diff --git a/tools/common/Application.cs b/tools/common/Application.cs
index c5c33441f27..f8f3557173f 100644
--- a/tools/common/Application.cs
+++ b/tools/common/Application.cs
@@ -546,7 +546,6 @@ public void ParseInterpreter (string value)
 				InterpretedAssemblies.AddRange (value.Split (new char [] { ',' }, StringSplitOptions.RemoveEmptyEntries));
 		}
 
-#if !NET || LEGACY_TOOLS
 		public void UnsetInterpreter ()
 		{
 			UseInterpreter = false;
diff --git a/tools/mmp/Makefile b/tools/mmp/Makefile
index d08112a765f..01552856f20 100644
--- a/tools/mmp/Makefile
+++ b/tools/mmp/Makefile
@@ -16,7 +16,7 @@ LOCAL_MMP_COMMAND=$(DOTNET) exec $(LOCAL_MMP)
 mmp.csproj.inc: export BUILD_VERBOSITY=$(MSBUILD_VERBOSITY)
 -include mmp.csproj.inc
 
-$(MMP_DIR)/mmp.exe: $(mmp_dependencies)
+$(LOCAL_MMP): $(mmp_dependencies)
 	$(Q_GEN) $(DOTNET) build "/bl:$@.binlog" mmp.csproj $(XBUILD_VERBOSITY) /p:Configuration=$(MMP_CONF)
 
 MMP_TARGETS_DOTNET = \
@@ -25,32 +25,10 @@ MMP_TARGETS_DOTNET = \
 	$(DOTNET_DESTDIR)/$(osx-x64_NUGET_RUNTIME_NAME)/runtimes/osx-x64/native/Microsoft.macOS.registrar.coreclr.a \
 	$(DOTNET_DESTDIR)/$(osx-arm64_NUGET_RUNTIME_NAME)/runtimes/osx-arm64/native/Microsoft.macOS.registrar.coreclr.a \
 
-MMP_TARGETS = \
-	$(MAC_DESTDIR)$(MAC_FRAMEWORK_CURRENT_DIR)/bin/mmp \
-	$(MAC_DESTDIR)$(MAC_FRAMEWORK_CURRENT_DIR)/lib/mmp/mmp.exe \
-	$(MAC_DESTDIR)$(MAC_FRAMEWORK_CURRENT_DIR)/lib/mmp/Xamarin.Mac.registrar.mobile.a \
-	$(MAC_DESTDIR)$(MAC_FRAMEWORK_CURRENT_DIR)/lib/mmp/Xamarin.Mac.registrar.full.a \
-
 MMP_DIRECTORIES_DOTNET = \
 	$(DOTNET_DESTDIR)/$(osx-x64_NUGET_RUNTIME_NAME)/runtimes/osx-x64/native \
 	$(DOTNET_DESTDIR)/$(osx-arm64_NUGET_RUNTIME_NAME)/runtimes/osx-arm64/native \
 
-MMP_DIRECTORIES = \
-	$(MAC_DESTDIR)$(MAC_FRAMEWORK_CURRENT_DIR)/bin \
-	$(MAC_DESTDIR)$(MAC_FRAMEWORK_CURRENT_DIR)/lib/mmp \
-	$(MMP_DIRECTORIES_DOTNET) \
-
-$(MAC_DESTDIR)$(MAC_FRAMEWORK_CURRENT_DIR)/bin/mmp: mmp | $(MAC_DESTDIR)$(MAC_FRAMEWORK_CURRENT_DIR)/bin
-	$(Q) $(CP) $< $@
-
-$(MAC_DESTDIR)$(MAC_FRAMEWORK_CURRENT_DIR)/lib/mmp/mmp.exe: $(MMP_DIR)/mmp.exe | $(MAC_DESTDIR)$(MAC_FRAMEWORK_CURRENT_DIR)/lib/mmp
-	$(Q) $(CP) $(dir $<)/*.exe $(dir $@)
-	$(Q) $(CP) $(dir $<)/*.dll $(dir $@)
-	$(Q) $(CP) $(dir $<)/*.pdb $(dir $@)
-
-$(MAC_DESTDIR)$(MAC_FRAMEWORK_CURRENT_DIR)/lib/mmp/Xamarin.Mac.registrar.%.a: Xamarin.Mac.registrar.%.a | $(MAC_DESTDIR)$(MAC_FRAMEWORK_CURRENT_DIR)/lib/mmp
-	$(Q) $(CP) $<* $(dir $@)
-
 $(DOTNET_DESTDIR)/$(osx-x64_NUGET_RUNTIME_NAME)/runtimes/osx-x64/native/Microsoft.macOS.registrar.a: Microsoft.macOS.registrar.x86_64.a | $(DOTNET_DESTDIR)/$(osx-x64_NUGET_RUNTIME_NAME)/runtimes/osx-x64/native
 	$(Q) $(CP) $< $@
 
@@ -72,14 +50,6 @@ $(MMP_DIRECTORIES):
 
