diff --git a/Assets/MediaPipe/Examples/Scripts/DemoGraph.cs b/Assets/MediaPipe/Examples/Scripts/DemoGraph.cs
index 33421fbea..96500d4df 100644
--- a/Assets/MediaPipe/Examples/Scripts/DemoGraph.cs
+++ b/Assets/MediaPipe/Examples/Scripts/DemoGraph.cs
@@ -60,7 +60,7 @@ public virtual Status StartRun(Texture texture) {
   public Status PushInput(TextureFrame textureFrame) {
     var timestamp = GetCurrentTimestamp();
 
-#if !UNITY_ANDROID
+#if UNITY_EDITOR || !UNITY_ANDROID
     var imageFrame = new ImageFrame(
       ImageFormat.Format.SRGBA, textureFrame.width, textureFrame.height, 4 * textureFrame.width, textureFrame.GetRawNativeByteArray());
     textureFrame.Release();
diff --git a/Assets/MediaPipe/Examples/Scripts/SceneDirector.cs b/Assets/MediaPipe/Examples/Scripts/SceneDirector.cs
index f9e38a2a9..6b7d6eedc 100644
--- a/Assets/MediaPipe/Examples/Scripts/SceneDirector.cs
+++ b/Assets/MediaPipe/Examples/Scripts/SceneDirector.cs
@@ -28,11 +28,11 @@ public class SceneDirector : MonoBehaviour {
   bool IsAssetLoadFailed = false;
 
   void OnEnable() {
-    // Uncomment for debugging
-    // System.Environment.SetEnvironmentVariable("GLOG_v", "2");
+    // for debugging
+    System.Environment.SetEnvironmentVariable("GLOG_v", "2");
   }
 
-#if UNITY_ANDROID
+#if (UNITY_STANDALONE_LINUX || UNITY_ANDROID) && !UNITY_EDITOR_OSX && !UNITY_EDITOR_WIN
   [AOT.MonoPInvokeCallback(typeof(PluginCallback))]
   static void GetCurrentContext(int eventId) {
     currentContext = Egl.getCurrentContext();
@@ -42,7 +42,7 @@ static void GetCurrentContext(int eventId) {
   async void Start() {
     webCamScreen = GameObject.Find("WebCamScreen");
 
-#if UNITY_ANDROID
+#if UNITY_ANDROID && !UNITY_EDITOR_OSX && !UNITY_EDITOR_WIN
     if (useGPU) {
       PluginCallback callback = GetCurrentContext;
 
diff --git a/Assets/MediaPipe/Examples/Scripts/WebCamScreenController.cs b/Assets/MediaPipe/Examples/Scripts/WebCamScreenController.cs
index 53731a61f..f206b0575 100644
--- a/Assets/MediaPipe/Examples/Scripts/WebCamScreenController.cs
+++ b/Assets/MediaPipe/Examples/Scripts/WebCamScreenController.cs
@@ -116,7 +116,7 @@ public void DrawScreen(ImageFrame imageFrame) {
   public void DrawScreen(GpuBuffer gpuBuffer) {
     if (!isWebCamReady) { return; }
 
-#if UNITY_STANDALONE_LINUX || UNITY_STANDALONE_OSX || UNITY_ANDROID
+#if (UNITY_STANDALONE_LINUX || UNITY_ANDROID) && !UNITY_EDITOR_OSX && !UNITY_EDITOR_WIN
     // TODO: create an external texture
     outputTexture.UpdateExternalTexture((IntPtr)gpuBuffer.GetGlTextureBuffer().Name());
 #else
diff --git a/Assets/MediaPipe/SDK/Scripts/Framework/Packet/EglSurfaceHolderPacket.cs b/Assets/MediaPipe/SDK/Scripts/Framework/Packet/EglSurfaceHolderPacket.cs
index 9da57bb57..f5f0b7683 100644
--- a/Assets/MediaPipe/SDK/Scripts/Framework/Packet/EglSurfaceHolderPacket.cs
+++ b/Assets/MediaPipe/SDK/Scripts/Framework/Packet/EglSurfaceHolderPacket.cs
@@ -1,6 +1,7 @@
+#if UNITY_STANDALONE_LINUX || UNITY_ANDROID
 using System;
 
