diff --git a/src/core/hle/service/nfp/nfp.cpp b/src/core/hle/service/nfp/nfp.cpp
index e8d3a6b539..cedade5c22 100644
--- a/src/core/hle/service/nfp/nfp.cpp
+++ b/src/core/hle/service/nfp/nfp.cpp
@@ -17,315 +17,255 @@ namespace ErrCodes {
 constexpr ResultCode ERR_NO_APPLICATION_AREA(ErrorModule::NFP, 152);
 } // namespace ErrCodes
 
+IUser::IUser(Module::Interface& nfp_interface_, Core::System& system_)
+    : ServiceFramework{system_, "NFP::IUser"}, nfp_interface{nfp_interface_},
+      deactivate_event{system.Kernel()}, availability_change_event{system.Kernel()} {
+    static const FunctionInfo functions[] = {
+        {0, &IUser::Initialize, "Initialize"},
+        {1, &IUser::Finalize, "Finalize"},
+        {2, &IUser::ListDevices, "ListDevices"},
+        {3, &IUser::StartDetection, "StartDetection"},
+        {4, &IUser::StopDetection, "StopDetection"},
+        {5, &IUser::Mount, "Mount"},
+        {6, &IUser::Unmount, "Unmount"},
+        {7, &IUser::OpenApplicationArea, "OpenApplicationArea"},
+        {8, &IUser::GetApplicationArea, "GetApplicationArea"},
+        {9, nullptr, "SetApplicationArea"},
+        {10, nullptr, "Flush"},
+        {11, nullptr, "Restore"},
+        {12, nullptr, "CreateApplicationArea"},
+        {13, &IUser::GetTagInfo, "GetTagInfo"},
+        {14, &IUser::GetRegisterInfo, "GetRegisterInfo"},
+        {15, &IUser::GetCommonInfo, "GetCommonInfo"},
+        {16, &IUser::GetModelInfo, "GetModelInfo"},
+        {17, &IUser::AttachActivateEvent, "AttachActivateEvent"},
+        {18, &IUser::AttachDeactivateEvent, "AttachDeactivateEvent"},
+        {19, &IUser::GetState, "GetState"},
+        {20, &IUser::GetDeviceState, "GetDeviceState"},
+        {21, &IUser::GetNpadId, "GetNpadId"},
+        {22, &IUser::GetApplicationAreaSize, "GetApplicationAreaSize"},
+        {23, &IUser::AttachAvailabilityChangeEvent, "AttachAvailabilityChangeEvent"},
+        {24, nullptr, "RecreateApplicationArea"},
+    };
+    RegisterHandlers(functions);
+
+    Kernel::KAutoObject::Create(std::addressof(deactivate_event));
+    Kernel::KAutoObject::Create(std::addressof(availability_change_event));
+
+    deactivate_event.Initialize("IUser:DeactivateEvent");
+    availability_change_event.Initialize("IUser:AvailabilityChangeEvent");
+}
+
+void IUser::Initialize(Kernel::HLERequestContext& ctx) {
+    LOG_DEBUG(Service_NFC, "called");
+
+    IPC::ResponseBuilder rb{ctx, 2, 0};
+    rb.Push(ResultSuccess);
+
+    state = State::Initialized;
+}
+
+void IUser::Finalize(Kernel::HLERequestContext& ctx) {
+    LOG_DEBUG(Service_NFP, "called");
+
+    device_state = DeviceState::Finalized;
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultSuccess);
+}
+
+void IUser::ListDevices(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const u32 array_size = rp.Pop<u32>();
+    LOG_DEBUG(Service_NFP, "called, array_size={}", array_size);
+
+    ctx.WriteBuffer(device_handle);
+
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(ResultSuccess);
+    rb.Push<u32>(1);
+}
+
+void IUser::StartDetection(Kernel::HLERequestContext& ctx) {
+    LOG_DEBUG(Service_NFP, "called");
+
+    if (device_state == DeviceState::Initialized || device_state == DeviceState::TagRemoved) {
+        device_state = DeviceState::SearchingForTag;
+    }