 GENERATE_PART_REGISTRAR = $(Q_GEN) $(LOCAL_MMP_COMMAND) --xamarin-framework-directory=$(MAC_DESTDIR)$(MAC_FRAMEWORK_CURRENT_DIR) -q --runregistrar:$(abspath $@) --sdkroot $(XCODE_DEVELOPER_ROOT) --sdk $(MACOS_SDK_VERSION) $(abspath $<) --registrar:static --nolink
 
-Xamarin.Mac.registrar.mobile.x86_64.m: $(TOP)/src/build/mac/mobile-64/Xamarin.Mac.dll $(LOCAL_MMP)
-	$(GENERATE_PART_REGISTRAR) --arch=x86_64 --target-framework Xamarin.Mac,Version=v2.0,Profile=Mobile -a:$(MOBILE_BCL_DIR)/mscorlib.dll
-	$(Q) touch Xamarin.Mac.registrar.mobile.x86_64.m Xamarin.Mac.registrar.mobile.x86_64.h
-
-Xamarin.Mac.registrar.mobile.arm64.m: $(TOP)/src/build/mac/mobile-64/Xamarin.Mac.dll $(LOCAL_MMP)
-	$(GENERATE_PART_REGISTRAR) --arch=arm64 --target-framework Xamarin.Mac,Version=v2.0,Profile=Mobile -a:$(MOBILE_BCL_DIR)/mscorlib.dll
-	$(Q) touch Xamarin.Mac.registrar.mobile.arm64.m Xamarin.Mac.registrar.mobile.arm64.h
-
 Microsoft.macOS.registrar.x86_64.m: $(TOP)/src/build/dotnet/macos/64/Microsoft.macOS.dll $(LOCAL_MMP)
 	$(GENERATE_PART_REGISTRAR) --arch=x86_64 --target-framework .NETCoreApp,Version=$(subst net,,$(DOTNET_TFM)),Profile=macos -a:$(DOTNET_BCL_DIR)/System.Runtime.dll -a:$(DOTNET_BCL_DIR)/System.Runtime.InteropServices.dll
 	$(Q) touch $@ $(basename $@).h
@@ -110,34 +80,14 @@ Xamarin.Mac.registrar.full.arm64.m:   $(TOP)/src/build/mac/full-64/Xamarin.Mac.d
 %.arm64.a: %.arm64.m
 	$(Q_CC) $(MAC_CC) -DDEBUG -g -gdwarf-2 -x objective-c++ -std=c++14 -o $@ -c -arch arm64 $< -Wall -Wno-unguarded-availability-new -I$(TOP)/runtime -mmacosx-version-min=$(MIN_MACOS_SDK_VERSION) -fobjc-runtime=macosx $(EXTRA_DEFINES)
 
-Xamarin.Mac.registrar.%.a: Xamarin.Mac.registrar.%.x86_64.a Xamarin.Mac.registrar.%.arm64.a
-	$(Q_LIPO) $(DEVICE_BIN_PATH)/lipo -create -output $@ $^
-
 dotnet: $(MMP_TARGETS_DOTNET)
-ifdef ENABLE_DOTNET
 ifdef INCLUDE_MAC
 install-local:: $(MMP_TARGETS_DOTNET)
 all-local:: $(MMP_TARGETS_DOTNET)
 endif
-endif
-
-ifdef INCLUDE_XAMARIN_LEGACY
-ifdef INCLUDE_MAC
-install-local:: $(MMP_TARGETS)
-all-local:: $(MMP_TARGETS)
-endif
-endif
 
 clean-local::
-	rm -f mmp.stub.c mmp.helper.o
 	rm -rf bin obj
-	rm -f Xamarin.Mac.registrar.*
-	$(SYSTEM_MSBUILD) "/t:Clean" /p:Configuration=$(MMP_CONF) *.csproj
 
 include $(TOP)/mk/rules.mk
 include ../common/Make.common
-
-# make will automatically consider files created in chained implicit rules as temporary files, and delete them afterwards
-# marking those files as .SECONDARY will prevent that deletion.
-.SECONDARY: $(foreach ext,h m a,Xamarin.Mac.registrar.mobile.x86_64.$(ext) Xamarin.Mac.registrar.mobile.arm64.$(ext) Xamarin.Mac.registrar.full.x86_64.$(ext) Xamarin.Mac.registrar.full.arm64.$(ext))
-.SECONDARY: Xamarin.Mac.registrar.mobile.a Xamarin.Mac.registrar.full.a
diff --git a/tools/mtouch/Makefile b/tools/mtouch/Makefile
index eeb5a55f91b..897c7c10481 100644
--- a/tools/mtouch/Makefile
+++ b/tools/mtouch/Makefile
@@ -5,221 +5,6 @@ include $(TOP)/Make.config
 # in system headers show up.
 export CCACHE_CPP2=1
 