-#if UNITY_STANDALONE_LINUX || UNITY_ANDROID
+// defined on Linux, but usefull only with OpenGL ES
 namespace Mediapipe {
   public class EglSurfaceHolderPacket : Packet<EglSurfaceHolder> {
     public EglSurfaceHolderPacket() : base() {}
@@ -32,4 +33,4 @@ public override Status ValidateAsType() {
     }
   }
 }
-#endif
\ No newline at end of file
+#endif
diff --git a/Assets/MediaPipe/SDK/Scripts/Gpu/EglSurfaceHolder.cs b/Assets/MediaPipe/SDK/Scripts/Gpu/EglSurfaceHolder.cs
index ed913ea0c..d93e0b66b 100644
--- a/Assets/MediaPipe/SDK/Scripts/Gpu/EglSurfaceHolder.cs
+++ b/Assets/MediaPipe/SDK/Scripts/Gpu/EglSurfaceHolder.cs
@@ -1,6 +1,7 @@
 using System;
 
-#if UNITY_STANDALONE_LINUX || UNITY_ANDROID // defined on Linux, but usefull only with OpenGL ES
+#if UNITY_STANDALONE_LINUX || UNITY_ANDROID
+// defined on Linux, but usefull only with OpenGL ES
 namespace Mediapipe {
   public class EglSurfaceHolder : MpResourceHandle {
     private UniquePtrHandle uniquePtrHandle;
diff --git a/Assets/MediaPipe/SDK/Scripts/Gpu/GlContext.cs b/Assets/MediaPipe/SDK/Scripts/Gpu/GlContext.cs
index 7017f1ff7..ac30e70aa 100644
--- a/Assets/MediaPipe/SDK/Scripts/Gpu/GlContext.cs
+++ b/Assets/MediaPipe/SDK/Scripts/Gpu/GlContext.cs
@@ -31,7 +31,7 @@ public IntPtr sharedPtr {
       get { return sharedPtrHandle == null ? IntPtr.Zero : sharedPtrHandle.mpPtr; }
     }
 
-#if UNITY_STANDALONE_LINUX || UNITY_ANDROID
+#if UNITY_EDITOR_LINUX || UNITY_STANDALONE_LINUX || UNITY_ANDROID
     public IntPtr eglDisplay {
       get { return SafeNativeMethods.mp_GlContext__egl_display(mpPtr); }
     }
@@ -43,7 +43,10 @@ public IntPtr eglConfig {
     public IntPtr eglContext {
       get { return SafeNativeMethods.mp_GlContext__egl_context(mpPtr); }
     }
-#elif UNITY_STANDALONE_OSX
+#endif
+
+#if UNITY_STANDALONE_OSX
+    // NOTE: On macOS, native libs cannot be built with GPU enabled, so it cannot be used actually.
     public IntPtr nsglContext {
       get { return SafeNativeMethods.mp_GlContext__nsgl_context(mpPtr); }
     }
diff --git a/Assets/MediaPipe/SDK/Scripts/Gpu/GpuBuffer.cs b/Assets/MediaPipe/SDK/Scripts/Gpu/GpuBuffer.cs
index 1361816ac..d9c319140 100644
--- a/Assets/MediaPipe/SDK/Scripts/Gpu/GpuBuffer.cs
+++ b/Assets/MediaPipe/SDK/Scripts/Gpu/GpuBuffer.cs
@@ -4,7 +4,7 @@ namespace Mediapipe {
   public class GpuBuffer : MpResourceHandle {
     public GpuBuffer(IntPtr ptr, bool isOwner = true) : base(ptr, isOwner) {}
 
-#if UNITY_STANDALONE_LINUX || UNITY_STANDALONE_OSX || UNITY_ANDROID
+#if UNITY_EDITOR_LINUX || UNITY_STANDALONE_LINUX || UNITY_ANDROID
     public GpuBuffer(GlTextureBuffer glTextureBuffer) : base() {
       UnsafeNativeMethods.mp_GpuBuffer__PSgtb(glTextureBuffer.sharedPtr, out var ptr).Assert();
       glTextureBuffer.Dispose(); // respect move semantics
@@ -16,7 +16,7 @@ protected override void DeleteMpPtr() {
       UnsafeNativeMethods.mp_GpuBuffer__delete(ptr);
     }
 