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultSuccess);
+}
+
+void IUser::StopDetection(Kernel::HLERequestContext& ctx) {
+    LOG_DEBUG(Service_NFP, "called");
+
+    switch (device_state) {
+    case DeviceState::TagFound:
+    case DeviceState::TagMounted:
+        deactivate_event.GetWritableEvent().Signal();
+        device_state = DeviceState::Initialized;
+        break;
+    case DeviceState::SearchingForTag:
+    case DeviceState::TagRemoved:
+        device_state = DeviceState::Initialized;
+        break;
+    default:
+        break;
+    }
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultSuccess);
+}
+
+void IUser::Mount(Kernel::HLERequestContext& ctx) {
+    LOG_DEBUG(Service_NFP, "called");
+
+    device_state = DeviceState::TagMounted;
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultSuccess);
+}
+
+void IUser::Unmount(Kernel::HLERequestContext& ctx) {
+    LOG_DEBUG(Service_NFP, "called");
+
+    device_state = DeviceState::TagFound;
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultSuccess);
+}
+
+void IUser::OpenApplicationArea(Kernel::HLERequestContext& ctx) {
+    LOG_WARNING(Service_NFP, "(STUBBED) called");
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ErrCodes::ERR_NO_APPLICATION_AREA);
+}
+
+void IUser::GetApplicationArea(Kernel::HLERequestContext& ctx) {
+    LOG_WARNING(Service_NFP, "(STUBBED) called");
+
+    // TODO(ogniK): Pull application area from amiibo
+
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(ResultSuccess);
+    rb.PushRaw<u32>(0); // This is from the GetCommonInfo stub
+}
+
+void IUser::GetTagInfo(Kernel::HLERequestContext& ctx) {
+    LOG_DEBUG(Service_NFP, "called");
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    const auto& amiibo = nfp_interface.GetAmiiboBuffer();
+    const TagInfo tag_info{
+        .uuid = amiibo.uuid,
+        .uuid_length = static_cast<u8>(amiibo.uuid.size()),
+        .protocol = 1, // TODO(ogniK): Figure out actual values
+        .tag_type = 2,
+    };
+    ctx.WriteBuffer(tag_info);
+    rb.Push(ResultSuccess);
+}
+
+void IUser::GetRegisterInfo(Kernel::HLERequestContext& ctx) {
+    LOG_WARNING(Service_NFP, "(STUBBED) called");
+
+    // TODO(ogniK): Pull Mii and owner data from amiibo
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultSuccess);
+}
+
+void IUser::GetCommonInfo(Kernel::HLERequestContext& ctx) {
+    LOG_WARNING(Service_NFP, "(STUBBED) called");
+
+    // TODO(ogniK): Pull common information from amiibo
+
+    CommonInfo common_info{};
+    common_info.application_area_size = 0;
+    ctx.WriteBuffer(common_info);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultSuccess);
+}
+
+void IUser::GetModelInfo(Kernel::HLERequestContext& ctx) {
+    LOG_DEBUG(Service_NFP, "called");
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    const auto& amiibo = nfp_interface.GetAmiiboBuffer();
+    ctx.WriteBuffer(amiibo.model_info);
+    rb.Push(ResultSuccess);
+}
+
+void IUser::AttachActivateEvent(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const u64 dev_handle = rp.Pop<u64>();
+    LOG_DEBUG(Service_NFP, "called, dev_handle=0x{:X}", dev_handle);
+
+    IPC::ResponseBuilder rb{ctx, 2, 1};
+    rb.Push(ResultSuccess);
+    rb.PushCopyObjects(nfp_interface.GetNFCEvent());
+    has_attached_handle = true;
+}
+
