMPLATE/03-stealth-detection.yml
index 4772a21..d77ecb2 100644
--- a/.github/ISSUE_TEMPLATE/03-stealth-detection.yml
+++ b/.github/ISSUE_TEMPLATE/03-stealth-detection.yml
@@ -35,7 +35,8 @@ body:
       options:
         - Windows 10/11 x86_64
         - Linux x86_64
-        - macOS (unsupported)
+        - macOS arm64
+        - macOS x86_64
         - Other
     validations:
       required: true
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index de0c00c..f98e3aa 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -14,7 +14,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, windows-latest]
+        os: [ubuntu-latest, windows-latest, macos-15, macos-15-intel]
         python: ["3.11", "3.12"]
 
     steps:
diff --git a/tests/test_download.py b/tests/test_download.py
index 9b1af33..297f179 100644
--- a/tests/test_download.py
+++ b/tests/test_download.py
@@ -315,6 +315,8 @@ def test_ensure_binary_accepts_binary_mode_checksums(tmp_path, monkeypatch):
 
     # Force the platform branch the test mocks:
     monkeypatch.setattr("sys.platform", "win32")
+    import platform
+    monkeypatch.setattr(platform, "machine", lambda: "AMD64")
     out = ensure_binary()
     # No RuntimeError means the parser accepted the `*`-prefixed key.
     assert out.exists()