-#if UNITY_STANDALONE_LINUX || UNITY_STANDALONE_OSX || UNITY_ANDROID
+#if UNITY_EDITOR_LINUX || UNITY_STANDALONE_LINUX || UNITY_ANDROID
     public GlTextureBuffer GetGlTextureBuffer() {
       return new GlTextureBuffer(SafeNativeMethods.mp_GpuBuffer__GetGlTextureBufferSharedPtr(mpPtr), false);
     }
diff --git a/Assets/MediaPipe/SDK/Scripts/PInvoke/NativeMethods/Gpu/GlContext_Safe.cs b/Assets/MediaPipe/SDK/Scripts/PInvoke/NativeMethods/Gpu/GlContext_Safe.cs
index d58cfe69c..3da4ce15a 100644
--- a/Assets/MediaPipe/SDK/Scripts/PInvoke/NativeMethods/Gpu/GlContext_Safe.cs
+++ b/Assets/MediaPipe/SDK/Scripts/PInvoke/NativeMethods/Gpu/GlContext_Safe.cs
@@ -8,7 +8,7 @@ internal static partial class SafeNativeMethods {
     [Pure, DllImport (MediaPipeLibrary, ExactSpelling = true)]
     public static extern IntPtr mp_SharedGlContext__get(IntPtr sharedGlContext);
 
-#if UNITY_STANDALONE_LINUX || UNITY_ANDROID
+#if UNITY_EDITOR_LINUX || UNITY_STANDALONE_LINUX || UNITY_ANDROID
     [Pure, DllImport (MediaPipeLibrary, ExactSpelling = true)]
     public static extern IntPtr mp_GlContext__egl_display(IntPtr GlContext);
 
@@ -17,7 +17,9 @@ internal static partial class SafeNativeMethods {
 
     [Pure, DllImport (MediaPipeLibrary, ExactSpelling = true)]
     public static extern IntPtr mp_GlContext__egl_context(IntPtr GlContext);
-#elif UNITY_IOS
+#endif
+
+#if UNITY_IOS
     [Pure, DllImport (MediaPipeLibrary, ExactSpelling = true)]
     public static extern IntPtr mp_GlContext__eagl_context(IntPtr GlContext);
 #elif UNITY_STANDALONE_OSX
diff --git a/Assets/MediaPipe/SDK/Scripts/PInvoke/NativeMethods/Gpu/GpuBuffer_Safe.cs b/Assets/MediaPipe/SDK/Scripts/PInvoke/NativeMethods/Gpu/GpuBuffer_Safe.cs
index 65d91ef74..7beaccb79 100644
--- a/Assets/MediaPipe/SDK/Scripts/PInvoke/NativeMethods/Gpu/GpuBuffer_Safe.cs
+++ b/Assets/MediaPipe/SDK/Scripts/PInvoke/NativeMethods/Gpu/GpuBuffer_Safe.cs
@@ -4,7 +4,7 @@
 
 namespace Mediapipe {
   internal static partial class SafeNativeMethods {
-#if UNITY_STANDALONE_LINUX || UNITY_STANDALONE_OSX || UNITY_ANDROID
+#if UNITY_EDITOR_LINUX || UNITY_STANDALONE_LINUX || UNITY_ANDROID
     [Pure, DllImport (MediaPipeLibrary, ExactSpelling = true)]
     public static extern IntPtr mp_GpuBuffer__GetGlTextureBufferSharedPtr(IntPtr gpuBuffer);
 #endif
diff --git a/Assets/MediaPipe/SDK/Scripts/PInvoke/NativeMethods/Gpu/GpuBuffer_Unsafe.cs b/Assets/MediaPipe/SDK/Scripts/PInvoke/NativeMethods/Gpu/GpuBuffer_Unsafe.cs
index 298392082..6a8f5620f 100644
--- a/Assets/MediaPipe/SDK/Scripts/PInvoke/NativeMethods/Gpu/GpuBuffer_Unsafe.cs
+++ b/Assets/MediaPipe/SDK/Scripts/PInvoke/NativeMethods/Gpu/GpuBuffer_Unsafe.cs
@@ -3,7 +3,7 @@
 
