diff --git a/src/vk/Commands.cs b/src/vk/Commands.cs
index 7583757..e98f30d 100644
--- a/src/vk/Commands.cs
+++ b/src/vk/Commands.cs
@@ -47,7 +47,9 @@ private static string GetVulkanName()
 #endif
             else if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
             {
-                return "libvulkan.dylib";
+                // libvulkan.dylib is an additional translation layer from Vulkan SDK.
+                // libMoltenVK supports libvulkan functions already.
+                return "libMoltenVK.dylib";
             }
             else
             {
@@ -160,6 +162,18 @@ protected override IntPtr LoadLibrary(string libraryName)
                         string localPath = Path.Combine(baseDir, libraryName);
                         handle = Libdl.dlopen(localPath, Libdl.RTLD_NOW);
                     }
+
+                    if (handle == IntPtr.Zero && RuntimeInformation.IsOSPlatform(OSPlatform.OSX)) {
+                        // Try to load system-wide MoltenVK from /usr/local/lib or /opt/homebrew/lib.
+                        // It is not possible to install MoltenVK under /usr/lib on macOS due to System Integrity Protection.
+                        string localPath = Path.Combine("/opt/homebrew/lib", libraryName);
+                        handle = Libdl.dlopen(localPath, Libdl.RTLD_NOW);
+
+                        if (handle == IntPtr.Zero) {
+                            localPath = Path.Combine("/usr/local/lib", libraryName);
+                            handle = Libdl.dlopen(localPath, Libdl.RTLD_NOW);
+                        }
+                    }
                 }
 
                 return handle;
diff --git a/src/vk/Enums.cs b/src/vk/Enums.cs
new file mode 100644
index 0000000..26ce96a
--- /dev/null
+++ b/src/vk/Enums.cs
@@ -0,0 +1,16 @@
+namespace Vulkan
+{
+    public enum VkInstanceCreateFlagBits: uint {
+        /// <summary>
+        /// Provided by VK_KHR_portability_enumeration. Specifies that the instance will enumerate
+        /// available Vulkan Portability-compliant physical devices and groups in addition to the
+        /// Vulkan physical devices and groups that are enumerated by default.
+        /// </summary>
+        PortabilityBitKHR = 1,
+    };
+
+    public static partial class RawConstants
+    {
+        public const VkInstanceCreateFlagBits VK_INSTANCE_CREATE_ENUMERATE_PORTABILITY_BIT_KHR = VkInstanceCreateFlagBits.PortabilityBitKHR;
+    };
+}