diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt
index 8e4928e087..2360515155 100644
--- a/src/core/CMakeLists.txt
+++ b/src/core/CMakeLists.txt
@@ -421,8 +421,6 @@ add_library(core STATIC
     hle/service/am/applet_data_broker.cpp
     hle/service/am/applet_data_broker.h
     hle/service/am/applet_manager.h
-    hle/service/am/applet_common_functions.cpp
-    hle/service/am/applet_common_functions.h
     hle/service/am/applet_message_queue.cpp
     hle/service/am/applet_message_queue.h
     hle/service/am/application_creator.cpp
@@ -465,6 +463,8 @@ add_library(core STATIC
     hle/service/am/self_controller.h
     hle/service/am/service/all_system_applet_proxies_service.cpp
     hle/service/am/service/all_system_applet_proxies_service.h
+    hle/service/am/service/applet_common_functions.cpp
+    hle/service/am/service/applet_common_functions.h
     hle/service/am/service/application_proxy_service.cpp
     hle/service/am/service/application_proxy_service.h
     hle/service/am/service/application_proxy.cpp
diff --git a/src/core/hle/service/am/applet_common_functions.cpp b/src/core/hle/service/am/service/applet_common_functions.cpp
similarity index 63%
rename from src/core/hle/service/am/applet_common_functions.cpp
rename to src/core/hle/service/am/service/applet_common_functions.cpp
index 130614ae54..0f29ab285b 100644
--- a/src/core/hle/service/am/applet_common_functions.cpp
+++ b/src/core/hle/service/am/service/applet_common_functions.cpp
@@ -2,8 +2,8 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "core/hle/service/am/applet.h"
-#include "core/hle/service/am/applet_common_functions.h"
-#include "core/hle/service/ipc_helpers.h"
+#include "core/hle/service/am/service/applet_common_functions.h"
+#include "core/hle/service/cmif_serialization.h"
 
 namespace Service::AM {
 
@@ -20,18 +20,18 @@ IAppletCommonFunctions::IAppletCommonFunctions(Core::System& system_,
         {40, nullptr, "GetDisplayLogicalResolution"},
         {42, nullptr, "SetDisplayMagnification"},
         {50, nullptr, "SetHomeButtonDoubleClickEnabled"},
-        {51, nullptr, "GetHomeButtonDoubleClickEnabled"},
+        {51, D<&IAppletCommonFunctions::GetHomeButtonDoubleClickEnabled>, "GetHomeButtonDoubleClickEnabled"},
         {52, nullptr, "IsHomeButtonShortPressedBlocked"},
         {60, nullptr, "IsVrModeCurtainRequired"},
         {61, nullptr, "IsSleepRequiredByHighTemperature"},
         {62, nullptr, "IsSleepRequiredByLowBattery"},
-        {70, &IAppletCommonFunctions::SetCpuBoostRequestPriority, "SetCpuBoostRequestPriority"},
+        {70, D<&IAppletCommonFunctions::SetCpuBoostRequestPriority>, "SetCpuBoostRequestPriority"},
         {80, nullptr, "SetHandlingCaptureButtonShortPressedMessageEnabledForApplet"},
         {81, nullptr, "SetHandlingCaptureButtonLongPressedMessageEnabledForApplet"},
         {90, nullptr, "OpenNamedChannelAsParent"},
         {91, nullptr, "OpenNamedChannelAsChild"},
         {100, nullptr, "SetApplicationCoreUsageMode"},
-        {300, &IAppletCommonFunctions::GetCurrentApplicationId, "GetCurrentApplicationId"},
+        {300, D<&IAppletCommonFunctions::GetCurrentApplicationId>, "GetCurrentApplicationId"},
     };
     // clang-format on
 
@@ -40,24 +40,24 @@ IAppletCommonFunctions::IAppletCommonFunctions(Core::System& system_,
 
 IAppletCommonFunctions::~IAppletCommonFunctions() = default;
 
-void IAppletCommonFunctions::SetCpuBoostRequestPriority(HLERequestContext& ctx) {
+Result IAppletCommonFunctions::GetHomeButtonDoubleClickEnabled(
+    Out<bool> out_home_button_double_click_enabled) {
     LOG_WARNING(Service_AM, "(STUBBED) called");
-
-    IPC::RequestParser rp{ctx};
-
-    std::scoped_lock lk{applet->lock};
-    applet->cpu_boost_request_priority = rp.Pop<s32>();
-
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(ResultSuccess);
+    *out_home_button_double_click_enabled = false;
+    R_SUCCEED();
 }
 
-void IAppletCommonFunctions::GetCurrentApplicationId(HLERequestContext& ctx) {
+Result IAppletCommonFunctions::SetCpuBoostRequestPriority(s32 priority) {
     LOG_WARNING(Service_AM, "(STUBBED) called");
+    std::scoped_lock lk{applet->lock};
+    applet->cpu_boost_request_priority = priority;
+    R_SUCCEED();
+}
 