+void IUser::AttachDeactivateEvent(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const u64 dev_handle = rp.Pop<u64>();
+    LOG_DEBUG(Service_NFP, "called, dev_handle=0x{:X}", dev_handle);
+
+    IPC::ResponseBuilder rb{ctx, 2, 1};
+    rb.Push(ResultSuccess);
+    rb.PushCopyObjects(deactivate_event.GetReadableEvent());
+}
+
+void IUser::GetState(Kernel::HLERequestContext& ctx) {
+    LOG_DEBUG(Service_NFC, "called");
+
+    IPC::ResponseBuilder rb{ctx, 3, 0};
+    rb.Push(ResultSuccess);
+    rb.PushRaw<u32>(static_cast<u32>(state));
+}
+
+void IUser::GetDeviceState(Kernel::HLERequestContext& ctx) {
+    LOG_DEBUG(Service_NFP, "called");
+
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(ResultSuccess);
+    rb.Push<u32>(static_cast<u32>(device_state));
+}
+
+void IUser::GetNpadId(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const u64 dev_handle = rp.Pop<u64>();
+    LOG_DEBUG(Service_NFP, "called, dev_handle=0x{:X}", dev_handle);
+
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(ResultSuccess);
+    rb.Push<u32>(npad_id);
+}
+
+void IUser::GetApplicationAreaSize(Kernel::HLERequestContext& ctx) {
+    LOG_WARNING(Service_NFP, "(STUBBED) called");
+    // We don't need to worry about this since we can just open the file
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(ResultSuccess);
+    rb.PushRaw<u32>(0); // This is from the GetCommonInfo stub
+}
+
+void IUser::AttachAvailabilityChangeEvent(Kernel::HLERequestContext& ctx) {
+    LOG_WARNING(Service_NFP, "(STUBBED) called");
+
+    IPC::ResponseBuilder rb{ctx, 2, 1};
+    rb.Push(ResultSuccess);
+    rb.PushCopyObjects(availability_change_event.GetReadableEvent());
+}
+
 Module::Interface::Interface(std::shared_ptr<Module> module_, Core::System& system_,
                              const char* name)
-    : ServiceFramework{system_, name}, module{std::move(module_)}, service_context{system_,
-                                                                                   "NFP::IUser"} {
-    nfc_tag_load = service_context.CreateEvent("NFP::IUser:NFCTagDetected");
+    : ServiceFramework{system_, name}, nfc_tag_load{system.Kernel()}, module{std::move(module_)} {
+    Kernel::KAutoObject::Create(std::addressof(nfc_tag_load));
+    nfc_tag_load.Initialize("IUser:NFCTagDetected");
 }
 
-Module::Interface::~Interface() {
-    service_context.CloseEvent(nfc_tag_load);
-}
-
-class IUser final : public ServiceFramework<IUser> {
-public:
-    explicit IUser(Module::Interface& nfp_interface_, Core::System& system_,
-                   KernelHelpers::ServiceContext& service_context_)
-        : ServiceFramework{system_, "NFP::IUser"}, nfp_interface{nfp_interface_},
-          service_context{service_context_} {
-        static const FunctionInfo functions[] = {
-            {0, &IUser::Initialize, "Initialize"},
-            {1, &IUser::Finalize, "Finalize"},
-            {2, &IUser::ListDevices, "ListDevices"},
-            {3, &IUser::StartDetection, "StartDetection"},
-            {4, &IUser::StopDetection, "StopDetection"},
-            {5, &IUser::Mount, "Mount"},
-            {6, &IUser::Unmount, "Unmount"},
-            {7, &IUser::OpenApplicationArea, "OpenApplicationArea"},
-            {8, &IUser::GetApplicationArea, "GetApplicationArea"},
-            {9, nullptr, "SetApplicationArea"},