-ifdef IOS_SUPPORTS_32BIT_ARCHITECTURES
-SIMLAUNCHERS = simlauncher32-sgen simlauncher64-sgen
-else
-SIMLAUNCHERS = simlauncher64-sgen
-endif
-
-UNREFERENCED_SYMBOLS = 							\
-	_xamarin_dyn_objc_msgSend 					\
-	_xamarin_dyn_objc_msgSendSuper 				\
-	_xamarin_dyn_objc_msgSend_stret 			\
-	_xamarin_dyn_objc_msgSendSuper_stret 		\
-	_xamarin_init_nsthread						\
-	_xamarin_get_block_descriptor				\
-	_xamarin_get_locale_country_code			\
-	_xamarin_log								\
-	_xamarin_localized_string_format			\
-	_xamarin_localized_string_format_1			\
-	_xamarin_localized_string_format_2			\
-	_xamarin_localized_string_format_3			\
-	_xamarin_localized_string_format_4			\
-	_xamarin_localized_string_format_5			\
-	_xamarin_localized_string_format_6			\
-	_xamarin_localized_string_format_7			\
-	_xamarin_localized_string_format_8			\
-	_xamarin_localized_string_format_9			\
-	_xamarin_start_wwan							\
-	_xamarin_timezone_get_data					\
-	_xamarin_timezone_get_names					\
-	_xamarin_timezone_get_local_name			\
-	_xamarin_IntPtr_objc_msgSend_IntPtr_exception		\
-	_xamarin_IntPtr_objc_msgSendSuper_IntPtr_exception	\
-	_xamarin_release_managed_ref				\
-	_xamarin_CGPoint__VNNormalizedFaceBoundingBoxPointForLandmarkPoint_Vector2_CGRect_nuint_nuint_string \
-	_xamarin_CGPoint__VNImagePointForFaceLandmarkPoint_Vector2_CGRect_nuint_nuint_string \
-	_CloseZStream								\
-	_CreateZStream								\
-	_Flush										\
-	_ReadZStream								\
-	_WriteZStream
-
-# The frameworks order is important as some symbols can be duplicated 
-# e.g. NSURLResponse is both in CFNetwork and Foundation in iOS8 but linking to
-# CFNetwork will result in binaries that won't work with earlier iOS versions
-SIMLAUNCHER_FRAMEWORKS =  \
-	-framework CoreFoundation		\
-	-framework CoreGraphics			\
-	-framework Foundation			\
-	-framework AVFoundation			\
-	-framework Accelerate			\
-	-framework AddressBook			\
-	-framework AddressBookUI		\
-	-framework AudioToolbox			\
-	-framework CFNetwork			\
-	-framework CoreAudio			\
-	-framework CoreData			\
-	-framework CoreLocation			\
-	-framework CoreText			\
-	-framework ExternalAccessory		\
-	-framework MapKit			\
-	-framework MediaPlayer			\
-	-framework MessageUI			\
-	-framework MobileCoreServices		\
-	-framework OpenAL			\
-	-framework OpenGLES			\
-	-framework StoreKit			\
-	-framework SystemConfiguration		\
-	-framework UIKit			\
-						\
-	-weak_framework CoreMedia		\
-	-weak_framework CoreMidi		\
-	-weak_framework CoreMotion		\
-	-weak_framework CoreTelephony		\
-	-weak_framework CoreVideo		\
-	-weak_framework EventKit		\
-	-weak_framework EventKitUI		\
-	-weak_framework ImageIO			\
-	-weak_framework Security		\
-	-weak_framework QuickLook		\
-	-weak_framework iAd			\
-	-weak_framework Accounts		\
-	-weak_framework GLKit			\
-	-weak_framework CoreImage		\
-	-weak_framework CoreBluetooth		\
-	-weak_framework Twitter			\
-	-weak_framework PassKit			\
-	-weak_framework Social			\
-	-weak_framework AdSupport		\
-	-weak_framework JavaScriptCore		\
-	-weak_framework MultipeerConnectivity	\
-	-weak_framework SafariServices		\
-	-weak_framework SpriteKit		\
-						\
-	-weak_framework HomeKit			\
