94 files changed, 2148 insertions, 948 deletions

diff --git a/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/input/model/PlayerInput.kt b/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/input/model/PlayerInput.kt
index d35de80c4..a84ac77a2 100644
--- a/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/input/model/PlayerInput.kt
+++ b/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/input/model/PlayerInput.kt
@@ -64,17 +64,17 @@ data class PlayerInput(
     fun hasMapping(): Boolean {
         var hasMapping = false
         buttons.forEach {
-            if (it != "[empty]") {
+            if (it != "[empty]" && it.isNotEmpty()) {
                 hasMapping = true
             }
         }
         analogs.forEach {
-            if (it != "[empty]") {
+            if (it != "[empty]" && it.isNotEmpty()) {
                 hasMapping = true
             }
         }
         motions.forEach {
-            if (it != "[empty]") {
+            if (it != "[empty]" && it.isNotEmpty()) {
                 hasMapping = true
             }
         }
diff --git a/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/StringSetting.kt b/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/StringSetting.kt
index a0d8cfede..6f16cf5b1 100644
--- a/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/StringSetting.kt
+++ b/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/StringSetting.kt
@@ -6,7 +6,8 @@ package org.yuzu.yuzu_emu.features.settings.model
 import org.yuzu.yuzu_emu.utils.NativeConfig
 
 enum class StringSetting(override val key: String) : AbstractStringSetting {
-    DRIVER_PATH("driver_path");
+    DRIVER_PATH("driver_path"),
+    DEVICE_NAME("device_name");
 
     override fun getString(needsGlobal: Boolean): String = NativeConfig.getString(key, needsGlobal)
 
diff --git a/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/view/SettingsItem.kt b/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/view/SettingsItem.kt
index 8f724835e..5fdf98318 100644
--- a/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/view/SettingsItem.kt
+++ b/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/view/SettingsItem.kt
@@ -16,6 +16,7 @@ import org.yuzu.yuzu_emu.features.settings.model.ByteSetting
 import org.yuzu.yuzu_emu.features.settings.model.IntSetting
 import org.yuzu.yuzu_emu.features.settings.model.LongSetting
 import org.yuzu.yuzu_emu.features.settings.model.ShortSetting
+import org.yuzu.yuzu_emu.features.settings.model.StringSetting
 import org.yuzu.yuzu_emu.utils.NativeConfig
 
 /**
@@ -75,6 +76,9 @@ abstract class SettingsItem(
         get() = NativeLibrary.isRunning() && !setting.global &&
             !NativeConfig.isPerGameConfigLoaded()
 
+    val clearable: Boolean
+        get() = !setting.global && NativeConfig.isPerGameConfigLoaded()
+
     companion object {
         const val TYPE_HEADER = 0
         const val TYPE_SWITCH = 1
@@ -87,6 +91,7 @@ abstract class SettingsItem(
         const val TYPE_INPUT = 8
         const val TYPE_INT_SINGLE_CHOICE = 9
         const val TYPE_INPUT_PROFILE = 10
+        const val TYPE_STRING_INPUT = 11
 
         const val FASTMEM_COMBINED = "fastmem_combined"
 
@@ -105,6 +110,7 @@ abstract class SettingsItem(
 
         // List of all general
         val settingsItems = HashMap<String, SettingsItem>().apply {
+            put(StringInputSetting(StringSetting.DEVICE_NAME, titleId = R.string.device_name))
             put(
                 SwitchSetting(
                     BooleanSetting.RENDERER_USE_SPEED_LIMIT,
diff --git a/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/view/StringInputSetting.kt b/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/view/StringInputSetting.kt
new file mode 100644
index 000000000..1eb999416
--- /dev/null
+++ b/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/view/StringInputSetting.kt
@@ -0,0 +1,22 @@
+// SPDX-FileCopyrightText: 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+package org.yuzu.yuzu_emu.features.settings.model.view
+
+import androidx.annotation.StringRes
+import org.yuzu.yuzu_emu.features.settings.model.AbstractStringSetting
+
+class StringInputSetting(
+    setting: AbstractStringSetting,
+    @StringRes titleId: Int = 0,
+    titleString: String = "",
+    @StringRes descriptionId: Int = 0,
+    descriptionString: String = ""
+) : SettingsItem(setting, titleId, titleString, descriptionId, descriptionString) {
+    override val type = TYPE_STRING_INPUT
+
+    fun getSelectedValue(needsGlobal: Boolean = false) = setting.getValueAsString(needsGlobal)
+
+    fun setSelectedValue(selection: String) =
+        (setting as AbstractStringSetting).setString(selection)
+}
diff --git a/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/SettingsAdapter.kt b/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/SettingsAdapter.kt
index 45c8faa10..500ac6e66 100644
--- a/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/SettingsAdapter.kt
+++ b/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/SettingsAdapter.kt
@@ -85,6 +85,10 @@ class SettingsAdapter(
                 InputProfileViewHolder(ListItemSettingBinding.inflate(inflater), this)
             }
 