-    IPC::ResponseBuilder rb{ctx, 4};
-    rb.Push(ResultSuccess);
-    rb.Push<u64>(system.GetApplicationProcessProgramID() & ~0xFFFULL);
+Result IAppletCommonFunctions::GetCurrentApplicationId(Out<u64> out_application_id) {
+    LOG_WARNING(Service_AM, "(STUBBED) called");
+    *out_application_id = system.GetApplicationProcessProgramID() & ~0xFFFULL;
+    R_SUCCEED();
 }
 
 } // namespace Service::AM
diff --git a/src/core/hle/service/am/applet_common_functions.h b/src/core/hle/service/am/service/applet_common_functions.h
similarity index 67%
rename from src/core/hle/service/am/applet_common_functions.h
rename to src/core/hle/service/am/service/applet_common_functions.h
index b86adf5cba..4424fc83d1 100644
--- a/src/core/hle/service/am/applet_common_functions.h
+++ b/src/core/hle/service/am/service/applet_common_functions.h
@@ -3,6 +3,7 @@
 
 #pragma once
 
+#include "core/hle/service/cmif_types.h"
 #include "core/hle/service/service.h"
 
 namespace Service::AM {
@@ -15,8 +16,9 @@ public:
     ~IAppletCommonFunctions() override;
 
 private:
-    void SetCpuBoostRequestPriority(HLERequestContext& ctx);
-    void GetCurrentApplicationId(HLERequestContext& ctx);
+    Result GetHomeButtonDoubleClickEnabled(Out<bool> out_home_button_double_click_enabled);
+    Result SetCpuBoostRequestPriority(s32 priority);
+    Result GetCurrentApplicationId(Out<u64> out_application_id);
 
     const std::shared_ptr<Applet> applet;
 };
diff --git a/src/core/hle/service/am/service/application_proxy.cpp b/src/core/hle/service/am/service/application_proxy.cpp
index d28321a4a7..b229606108 100644
--- a/src/core/hle/service/am/service/application_proxy.cpp
+++ b/src/core/hle/service/am/service/application_proxy.cpp
@@ -1,7 +1,6 @@
 // SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
-#include "core/hle/service/am/applet_common_functions.h"
 #include "core/hle/service/am/application_functions.h"
 #include "core/hle/service/am/common_state_getter.h"
 #include "core/hle/service/am/debug_functions.h"
@@ -10,6 +9,7 @@
 #include "core/hle/service/am/library_applet_self_accessor.h"
 #include "core/hle/service/am/process_winding_controller.h"
 #include "core/hle/service/am/self_controller.h"
+#include "core/hle/service/am/service/applet_common_functions.h"
 #include "core/hle/service/am/service/application_proxy.h"
 #include "core/hle/service/am/service/audio_controller.h"
 #include "core/hle/service/am/window_controller.h"
diff --git a/src/core/hle/service/am/service/library_applet_proxy.cpp b/src/core/hle/service/am/service/library_applet_proxy.cpp
index dd0f8ff11c..c4ea9392ac 100644
--- a/src/core/hle/service/am/service/library_applet_proxy.cpp
+++ b/src/core/hle/service/am/service/library_applet_proxy.cpp
@@ -1,7 +1,6 @@
 // SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
-#include "core/hle/service/am/applet_common_functions.h"
 #include "core/hle/service/am/common_state_getter.h"
 #include "core/hle/service/am/debug_functions.h"
 #include "core/hle/service/am/display_controller.h"
@@ -11,6 +10,7 @@
 #include "core/hle/service/am/library_applet_self_accessor.h"
 #include "core/hle/service/am/process_winding_controller.h"
 #include "core/hle/service/am/self_controller.h"
+#include "core/hle/service/am/service/applet_common_functions.h"
 #include "core/hle/service/am/service/audio_controller.h"
 #include "core/hle/service/am/service/library_applet_proxy.h"
 #include "core/hle/service/am/window_controller.h"
diff --git a/src/core/hle/service/am/service/system_applet_proxy.cpp b/src/core/hle/service/am/service/system_applet_proxy.cpp
index cc1f83fef9..c63b53ac87 100644
--- a/src/core/hle/service/am/service/system_applet_proxy.cpp
+++ b/src/core/hle/service/am/service/system_applet_proxy.cpp
@@ -1,7 +1,6 @@
 // SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
-#include "core/hle/service/am/applet_common_functions.h"
 #include "core/hle/service/am/application_creator.h"
 #include "core/hle/service/am/common_state_getter.h"
 #include "core/hle/service/am/debug_functions.h"
@@ -12,6 +11,7 @@
 #include "core/hle/service/am/library_applet_self_accessor.h"
 #include "core/hle/service/am/process_winding_controller.h"
 #include "core/hle/service/am/self_controller.h"
+#include "core/hle/service/am/service/applet_common_functions.h"
 #include "core/hle/service/am/service/audio_controller.h"
 #include "core/hle/service/am/service/system_applet_proxy.h"
 #include "core/hle/service/am/window_controller.h"