-	-weak_framework HealthKit		\
-	-weak_framework LocalAuthentication	\
-	-weak_framework NotificationCenter	\
-	-weak_framework PushKit			\
-	-weak_framework Photos			\
-	-weak_framework PhotosUI		\
-	-weak_framework SceneKit		\
-	-weak_framework CloudKit		\
-	-weak_framework AVKit			\
-	-weak_framework WebKit			\
-	-weak_framework NetworkExtension	\
-	-weak_framework Metal				\
-	-weak_framework CoreAudioKit		\
-						\
-	-weak_framework ReplayKit					\
-	-weak_framework Contacts					\
-	-weak_framework ContactsUI					\
-	-weak_framework CoreSpotlight				\
-	-weak_framework WatchConnectivity			\
-	-weak_framework ModelIO						\
-	-weak_framework GameplayKit					\
-	-weak_framework Metal						\
-	-weak_framework MetalKit					\
-	-weak_framework MetalPerformanceShaders		\
-	-weak_framework MetalPerformanceShadersGraph\
-						\
-	-weak_framework HealthKitUI					\
-						\
-	-weak_framework CallKit					\
-	-weak_framework Messages				\
-	-weak_framework Speech					\
-	-weak_framework VideoSubscriberAccount	\
-	-weak_framework UserNotifications		\
-	-weak_framework UserNotificationsUI		\
-	-weak_framework Intents					\
-	-weak_framework IntentsUI					\
-						\
-	-weak_framework ARKit					\
-	-weak_framework FileProvider			\
-	-weak_framework FileProviderUI			\
-						\
-	-weak_framework IdentityLookup			\
-	-weak_framework BusinessChat			\
-	-weak_framework ClassKit				\
-						\
-	-weak_framework AuthenticationServices	\
-	-weak_framework CarPlay					\
-	-weak_framework IdentityLookupUI		\
-	-weak_framework NaturalLanguage			\
-	-weak_framework Network				\
-	-weak_framework IdentityLookupUI		\
-	-weak_framework VisionKit		\
-						\
-	-weak_framework BackgroundTasks 		\
-	-weak_framework CoreHaptics \
-	-weak_framework LinkPresentation 		\
-	-weak_framework MetricKit		\
-	-weak_framework PencilKit			\
-	-weak_framework QuickLookThumbnailing		\
-	-weak_framework SoundAnalysis			\
-	-weak_framework VisionKit			\
-						\
-	-weak_framework AutomaticAssessmentConfiguration	\
-						\
-	-weak_framework Accessibility	\
-	-weak_framework AppClip	\
-	-weak_framework AppTrackingTransparency	\
-	-weak_framework ScreenTime \
-	-weak_framework SensorKit \
-	-weak_framework UniformTypeIdentifiers \
-	-weak_framework NearbyInteraction \
-						\
-	-weak_framework AdServices	\
-						\
-	-weak_framework CoreLocationUI \
-	-weak_framework OSLog \
-						\
-	-weak_framework AVRouting \
-	-weak_framework BackgroundAssets \
-	-weak_framework SafetyKit \
-	-weak_framework DeviceDiscoveryExtension \
-	-weak_framework SharedWithYou \
-	-weak_framework SharedWithYouCore \
-						\
-	-weak_framework Symbols \
-	-weak_framework SensitiveContentAnalysis \
-	-weak_framework BrowserEngineKit \
-
-SIMLAUNCHER64_FRAMEWORKS =  \
-	-framework GameKit				\
-# keep the above list of weak_framework
-# 1. grouped by iOS versions;
-# 2. sorted and
-# 3. in sync with the list inside `tools/common/Frameworks.cs`
-# except it is no a mistake that GameController and MediaAccessibility (#13636) are not built into simlauncher
-
-# note: there _was_ no CoreAudioKit.framework or Metal.framework for the simulator (before recent iOS9 betas)
