diff --git a/.github/workflows/build-macos.yaml b/.github/workflows/build-macos.yaml
new file mode 100644
index 000000000..01d6b551a
--- /dev/null
+++ b/.github/workflows/build-macos.yaml
@@ -0,0 +1,17 @@
+name: Gfxstream macOS Build
+
+on:
+  pull_request:
+  push:
+    branches-ignore:
+      - main
+
+jobs:
+  build-macos:
+    runs-on: macos-latest
+    steps:
+      - uses: actions/checkout@v4
+      - run: brew install meson ninja molten-vk vulkan-loader
+      - run: |
+          meson setup -Ddefault_library=static -Dgfxstream-build=host build
+          meson compile -C build
diff --git a/common/base/SharedMemory_posix.cpp b/common/base/SharedMemory_posix.cpp
index 638751a07..efd971c4a 100644
--- a/common/base/SharedMemory_posix.cpp
+++ b/common/base/SharedMemory_posix.cpp
@@ -55,7 +55,10 @@ SharedMemory::SharedMemory(const std::string& name, size_t size) {
         mName = PathUtils::recompose(PathUtils::decompose(std::move(path)));
     } else {
         mShareType = ShareType::SHARED_MEMORY;
-        mName = name;
+        // POSIX.1-2017 (System Interfaces) requires shm_open() names to begin
+        // with a '/' character to avoid implementation-defined behavior.
+        // Normalize unconditionally so callers don't need to care about it.
+        mName = (!name.empty() && name[0] != '/') ? ("/" + name) : name;
     }
 }
 
@@ -111,7 +114,9 @@ int SharedMemory::openInternal(int oflag, int mode, bool doMapping) {
     int err = 0;
     struct stat sb;
     if (mShareType == ShareType::SHARED_MEMORY) {
-#if defined(HAVE_MEMFD_CREATE)
+#if defined(__APPLE__)
+        mFd = ::shm_open(mName.c_str(), oflag, mode);
+#elif defined(HAVE_MEMFD_CREATE)
         mFd = memfd_create(mName.c_str(), MFD_CLOEXEC | MFD_ALLOW_SEALING);
 #else
         mFd = syscall(__NR_memfd_create, mName.c_str(), FD_CLOEXEC);
diff --git a/host/virtio_gpu_gfxstream_renderer.cpp b/host/virtio_gpu_gfxstream_renderer.cpp
index b6dac07bf..3c587865f 100644
--- a/host/virtio_gpu_gfxstream_renderer.cpp
+++ b/host/virtio_gpu_gfxstream_renderer.cpp
@@ -450,8 +450,7 @@ VG_EXPORT int stream_renderer_create_blob(uint32_t ctx_id, uint32_t res_handle,
     GFXSTREAM_TRACE_EVENT(GFXSTREAM_TRACE_STREAM_RENDERER_CATEGORY,
                           "stream_renderer_create_blob()");
 
-    sFrontend()->createBlob(ctx_id, res_handle, create_blob, handle);
-    return 0;
+    return sFrontend()->createBlob(ctx_id, res_handle, create_blob, handle);
 }
 
 VG_EXPORT int stream_renderer_export_blob(uint32_t res_handle,