diff --git a/Makefile b/Makefile
index 37cec9c..dd2bf6b 100644
--- a/Makefile
+++ b/Makefile
@@ -20,10 +20,14 @@ else
 	BUNDLE_DIR = Reframe360.ofx.bundle/Contents/MacOS/
 	METAL_OBJ = Reframe360Kernel.o
 	OPENCL_OBJ = OpenCLKernel.o
+	METAL_ARM_OBJ = Reframe360Kernel-arm.o
+	OPENCL_ARM_OBJ = OpenCLKernel-arm.o
+	APPLE86_64_FLAG =  -target x86_64-apple-macos10.12
+	APPLEARM64_FLAG =  -target arm64-apple-macos11
 endif
 
 Reframe360.ofx:  Reframe360.o $(OPENCL_OBJ) $(CUDA_OBJ) $(METAL_OBJ) ofxsCore.o ofxsImageEffect.o ofxsInteract.o ofxsLog.o ofxsMultiThread.o ofxsParams.o ofxsProperty.o ofxsPropertyValidation.o
-	$(CXX) $^ -o $@ $(LDFLAGS)
+	$(CXX) $(APPLE86_64_FLAG) $^ -o $@ $(LDFLAGS)
 	mkdir -p $(BUNDLE_DIR)
 	cp Reframe360.ofx $(BUNDLE_DIR)
 
@@ -31,35 +35,77 @@ CudaKernel.o: CudaKernel.cu
 	${NVCC} -c $< $(NVCCFLAGS)
 
 Reframe360.o: Reframe360.cpp
-	$(CXX) -c $< $(CXXFLAGS)
+	$(CXX) $(APPLE86_64_FLAG) -c $< $(CXXFLAGS)
 	
 Reframe360Kernel.o: Reframe360Kernel.mm
 	python metal2string.py Reframe360Kernel.metal Reframe360Kernel.h
-	$(CXX) -c $< $(CXXFLAGS)
+	$(CXX) $(APPLE86_64_FLAG) -c $< $(CXXFLAGS)
+
+OpenCLKernel.o: OpenCLKernel.cpp
+	$(CXX) $(APPLE86_64_FLAG) -c $< $(CXXFLAGS) -o $@
 
 ofxsCore.o: $(BMDOFXDEVPATH)/Support/Library/ofxsCore.cpp
-	$(CXX) -c "$<" $(CXXFLAGS)
+	$(CXX) $(APPLE86_64_FLAG) -c "$<" $(CXXFLAGS)
 
 ofxsImageEffect.o: $(BMDOFXDEVPATH)/Support/Library/ofxsImageEffect.cpp
-	$(CXX) -c "$<" $(CXXFLAGS)
+	$(CXX) $(APPLE86_64_FLAG) -c "$<" $(CXXFLAGS)
 
 ofxsInteract.o: $(BMDOFXDEVPATH)/Support/Library/ofxsInteract.cpp
-	$(CXX) -c "$<" $(CXXFLAGS)
+	$(CXX) $(APPLE86_64_FLAG) -c "$<" $(CXXFLAGS)
 
 ofxsLog.o: $(BMDOFXDEVPATH)/Support/Library/ofxsLog.cpp
-	$(CXX) -c "$<" $(CXXFLAGS)
+	$(CXX) $(APPLE86_64_FLAG) -c "$<" $(CXXFLAGS)
 
 ofxsMultiThread.o: $(BMDOFXDEVPATH)/Support/Library/ofxsMultiThread.cpp
-	$(CXX) -c "$<" $(CXXFLAGS)
+	$(CXX) $(APPLE86_64_FLAG) -c "$<" $(CXXFLAGS)
 
 ofxsParams.o: $(BMDOFXDEVPATH)/Support/Library/ofxsParams.cpp
-	$(CXX) -c "$<" $(CXXFLAGS)
+	$(CXX) $(APPLE86_64_FLAG) -c "$<" $(CXXFLAGS)
 
 ofxsProperty.o: $(BMDOFXDEVPATH)/Support/Library/ofxsProperty.cpp
-	$(CXX) -c "$<" $(CXXFLAGS)
+	$(CXX) $(APPLE86_64_FLAG) -c "$<" $(CXXFLAGS)
 