-# note 2: there's no GameKit, in iOS 9 (beta 3 at least), you're supposed to reference GameCenter instead (looks fixed in beta 4)
-# note 3: there's no MetalKit or MetalPerformanceShaders in iOS 9 beta 4 - but other frameworks were added
-# note 4: GameCenter was removed in Xcode 7 beta 5, and GameKit is back.
-# note 5: Metal* seems to be supported as of some Xcode 7 beta (b2 didn't, but the final release does)
-# note 6: Xcode 11 beta 1 shipped without WatchKit.
-# note 7: Xcode 11 beta 3 documented that shipping without WatchKit was done on purpose (in the release notes).
-# note 8: Xcode 14 beta 2 removed GameKit for 32-bit iOS
-
-define SimlauncherTemplate
-
-simlauncher$(3)-sgen: simlauncher.mm $(TOP)/runtime/.libs/iphonesimulator/libxamarin-debug.a Makefile Xamarin.iOS.registrar.ios.simulator.a
-	$(QT_CC) $(SIMULATOR_CC) -DDEBUG -DSIMLAUNCHER $(1) -gdwarf-2 \
-		-L$(TOP)/runtime/.libs/iphonesimulator \
-		-I$(TOP)/runtime \
-		$(MONO_IOS_SDK_DESTDIR)/ios-libs/ios-sim/libmonosgen-2.0.a \
-		$(foreach u,$(UNREFERENCED_SYMBOLS),-u $u)  \
-		$(TOP)/runtime/.libs/iphonesimulator/libapp.a \
-		-Wl,-w \
-		-lz -liconv $(TOP)/runtime/.libs/iphonesimulator/libxamarin-debug.a simlauncher.mm $(SIMLAUNCHER_FRAMEWORKS) $(SIMLAUNCHER$(3)_FRAMEWORKS) $(SIMULATOR$(2)_OBJC_CFLAGS) -o $$@
-	$(Q) xcrun otool -L $$@ > $$@.frameworks
-endef
-
-$(eval $(call SimlauncherTemplate,Xamarin.iOS.registrar.ios.simulator.a,86,32))
-$(eval $(call SimlauncherTemplate,Xamarin.iOS.registrar.ios.simulator.a,64,64))
-
 #
 # mtouch
 #
@@ -247,75 +32,30 @@ $(abspath Constants.cs): Constants.cs.in Makefile $(TOP)/Make.config.inc
 # Partial static registrar libraries
 #
 define RunRegistrar
-%.registrar.$(1).$(2).m %.registrar.$(1).$(2).h: $(IOS_DESTDIR)$(MONOTOUCH_PREFIX)/lib/$(3)bits/$(9)/%.dll $(LOCAL_MTOUCH)
-	$$(Q_GEN) $$(LOCAL_MTOUCH_COMMAND) --xamarin-framework-directory=$$(IOS_DESTDIR)/$$(MONOTOUCH_PREFIX) $$(MTOUCH_VERBOSITY) --runregistrar:$$(abspath $$(basename $$@).m) --sdkroot $$(XCODE_DEVELOPER_ROOT) --sdk $(4) $$< --registrar:static --target-framework Xamarin.$(5),v1.0 --abi $(2) -r:$(8)/mscorlib.dll
-	$$(Q) touch $$(basename $$@).m $$(basename $$@).h
-
 .libs/Microsoft.$(9).registrar.$(10)%m .libs/Microsoft.$(9).registrar.$(10)%h: $(TOP)/src/build/dotnet/$(1)/$(3)/Microsoft.$(9).dll $(LOCAL_MTOUCH) | .libs
-	$$(Q_GEN) $$(LOCAL_MTOUCH_COMMAND) --xamarin-framework-directory=$$(IOS_DESTDIR)/$$(MONOTOUCH_PREFIX) $$(MTOUCH_VERBOSITY) --runregistrar:$$(abspath $$(basename $$@).m) --sdkroot $$(XCODE_DEVELOPER_ROOT) --sdk $(4) $$< --registrar:static --target-framework .NETCoreApp,Version=$(subst net,,$(DOTNET_TFM)),Profile=$(1) --abi $(2) -r:$(DOTNET_BCL_DIR)/System.Runtime.dll -r:$(DOTNET_BCL_DIR)/System.Runtime.InteropServices.dll --rid $(10)
+	$$(Q_GEN) $$(LOCAL_MTOUCH_COMMAND) $$(MTOUCH_VERBOSITY) --runregistrar:$$(abspath $$(basename $$@).m) --sdkroot $$(XCODE_DEVELOPER_ROOT) --sdk $(4) $$< --registrar:static --target-framework .NETCoreApp,Version=$(subst net,,$(DOTNET_TFM)),Profile=$(1) --abi $(2) -r:$(DOTNET_BCL_DIR)/System.Runtime.dll -r:$(DOTNET_BCL_DIR)/System.Runtime.InteropServices.dll --rid $(10)
 	$$(Q) touch $$(basename $$@).m $$(basename $$@).h
 