-            {10, nullptr, "Flush"},
-            {11, nullptr, "Restore"},
-            {12, nullptr, "CreateApplicationArea"},
-            {13, &IUser::GetTagInfo, "GetTagInfo"},
-            {14, &IUser::GetRegisterInfo, "GetRegisterInfo"},
-            {15, &IUser::GetCommonInfo, "GetCommonInfo"},
-            {16, &IUser::GetModelInfo, "GetModelInfo"},
-            {17, &IUser::AttachActivateEvent, "AttachActivateEvent"},
-            {18, &IUser::AttachDeactivateEvent, "AttachDeactivateEvent"},
-            {19, &IUser::GetState, "GetState"},
-            {20, &IUser::GetDeviceState, "GetDeviceState"},
-            {21, &IUser::GetNpadId, "GetNpadId"},
-            {22, &IUser::GetApplicationAreaSize, "GetApplicationAreaSize"},
-            {23, &IUser::AttachAvailabilityChangeEvent, "AttachAvailabilityChangeEvent"},
-            {24, nullptr, "RecreateApplicationArea"},
-        };
-        RegisterHandlers(functions);
-
-        deactivate_event = service_context.CreateEvent("NFP::IUser:DeactivateEvent");
-        availability_change_event =
-            service_context.CreateEvent("NFP::IUser:AvailabilityChangeEvent");
-    }
-
-    ~IUser() override {
-        service_context.CloseEvent(deactivate_event);
-        service_context.CloseEvent(availability_change_event);
-    }
-
-private:
-    struct TagInfo {
-        std::array<u8, 10> uuid;
-        u8 uuid_length; // TODO(ogniK): Figure out if this is actual the uuid length or does it
-                        // mean something else
-        std::array<u8, 0x15> padding_1;
-        u32_le protocol;
-        u32_le tag_type;
-        std::array<u8, 0x2c> padding_2;
-    };
-    static_assert(sizeof(TagInfo) == 0x54, "TagInfo is an invalid size");
-
-    enum class State : u32 {
-        NonInitialized = 0,
-        Initialized = 1,
-    };
-
-    enum class DeviceState : u32 {
-        Initialized = 0,
-        SearchingForTag = 1,
-        TagFound = 2,
-        TagRemoved = 3,
-        TagNearby = 4,
-        Unknown5 = 5,
-        Finalized = 6
-    };
-
-    struct CommonInfo {
-        u16_be last_write_year;
-        u8 last_write_month;
-        u8 last_write_day;
-        u16_be write_counter;
-        u16_be version;
-        u32_be application_area_size;
-        INSERT_PADDING_BYTES(0x34);
-    };
-    static_assert(sizeof(CommonInfo) == 0x40, "CommonInfo is an invalid size");
-
-    void Initialize(Kernel::HLERequestContext& ctx) {
-        LOG_DEBUG(Service_NFC, "called");
-
-        IPC::ResponseBuilder rb{ctx, 2, 0};
-        rb.Push(ResultSuccess);
-
-        state = State::Initialized;
-    }
-
-    void Finalize(Kernel::HLERequestContext& ctx) {
-        LOG_DEBUG(Service_NFP, "called");
-
-        device_state = DeviceState::Finalized;
-
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ResultSuccess);
-    }
-
-    void ListDevices(Kernel::HLERequestContext& ctx) {
-        IPC::RequestParser rp{ctx};
-        const u32 array_size = rp.Pop<u32>();
-        LOG_DEBUG(Service_NFP, "called, array_size={}", array_size);
-
-        ctx.WriteBuffer(device_handle);
-
-        IPC::ResponseBuilder rb{ctx, 3};
-        rb.Push(ResultSuccess);
-        rb.Push<u32>(1);
-    }
-
-    void StartDetection(Kernel::HLERequestContext& ctx) {
-        LOG_DEBUG(Service_NFP, "called");