 ofxsPropertyValidation.o: $(BMDOFXDEVPATH)/Support/Library/ofxsPropertyValidation.cpp
-	$(CXX) -c "$<" $(CXXFLAGS)
+	$(CXX) $(APPLE86_64_FLAG) -c "$<" $(CXXFLAGS)
+
+Reframe360-arm.ofx:  Reframe360-arm.o $(OPENCL_ARM_OBJ) $(METAL_ARM_OBJ) ofxsCore-arm.o ofxsImageEffect-arm.o ofxsInteract-arm.o ofxsLog-arm.o ofxsMultiThread-arm.o ofxsParams-arm.o ofxsProperty-arm.o ofxsPropertyValidation-arm.o
+	$(CXX) $(APPLEARM64_FLAG) $^ -o $@ $(LDFLAGS)
+	mkdir -p $(BUNDLE_DIR)
+	cp Reframe360.ofx $(BUNDLE_DIR)
+
+Reframe360-arm.o: Reframe360.cpp
+	$(CXX) $(APPLEARM64_FLAG) -c $< $(CXXFLAGS) -o $@
+
+Reframe360Kernel-arm.o: Reframe360Kernel.mm
+	python metal2string.py Reframe360Kernel.metal Reframe360Kernel.h
+	$(CXX) $(APPLEARM64_FLAG) -c $< $(CXXFLAGS) -o $@
+
+OpenCLKernel-arm.o: OpenCLKernel.cpp
+	$(CXX) $(APPLEARM64_FLAG) -c $< $(CXXFLAGS) -o $@
+	
+ofxsCore-arm.o: $(BMDOFXDEVPATH)/Support/Library/ofxsCore.cpp
+	$(CXX) $(APPLEARM64_FLAG) -c "$<" $(CXXFLAGS) -o $@
+
+ofxsImageEffect-arm.o: $(BMDOFXDEVPATH)/Support/Library/ofxsImageEffect.cpp
+	$(CXX) $(APPLEARM64_FLAG) -c "$<" $(CXXFLAGS) -o $@
+
+ofxsInteract-arm.o: $(BMDOFXDEVPATH)/Support/Library/ofxsInteract.cpp
+	$(CXX) $(APPLEARM64_FLAG) -c "$<" $(CXXFLAGS) -o $@
+
+ofxsLog-arm.o: $(BMDOFXDEVPATH)/Support/Library/ofxsLog.cpp
+	$(CXX) $(APPLEARM64_FLAG) -c "$<" $(CXXFLAGS) -o $@
+
+ofxsMultiThread-arm.o: $(BMDOFXDEVPATH)/Support/Library/ofxsMultiThread.cpp
+	$(CXX) $(APPLEARM64_FLAG) -c "$<" $(CXXFLAGS) -o $@
+
+ofxsParams-arm.o: $(BMDOFXDEVPATH)/Support/Library/ofxsParams.cpp
+	$(CXX) $(APPLEARM64_FLAG) -c "$<" $(CXXFLAGS) -o $@
+
+ofxsProperty-arm.o: $(BMDOFXDEVPATH)/Support/Library/ofxsProperty.cpp
+	$(CXX) $(APPLEARM64_FLAG) -c "$<" $(CXXFLAGS) -o $@
+
+ofxsPropertyValidation-arm.o: $(BMDOFXDEVPATH)/Support/Library/ofxsPropertyValidation.cpp
+	$(CXX) $(APPLEARM64_FLAG) -c "$<" $(CXXFLAGS) -o $@
 
 Reframe360Kernel.h: Reframe360Kernel.metal
 	python metal2string.py Reframe360Kernel.metal Reframe360Kernel.h
@@ -74,7 +120,20 @@ clean:
 	rm -fr Reframe360.ofx.bundle
 
 ifeq ($(UNAME_SYSTEM), Darwin)
+.DEFAULT_GOAL := darwin
+
+.PHONY: darwin
+darwin: clean install-universal
+
 install: Reframe360.ofx
 	rm -rf /Library/OFX/Plugins/Reframe360.ofx.bundle
 	cp -a Reframe360.ofx.bundle /Library/OFX/Plugins/
+
+install-universal: Reframe360.ofx Reframe360-arm.ofx
+	lipo -create -output Reframe360-universal.ofx Reframe360.ofx Reframe360-arm.ofx
+	rm -rf $(BUNDLE_DIR)
+	mkdir -p $(BUNDLE_DIR)
+	cp Reframe360-universal.ofx $(BUNDLE_DIR)/Reframe360.ofx
+	rm -rf /Library/OFX/Plugins/Reframe360.ofx.bundle
+	cp -a Reframe360.ofx.bundle /Library/OFX/Plugins/
 endif
diff --git a/README.md b/README.md
index e51bd47..3622d89 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,8 @@ New features and bug fixes:
 
 Enjoy!
 
-# Installation on MacOS
+# Installation on MacOS (Intel and Apple Silicon)
+* Build tested on MacOS 11.2.3 / XCode 12.4
 * Install latest XCode from Apple App store
 * Install Blackmagic DaVinci Resolve from Blackmagic website (free or studio version)
 * clone glm repository https://github.com/bclarksoftware/glm.git
@@ -18,5 +19,5 @@ Enjoy!
 * and build
 ````
 cd reframe360XL
-make install
-````
\ No newline at end of file
+make
+````