-%.registrar.$(1).$(2).a: %.registrar.$(1).$(2).m %.registrar.$(1).$(2).h
-	$$(Q_CC) $$(IOS_CC) -DDEBUG -g -gdwarf-2 $(6) -stdlib=libc++ -std=c++14 -x objective-c++ -o $$@ -c $$< -Wall -Wno-unguarded-availability-new -I$(7) -I$(TOP)/runtime
-
 .libs/Microsoft.$(9).registrar.$(10).a: .libs/Microsoft.$(9).registrar.$(10).m .libs/Microsoft.$(9).registrar.$(10).h | .libs
 	$$(Q_CC) $$(IOS_CC) -DDEBUG -g -gdwarf-2 $(6) -stdlib=libc++ -std=c++14 -x objective-c++ -o $$@ -c $$< -Wall -Wno-unguarded-availability-new -I$(7) -I$(TOP)/runtime
 
 # make will automatically consider files created in chained implicit rules as temporary files, and delete them afterwards
 # marking those files as .SECONDARY will prevent that deletion.
-.SECONDARY: Xamarin.$(5).registrar.$(1).$(2).m Xamarin.$(5).registrar.$(1).$(2).h Xamarin.$(5).registrar.$(1).$(2).a
 .SECONDARY: .libs/Microsoft.$(8).registrar.$(2).m .libs/Microsoft.$(8).registrar.$(2).h .libs/Microsoft.$(8).registrar.$(2).a
 endef
-ifdef IOS_SUPPORTS_32BIT_ARCHITECTURES
-$(eval $(call RunRegistrar,ios,i386,32,$(IOS_SDK_VERSION),iOS,$(SIMULATOR86_CFLAGS),$(IOS_DESTDIR)$(MONOTOUCH_PREFIX)/SDKs/MonoTouch.iphonesimulator.sdk/include,$(MONOTOUCH_MONO_PATH),iOS,iossimulator-x86))
-endif
 $(eval $(call RunRegistrar,ios,x86_64,64,$(IOS_SDK_VERSION),iOS,$(SIMULATOR64_CFLAGS),$(IOS_DESTDIR)$(MONOTOUCH_PREFIX)/SDKs/MonoTouch.iphonesimulator.sdk/include,$(MONOTOUCH_MONO_PATH),iOS,iossimulator-x64))
 $(eval $(call RunRegistrar,ios,arm64,64,$(IOS_SDK_VERSION),iOS,$(SIMULATOR_ARM64_CFLAGS),$(IOS_DESTDIR)$(MONOTOUCH_PREFIX)/SDKs/MonoTouch.iphonesimulator.sdk/include,$(MONOTOUCH_MONO_PATH),iOS,iossimulator-arm64))
-ifdef IOS_SUPPORTS_32BIT_ARCHITECTURES
-$(eval $(call RunRegistrar,ios,armv7,32,$(IOS_SDK_VERSION),iOS,$(DEVICE7_CFLAGS),$(IOS_DESTDIR)$(MONOTOUCH_PREFIX)/SDKs/MonoTouch.iphoneos.sdk/include,$(MONOTOUCH_MONO_PATH),iOS,armv7))
-$(eval $(call RunRegistrar,ios,armv7s,32,$(IOS_SDK_VERSION),iOS,$(DEVICE7S_CFLAGS),$(IOS_DESTDIR)$(MONOTOUCH_PREFIX)/SDKs/MonoTouch.iphoneos.sdk/include,$(MONOTOUCH_MONO_PATH),iOS,armv7s))
-endif
 $(eval $(call RunRegistrar,ios,arm64,64,$(IOS_SDK_VERSION),iOS,$(DEVICE64_CFLAGS),$(IOS_DESTDIR)$(MONOTOUCH_PREFIX)/SDKs/MonoTouch.iphoneos.sdk/include,$(MONOTOUCH_MONO_PATH),iOS,ios-arm64))
 $(eval $(call RunRegistrar,tvos,x86_64,64,$(TVOS_SDK_VERSION),TVOS,$(SIMULATORTV_CFLAGS),$(IOS_DESTDIR)$(XAMARIN_TVSIMULATOR_SDK)/include,$(MONOTOUCH_TV_MONO_PATH),tvOS,tvossimulator-x64))
 $(eval $(call RunRegistrar,tvos,arm64,64,$(TVOS_SDK_VERSION),TVOS,$(SIMULATORTV_ARM64_CFLAGS),$(IOS_DESTDIR)$(XAMARIN_TVSIMULATOR_SDK)/include,$(MONOTOUCH_TV_MONO_PATH),tvOS,tvossimulator-arm64))
 $(eval $(call RunRegistrar,tvos,arm64,64,$(TVOS_SDK_VERSION),TVOS,$(DEVICETV_CFLAGS),$(IOS_DESTDIR)$(XAMARIN_TVOS_SDK)/include,$(MONOTOUCH_TV_MONO_PATH),tvOS,tvos-arm64))
-$(eval $(call RunRegistrar,watchos,x86_64,64,$(WATCH_SDK_VERSION),WatchOS,$(SIMULATORWATCH64_CFLAGS),$(IOS_DESTDIR)$(XAMARIN_WATCHSIMULATOR_SDK)/include,$(MONOTOUCH_WATCH_MONO_PATH),watchOS,watchos-x64))
-ifdef WATCHOS_SUPPORTS_32BIT_SIMULATOR_ARCHITECTURES
-$(eval $(call RunRegistrar,watchos,i386,32,$(WATCH_SDK_VERSION),WatchOS,$(SIMULATORWATCH_CFLAGS),$(IOS_DESTDIR)$(XAMARIN_WATCHSIMULATOR_SDK)/include,$(MONOTOUCH_WATCH_MONO_PATH),watchOS,watchos-x86))
-endif
-ifdef WATCHOS_SUPPORTS_32BIT_DEVICE_ARCHITECTURES
-$(eval $(call RunRegistrar,watchos,armv7k,32,$(WATCH_SDK_VERSION),WatchOS,$(DEVICEWATCH_CFLAGS),$(IOS_DESTDIR)$(XAMARIN_WATCHOS_SDK)/include,$(MONOTOUCH_WATCH_MONO_PATH),watchOS,armv7k))
-endif
-$(eval $(call RunRegistrar,watchos,arm64_32,32,$(WATCH_SDK_VERSION),WatchOS,$(DEVICEWATCH64_32_CFLAGS),$(IOS_DESTDIR)$(XAMARIN_WATCHOS_SDK)/include,$(MONOTOUCH_WATCH_MONO_PATH),watchOS,arm64_32))
 $(eval $(call RunRegistrar,maccatalyst,x86_64,64,$(MACCATALYST_SDK_VERSION),MacCatalyst,$(MACCATALYST_X86_64_CFLAGS),$(IOS_DESTDIR)$(XAMARIN_MACCATALYST_SDK)/include,$(MONOTOUCH_MACCATALYST_MONO_PATH),MacCatalyst,maccatalyst-x64))
 $(eval $(call RunRegistrar,maccatalyst,arm64,64,$(MACCATALYST_SDK_VERSION),MacCatalyst,$(MACCATALYST_ARM64_CFLAGS),$(IOS_DESTDIR)$(XAMARIN_MACCATALYST_SDK)/include,$(MONOTOUCH_MACCATALYST_MONO_PATH),MacCatalyst,maccatalyst-arm64))
 