-
-        if (device_state == DeviceState::Initialized || device_state == DeviceState::TagRemoved) {
-            device_state = DeviceState::SearchingForTag;
-        }
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ResultSuccess);
-    }
-
-    void StopDetection(Kernel::HLERequestContext& ctx) {
-        LOG_DEBUG(Service_NFP, "called");
-
-        switch (device_state) {
-        case DeviceState::TagFound:
-        case DeviceState::TagNearby:
-            deactivate_event->GetWritableEvent().Signal();
-            device_state = DeviceState::Initialized;
-            break;
-        case DeviceState::SearchingForTag:
-        case DeviceState::TagRemoved:
-            device_state = DeviceState::Initialized;
-            break;
-        default:
-            break;
-        }
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ResultSuccess);
-    }
-
-    void Mount(Kernel::HLERequestContext& ctx) {
-        LOG_DEBUG(Service_NFP, "called");
-
-        device_state = DeviceState::TagNearby;
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ResultSuccess);
-    }
-
-    void Unmount(Kernel::HLERequestContext& ctx) {
-        LOG_DEBUG(Service_NFP, "called");
-
-        device_state = DeviceState::TagFound;
-
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ResultSuccess);
-    }
-
-    void OpenApplicationArea(Kernel::HLERequestContext& ctx) {
-        LOG_WARNING(Service_NFP, "(STUBBED) called");
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ErrCodes::ERR_NO_APPLICATION_AREA);
-    }
-
-    void GetApplicationArea(Kernel::HLERequestContext& ctx) {
-        LOG_WARNING(Service_NFP, "(STUBBED) called");
-
-        // TODO(ogniK): Pull application area from amiibo
-
-        IPC::ResponseBuilder rb{ctx, 3};
-        rb.Push(ResultSuccess);
-        rb.PushRaw<u32>(0); // This is from the GetCommonInfo stub
-    }
-
-    void GetTagInfo(Kernel::HLERequestContext& ctx) {
-        LOG_DEBUG(Service_NFP, "called");
-
-        IPC::ResponseBuilder rb{ctx, 2};
-        const auto& amiibo = nfp_interface.GetAmiiboBuffer();
-        const TagInfo tag_info{
-            .uuid = amiibo.uuid,
-            .uuid_length = static_cast<u8>(amiibo.uuid.size()),
-            .padding_1 = {},
-            .protocol = 1, // TODO(ogniK): Figure out actual values
-            .tag_type = 2,
-            .padding_2 = {},
-        };
-        ctx.WriteBuffer(tag_info);
-        rb.Push(ResultSuccess);
-    }
-
-    void GetRegisterInfo(Kernel::HLERequestContext& ctx) {
-        LOG_WARNING(Service_NFP, "(STUBBED) called");
-
-        // TODO(ogniK): Pull Mii and owner data from amiibo
-
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ResultSuccess);
-    }
-
-    void GetCommonInfo(Kernel::HLERequestContext& ctx) {
-        LOG_WARNING(Service_NFP, "(STUBBED) called");
-
-        // TODO(ogniK): Pull common information from amiibo
-
-        CommonInfo common_info{};
-        common_info.application_area_size = 0;
-        ctx.WriteBuffer(common_info);
-
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ResultSuccess);
-    }
-
-    void GetModelInfo(Kernel::HLERequestContext& ctx) {
-        LOG_DEBUG(Service_NFP, "called");
-
-        IPC::ResponseBuilder rb{ctx, 2};
-        const auto& amiibo = nfp_interface.GetAmiiboBuffer();