 namespace Mediapipe {
   internal static partial class UnsafeNativeMethods {
-#if UNITY_STANDALONE_LINUX || UNITY_STANDALONE_OSX || UNITY_ANDROID
+#if UNITY_EDITOR_LINUX || UNITY_STANDALONE_LINUX || UNITY_ANDROID
     [DllImport (MediaPipeLibrary, ExactSpelling = true)]
     public static extern MpReturnCode mp_GpuBuffer__PSgtb(IntPtr glTextureBuffer, out IntPtr gpuBuffer);
 #endif
diff --git a/Assets/MediaPipe/SDK/Tests/EditMode/Gpu/GlCalculatorHelperTest.cs b/Assets/MediaPipe/SDK/Tests/EditMode/Gpu/GlCalculatorHelperTest.cs
index 426223ed4..e3042e0f7 100644
--- a/Assets/MediaPipe/SDK/Tests/EditMode/Gpu/GlCalculatorHelperTest.cs
+++ b/Assets/MediaPipe/SDK/Tests/EditMode/Gpu/GlCalculatorHelperTest.cs
@@ -143,7 +143,7 @@ public void GetGlContext_ShouldReturnCurrentContext() {
       glCalculatorHelper.InitializeForTest(GpuResources.Create().ConsumeValueOrDie());
 
       var glContext = glCalculatorHelper.GetGlContext();
-#if UNITY_STANDALONE_LINUX || UNITY_ANDROID
+#if UNITY_EDITOR_LINUX || UNITY_STANDALONE_LINUX || UNITY_ANDROID
       Assert.AreNotEqual(glContext.eglContext, IntPtr.Zero);
 #elif UNITY_STANDALONE_OSX
       Assert.AreNotEqual(glContext.nsglContext, IntPtr.Zero);
diff --git a/Assets/MediaPipe/SDK/Tests/EditMode/Gpu/GlContextTest.cs b/Assets/MediaPipe/SDK/Tests/EditMode/Gpu/GlContextTest.cs
index f4bdab91e..f5e1bd0b3 100644
--- a/Assets/MediaPipe/SDK/Tests/EditMode/Gpu/GlContextTest.cs
+++ b/Assets/MediaPipe/SDK/Tests/EditMode/Gpu/GlContextTest.cs
@@ -40,7 +40,7 @@ public void IsCurrent_ShouldReturnFalse_When_CalledOutOfGlContext() {
     public void ShouldReturnProperties() {
       var glContext = GetGlContext();
 
-#if UNITY_STANDALONE_LINUX || UNITY_ANDROID
+#if UNITY_EDITOR_LINUX || UNITY_STANDALONE_LINUX || UNITY_ANDROID
       Assert.AreNotEqual(glContext.eglDisplay, IntPtr.Zero);
       Assert.AreNotEqual(glContext.eglConfig, IntPtr.Zero);
       Assert.AreNotEqual(glContext.eglContext, IntPtr.Zero);
diff --git a/Documentation/MediaPipeUnityPlugin.md b/Documentation/MediaPipeUnityPlugin.md
new file mode 100644
index 000000000..cb50ed920
--- /dev/null
+++ b/Documentation/MediaPipeUnityPlugin.md
@@ -0,0 +1,39 @@
+# MediaPipeUnityPlugin
+
+## Platform dependent compilation
+```cs
+#if UNITY_EDITOR_LINUX || UNITY_STANDALONE_LINUX || UNITY_ANDROID || UNITY_IOS
+// When GPU is available (SDK)
+#elif (UNITY_STANDALONE_LINUX || UNITY_ANDROID || UNITY_IOS) && !UNITY_EDITOR_OSX && !UNITY_EDITOR_WIN
+// (Application Code)
+#endif
+
+#if UNITY_EDITOR_LINUX || UNITY_STANDALONE_LINUX || UNITY_ANDROID
+// When GpuBuffer uses GlTextureBuffer (SDK)
+#elif (UNITY_STANDALONE_LINUX || UNITY_ANDROID) && !UNITY_EDITOR_OSX && !UNITY_EDITOR_WIN
+// (Application Code)
+#endif
+
+#if UNITY_IOS
+// When GpuBuffer uses CVPixelBuffer (SDK)
+#elif UNITY_IOS && !UNITY_EDITOR
+// (Application Code)
+#endif
+
+#if UNITY_EDITOR_LINUX || UNITY_STANDALONE_LINUX || UNITY_ANDROID
+// When EGL is available (SDK)
+#elif (UNITY_STANDALONE_LINUX || UNITY_ANDROID) && !UNITY_EDITOR_OSX && !UNITY_EDITOR_WIN
+// (Application Code)
+#endif
+
+#if UNITY_IOS
+// When EAGL is available (SDK)
+#if UNITY_IOS && !UNITY_EDITOR
+// (Application Code)
+#endif
+
+#if UNITY_STANDALONE_OSX
+// When NSGL is available (SDK)
+// NOTE: On macOS, native libs cannot be built with GPU enabled, so NSGL isn't available now.
+#endif
+```