-ifdef IOS_SUPPORTS_32BIT_ARCHITECTURES
-%.registrar.ios.simulator.a:     %.registrar.ios.i386.a %.registrar.ios.x86_64.a
-else
 %.registrar.ios.simulator.a:     %.registrar.ios.x86_64.a
-endif
 	$(Q_LIPO) $(DEVICE_BIN_PATH)/lipo -create -output $@ $^
 
-ifdef IOS_SUPPORTS_32BIT_ARCHITECTURES
-%.registrar.ios.device.a:        %.registrar.ios.arm64.a %.registrar.ios.armv7.a %.registrar.ios.armv7s.a
-else
 %.registrar.ios.device.a:        %.registrar.ios.arm64.a
-endif
-	$(Q_LIPO) $(DEVICE_BIN_PATH)/lipo -create -output $@ $^
-
-ifdef WATCHOS_SUPPORTS_32BIT_DEVICE_ARCHITECTURES
-%.registrar.watchos.device.a:    %.registrar.watchos.armv7k.a %.registrar.watchos.arm64_32.a
-else
-%.registrar.watchos.device.a:    %.registrar.watchos.arm64_32.a
-endif
-	$(Q_LIPO) $(DEVICE_BIN_PATH)/lipo -create -output $@ $^
-
-ifdef WATCHOS_SUPPORTS_32BIT_SIMULATOR_ARCHITECTURES
-%.registrar.watchos.simulator.a: %.registrar.watchos.i386.a %.registrar.watchos.x86_64.a
-else
-%.registrar.watchos.simulator.a: %.registrar.watchos.x86_64.a
-endif
 	$(Q_LIPO) $(DEVICE_BIN_PATH)/lipo -create -output $@ $^
 
 .libs/Microsoft.iOS.registrar.ios-arm.a: .libs/Microsoft.iOS.registrar.armv7.a .libs/Microsoft.iOS.registrar.armv7s.a
@@ -327,88 +67,17 @@ endif
 TARGETS_DOTNET = \
 	$(foreach platform,$(DOTNET_PLATFORMS_MTOUCH),$(foreach rid,$(DOTNET_$(platform)_RUNTIME_IDENTIFIERS),$(DOTNET_DESTDIR)/$($(rid)_NUGET_RUNTIME_NAME)/runtimes/$(rid)/native/Microsoft.$(platform).registrar.a)) \
 
-TARGETS = \
-	$(IOS_DESTDIR)$(MONOTOUCH_PREFIX)/bin/mtouch                                          \
-	$(IOS_DESTDIR)$(MONOTOUCH_PREFIX)/lib/mtouch/mtouch.exe                               \
-	$(foreach launcher,$(SIMLAUNCHERS),$(IOS_DESTDIR)$(MONOTOUCH_PREFIX)/bin/$(launcher)) \
-	$(IOS_DESTDIR)$(MONOTOUCH_SIMULATOR_SDK)/lib/Xamarin.iOS.registrar.a                  \
-
-ifdef INCLUDE_DEVICE
-TARGETS += $(IOS_DESTDIR)$(MONOTOUCH_DEVICE_SDK)/lib/Xamarin.iOS.registrar.a
-endif
-
-ifdef INCLUDE_WATCH
-TARGETS += \
-	$(IOS_DESTDIR)$(XAMARIN_WATCHSIMULATOR_SDK)/lib/Xamarin.WatchOS.registrar.a \
-
-ifdef INCLUDE_DEVICE
-TARGETS += $(IOS_DESTDIR)$(XAMARIN_WATCHOS_SDK)/lib/Xamarin.WatchOS.registrar.a
-endif
-endif
-
-
-ifdef INCLUDE_TVOS
-TARGETS +=	\
-	$(IOS_DESTDIR)$(XAMARIN_TVSIMULATOR_SDK)/lib/Xamarin.TVOS.registrar.a       \
-
-ifdef INCLUDE_DEVICE
-TARGETS += $(IOS_DESTDIR)$(XAMARIN_TVOS_SDK)/lib/Xamarin.TVOS.registrar.a
-endif
-endif
-
 TARGET_DIRS_DOTNET = \
 	$(foreach platform,$(DOTNET_PLATFORMS_MTOUCH),$(foreach rid,$(DOTNET_$(platform)_RUNTIME_IDENTIFIERS),$(DOTNET_DESTDIR)/$($(rid)_NUGET_RUNTIME_NAME)/runtimes/$(rid)/native)) \
 
 TARGET_DIRS = \
 	.libs                                                        \
 	bin/Makefile                                                 \
-	$(IOS_DESTDIR)$(MONOTOUCH_PREFIX)/bin                        \
-	$(IOS_DESTDIR)$(MONOTOUCH_PREFIX)/lib                        \
-	$(IOS_DESTDIR)$(MONOTOUCH_PREFIX)/lib/mtouch                 \
-	$(IOS_DESTDIR)$(MONOTOUCH_PREFIX)/etc/mono/assemblies/System \
-	$(IOS_DESTDIR)$(MONOTOUCH_SIMULATOR_SDK)/lib                 \
-	$(IOS_DESTDIR)$(MONOTOUCH_DEVICE_SDK)/lib                    \
-	$(IOS_DESTDIR)$(XAMARIN_WATCHSIMULATOR_SDK)/lib              \
-	$(IOS_DESTDIR)$(XAMARIN_WATCHOS_SDK)/lib                     \
-	$(IOS_DESTDIR)$(XAMARIN_TVSIMULATOR_SDK)/lib                 \
-	$(IOS_DESTDIR)$(XAMARIN_TVOS_SDK)/lib                        \
 	$(TARGET_DIRS_DOTNET)                                        \
 