-        ctx.WriteBuffer(amiibo.model_info);
-        rb.Push(ResultSuccess);
-    }
-
-    void AttachActivateEvent(Kernel::HLERequestContext& ctx) {
-        IPC::RequestParser rp{ctx};
-        const u64 dev_handle = rp.Pop<u64>();
-        LOG_DEBUG(Service_NFP, "called, dev_handle=0x{:X}", dev_handle);
-
-        IPC::ResponseBuilder rb{ctx, 2, 1};
-        rb.Push(ResultSuccess);
-        rb.PushCopyObjects(nfp_interface.GetNFCEvent());
-        has_attached_handle = true;
-    }
-
-    void AttachDeactivateEvent(Kernel::HLERequestContext& ctx) {
-        IPC::RequestParser rp{ctx};
-        const u64 dev_handle = rp.Pop<u64>();
-        LOG_DEBUG(Service_NFP, "called, dev_handle=0x{:X}", dev_handle);
-
-        IPC::ResponseBuilder rb{ctx, 2, 1};
-        rb.Push(ResultSuccess);
-        rb.PushCopyObjects(deactivate_event.GetReadableEvent());
-    }
-
-    void GetState(Kernel::HLERequestContext& ctx) {
-        LOG_DEBUG(Service_NFC, "called");
-
-        IPC::ResponseBuilder rb{ctx, 3, 0};
-        rb.Push(ResultSuccess);
-        rb.PushRaw<u32>(static_cast<u32>(state));
-    }
-
-    void GetDeviceState(Kernel::HLERequestContext& ctx) {
-        LOG_DEBUG(Service_NFP, "called");
-
-        IPC::ResponseBuilder rb{ctx, 3};
-        rb.Push(ResultSuccess);
-        rb.Push<u32>(static_cast<u32>(device_state));
-    }
-
-    void GetNpadId(Kernel::HLERequestContext& ctx) {
-        IPC::RequestParser rp{ctx};
-        const u64 dev_handle = rp.Pop<u64>();
-        LOG_DEBUG(Service_NFP, "called, dev_handle=0x{:X}", dev_handle);
-
-        IPC::ResponseBuilder rb{ctx, 3};
-        rb.Push(ResultSuccess);
-        rb.Push<u32>(npad_id);
-    }
-
-    void GetApplicationAreaSize(Kernel::HLERequestContext& ctx) {
-        LOG_WARNING(Service_NFP, "(STUBBED) called");
-        // We don't need to worry about this since we can just open the file
-        IPC::ResponseBuilder rb{ctx, 3};
-        rb.Push(ResultSuccess);
-        rb.PushRaw<u32>(0); // This is from the GetCommonInfo stub
-    }
-
-    void AttachAvailabilityChangeEvent(Kernel::HLERequestContext& ctx) {
-        LOG_WARNING(Service_NFP, "(STUBBED) called");
-
-        IPC::ResponseBuilder rb{ctx, 2, 1};
-        rb.Push(ResultSuccess);
-        rb.PushCopyObjects(availability_change_event.GetReadableEvent());
-    }
-
-    Module::Interface& nfp_interface;
-    KernelHelpers::ServiceContext& service_context;
-
-    bool has_attached_handle{};
-    const u64 device_handle{0}; // Npad device 1
-    const u32 npad_id{0};       // Player 1 controller
-    State state{State::NonInitialized};
-    DeviceState device_state{DeviceState::Initialized};
-    Kernel::KEvent* deactivate_event;
-    Kernel::KEvent* availability_change_event;
-};
+Module::Interface::~Interface() = default;
 
 void Module::Interface::CreateUserInterface(Kernel::HLERequestContext& ctx) {
     LOG_DEBUG(Service_NFP, "called");
diff --git a/src/core/hle/service/nfp/nfp.h b/src/core/hle/service/nfp/nfp.h
index 95c127efb5..8d9db880a1 100644
--- a/src/core/hle/service/nfp/nfp.h
+++ b/src/core/hle/service/nfp/nfp.h
@@ -8,6 +8,8 @@
 #include <vector>
 
 #include "core/hle/service/kernel_helpers.h"
+#include "core/hle/kernel/k_event.h"
+#include "core/hle/service/mii/manager.h"
 #include "core/hle/service/service.h"
 