 $(TARGET_DIRS):
 	$(Q) mkdir -p $@
 
-$(IOS_DESTDIR)$(MONOTOUCH_PREFIX)/lib/mtouch/mtouch.exe: $(MTOUCH_DIR)/mtouch.exe | $(IOS_DESTDIR)$(MONOTOUCH_PREFIX)/lib/mtouch
-	$(Q) $(CP) $(dir $<)/*.exe $(dir $@)
-	$(Q) $(CP) $(dir $<)/*.dll $(dir $@)
-	$(Q) $(CP) $(dir $<)/*.pdb $(dir $@)
-
-$(IOS_DESTDIR)$(MONOTOUCH_PREFIX)/bin/mtouch: mtouch | $(IOS_DESTDIR)$(MONOTOUCH_PREFIX)/bin
-	$(Q) $(CP) $< $@
-
-$(IOS_DESTDIR)$(MONOTOUCH_PREFIX)/bin/%: % | $(IOS_DESTDIR)$(MONOTOUCH_PREFIX)/bin
-	$(Q) $(CP) $< $@
-
-$(IOS_DESTDIR)$(MONOTOUCH_PREFIX)/lib/%: % | $(IOS_DESTDIR)$(MONOTOUCH_PREFIX)/lib
-	$(Q) $(CP) $< $@
-
-$(IOS_DESTDIR)$(MONOTOUCH_SIMULATOR_SDK)/lib/%.registrar.a: %.registrar.ios.simulator.a | $(IOS_DESTDIR)$(MONOTOUCH_SIMULATOR_SDK)/lib
-	$(Q) $(CP) $< $@
-
-$(IOS_DESTDIR)$(XAMARIN_WATCHSIMULATOR_SDK)/lib/%.registrar.a: %.registrar.watchos.simulator.a | $(IOS_DESTDIR)$(XAMARIN_WATCHSIMULATOR_SDK)/lib
-	$(Q) $(CP) $< $@
-
-$(IOS_DESTDIR)$(XAMARIN_TVSIMULATOR_SDK)/lib/%.registrar.a: %.registrar.tvos.x86_64.a | $(IOS_DESTDIR)$(XAMARIN_TVSIMULATOR_SDK)/lib
-	$(Q) $(CP) $< $@
-
-$(IOS_DESTDIR)$(MONOTOUCH_DEVICE_SDK)/lib/%.registrar.a: %.registrar.ios.device.a | $(IOS_DESTDIR)$(MONOTOUCH_DEVICE_SDK)/lib
-	$(Q) $(CP) $< $@
-
-$(IOS_DESTDIR)$(XAMARIN_WATCHOS_SDK)/lib/%.registrar.a: %.registrar.watchos.device.a | $(IOS_DESTDIR)$(XAMARIN_WATCHOS_SDK)/lib
-	$(Q) $(CP) $< $@
-
-$(IOS_DESTDIR)$(XAMARIN_TVOS_SDK)/lib/%.registrar.a: %.registrar.tvos.arm64.a | $(IOS_DESTDIR)$(XAMARIN_TVOS_SDK)/lib
-	$(Q) $(CP) $< $@
-
 define InstallRegistrar
 $(DOTNET_DESTDIR)/$$($(2)_NUGET_RUNTIME_NAME)/runtimes/$(2)/native/Microsoft.$(1).registrar.a: .libs/Microsoft.$(1).registrar.$(rid).a | $(DOTNET_DESTDIR)/$($(2)_NUGET_RUNTIME_NAME)/runtimes/$(2)/native
 	$(Q) $(CP) $$< $$@
@@ -417,26 +86,11 @@ endef
 $(foreach platform,$(DOTNET_PLATFORMS_MTOUCH),$(foreach rid,$(DOTNET_$(platform)_RUNTIME_IDENTIFIERS),$(eval $(call InstallRegistrar,$(platform),$(rid)))))
 
 dotnet: $(TARGETS_DOTNET)
-ifdef ENABLE_DOTNET
 install-local:: $(TARGETS_DOTNET)
 all-local:: $(TARGETS_DOTNET)
-endif
-
-ifdef INCLUDE_XAMARIN_LEGACY
-ifdef INCLUDE_IOS
-install-local:: $(TARGETS)
-all-local:: $(TARGETS)
-endif
-endif
-
-install-mtouch: \
-	$(IOS_DESTDIR)$(MONOTOUCH_PREFIX)/bin/mtouch                                          \
-	$(IOS_DESTDIR)$(MONOTOUCH_PREFIX)/lib/mtouch/mtouch.exe                               \
 
 clean-local::
 	rm -Rf bin obj
-	rm -f $(SIMLAUNCHERS)
-	$(SYSTEM_MSBUILD) "/t:Clean" /p:Configuration=$(MTOUCH_CONF) *.csproj
 
 all-local:: verify-sorted-resx
 verify-sorted-resx:
@@ -456,7 +110,3 @@ clean-dotnet:
 
 include $(TOP)/mk/rules.mk
 include ../common/Make.common
-
-# make will automatically consider files created in chained implicit rules as temporary files, and delete them afterwards
-# marking those files as .SECONDARY will prevent that deletion.
-.SECONDARY: Xamarin.iOS.registrar.ios.simulator.a Xamarin.iOS.registrar.ios.device.a Xamarin.WatchOS.registrar.watchos.device.a