 namespace Kernel {
@@ -16,6 +18,106 @@ class KEvent;
 
 namespace Service::NFP {
 
+enum class ServiceType : u32 {
+    User = 0,
+    Debug = 1,
+    System = 2,
+};
+
+enum class State : u32 {
+    NonInitialized = 0,
+    Initialized = 1,
+};
+
+enum class DeviceState : u32 {
+    Initialized = 0,
+    SearchingForTag = 1,
+    TagFound = 2,
+    TagRemoved = 3,
+    TagMounted = 4,
+    Unaviable = 5,
+    Finalized = 6
+};
+
+enum class MountTarget : u32 {
+    Rom = 1,
+    Ram = 2,
+    All = 3,
+};
+
+struct TagInfo {
+    std::array<u8, 10> uuid;
+    u8 uuid_length;
+    INSERT_PADDING_BYTES(0x15);
+    u32_le protocol;
+    u32_le tag_type;
+    INSERT_PADDING_BYTES(0x2c);
+};
+static_assert(sizeof(TagInfo) == 0x54, "TagInfo is an invalid size");
+
+struct CommonInfo {
+    u16_be last_write_year;
+    u8 last_write_month;
+    u8 last_write_day;
+    u16_be write_counter;
+    u16_be version;
+    u32_be application_area_size;
+    INSERT_PADDING_BYTES(0x34);
+};
+static_assert(sizeof(CommonInfo) == 0x40, "CommonInfo is an invalid size");
+
+struct ModelInfo {
+    std::array<u8, 0x8> ammibo_id;
+    INSERT_PADDING_BYTES(0x38);
+};
+static_assert(sizeof(ModelInfo) == 0x40, "ModelInfo is an invalid size");
+
+struct RegisterInfo {
+    Service::Mii::MiiInfo mii;
+    u16_be first_write_year;
+    u8 first_write_month;
+    u8 first_write_day;
+    std::array<u8, 11> amiibo_name;
+    INSERT_PADDING_BYTES(0x99);
+};
+// static_assert(sizeof(RegisterInfo) == 0x106, "RegisterInfo is an invalid size");
+
+class IUser final : public ServiceFramework<IUser> {
+public:
+    explicit IUser(Module::Interface& nfp_interface_, Core::System& system_);
+
+private:
+    void Initialize(Kernel::HLERequestContext& ctx);
+    void Finalize(Kernel::HLERequestContext& ctx);
+    void ListDevices(Kernel::HLERequestContext& ctx);
+    void StartDetection(Kernel::HLERequestContext& ctx);
+    void StopDetection(Kernel::HLERequestContext& ctx);
+    void Mount(Kernel::HLERequestContext& ctx);
+    void Unmount(Kernel::HLERequestContext& ctx);
+    void OpenApplicationArea(Kernel::HLERequestContext& ctx);
+    void GetApplicationArea(Kernel::HLERequestContext& ctx);
+    void GetTagInfo(Kernel::HLERequestContext& ctx);
+    void GetRegisterInfo(Kernel::HLERequestContext& ctx);
+    void GetCommonInfo(Kernel::HLERequestContext& ctx);
+    void GetModelInfo(Kernel::HLERequestContext& ctx);
+    void AttachActivateEvent(Kernel::HLERequestContext& ctx);
+    void AttachDeactivateEvent(Kernel::HLERequestContext& ctx);
+    void GetState(Kernel::HLERequestContext& ctx);
+    void GetDeviceState(Kernel::HLERequestContext& ctx);
+    void GetNpadId(Kernel::HLERequestContext& ctx);
+    void GetApplicationAreaSize(Kernel::HLERequestContext& ctx);
+    void AttachAvailabilityChangeEvent(Kernel::HLERequestContext& ctx);
+
+    bool has_attached_handle{};
+    const u64 device_handle{0}; // Npad device 1
+    const u32 npad_id{0};       // Player 1 controller
+    State state{State::NonInitialized};
+    DeviceState device_state{DeviceState::Initialized};
+    Module::Interface& nfp_interface;
+    Kernel::KEvent deactivate_event;
+    Kernel::KEvent availability_change_event;
+};
+
 class Module final {
 public:
     class Interface : public ServiceFramework<Interface> {