+            SettingsItem.TYPE_STRING_INPUT -> {
+                StringInputViewHolder(ListItemSettingBinding.inflate(inflater), this)
+            }
+
             else -> {
                 HeaderViewHolder(ListItemSettingsHeaderBinding.inflate(inflater), this)
             }
@@ -392,6 +396,15 @@ class SettingsAdapter(
         popup.show()
     }
 
+    fun onStringInputClick(item: StringInputSetting, position: Int) {
+        SettingsDialogFragment.newInstance(
+            settingsViewModel,
+            item,
+            SettingsItem.TYPE_STRING_INPUT,
+            position
+        ).show(fragment.childFragmentManager, SettingsDialogFragment.TAG)
+    }
+
     fun onLongClick(item: SettingsItem, position: Int): Boolean {
         SettingsDialogFragment.newInstance(
             settingsViewModel,
diff --git a/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/SettingsDialogFragment.kt b/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/SettingsDialogFragment.kt
index a81ff6b1a..7f562a1f4 100644
--- a/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/SettingsDialogFragment.kt
+++ b/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/SettingsDialogFragment.kt
@@ -14,6 +14,7 @@ import androidx.fragment.app.activityViewModels
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import com.google.android.material.slider.Slider
 import org.yuzu.yuzu_emu.R
+import org.yuzu.yuzu_emu.databinding.DialogEditTextBinding
 import org.yuzu.yuzu_emu.databinding.DialogSliderBinding
 import org.yuzu.yuzu_emu.features.input.NativeInput
 import org.yuzu.yuzu_emu.features.input.model.AnalogDirection
@@ -23,6 +24,7 @@ import org.yuzu.yuzu_emu.features.settings.model.view.IntSingleChoiceSetting
 import org.yuzu.yuzu_emu.features.settings.model.view.SettingsItem
 import org.yuzu.yuzu_emu.features.settings.model.view.SingleChoiceSetting
 import org.yuzu.yuzu_emu.features.settings.model.view.SliderSetting
+import org.yuzu.yuzu_emu.features.settings.model.view.StringInputSetting
 import org.yuzu.yuzu_emu.features.settings.model.view.StringSingleChoiceSetting
 import org.yuzu.yuzu_emu.utils.ParamPackage
 import org.yuzu.yuzu_emu.utils.collect
@@ -37,6 +39,7 @@ class SettingsDialogFragment : DialogFragment(), DialogInterface.OnClickListener
     private val settingsViewModel: SettingsViewModel by activityViewModels()
 
     private lateinit var sliderBinding: DialogSliderBinding
+    private lateinit var stringInputBinding: DialogEditTextBinding
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
@@ -131,6 +134,18 @@ class SettingsDialogFragment : DialogFragment(), DialogInterface.OnClickListener
                     .create()
             }
 
+            SettingsItem.TYPE_STRING_INPUT -> {
+                stringInputBinding = DialogEditTextBinding.inflate(layoutInflater)
+                val item = settingsViewModel.clickedItem as StringInputSetting
+                stringInputBinding.editText.setText(item.getSelectedValue())
+                MaterialAlertDialogBuilder(requireContext())
+                    .setTitle(item.title)
+                    .setView(stringInputBinding.root)
+                    .setPositiveButton(android.R.string.ok, this)
+                    .setNegativeButton(android.R.string.cancel, defaultCancelListener)
+                    .create()
+            }
+
             SettingsItem.TYPE_STRING_SINGLE_CHOICE -> {
                 val item = settingsViewModel.clickedItem as StringSingleChoiceSetting
                 MaterialAlertDialogBuilder(requireContext())
@@ -158,6 +173,7 @@ class SettingsDialogFragment : DialogFragment(), DialogInterface.OnClickListener
     ): View? {
         return when (type) {
             SettingsItem.TYPE_SLIDER -> sliderBinding.root
+            SettingsItem.TYPE_STRING_INPUT -> stringInputBinding.root
             else -> super.onCreateView(inflater, container, savedInstanceState)
         }
     }
@@ -200,6 +216,13 @@ class SettingsDialogFragment : DialogFragment(), DialogInterface.OnClickListener
                 val sliderSetting = settingsViewModel.clickedItem as SliderSetting
                 sliderSetting.setSelectedValue(settingsViewModel.sliderProgress.value)
             }
+
+            is StringInputSetting -> {
+                val stringInputSetting = settingsViewModel.clickedItem as StringInputSetting
+                stringInputSetting.setSelectedValue(
+                    (stringInputBinding.editText.text ?: "").toString()
+                )
+            }
         }
         closeDialog()
     }
diff --git a/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/SettingsFragmentPresenter.kt b/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/SettingsFragmentPresenter.kt
index e491c29a2..3ea5f5008 100644
--- a/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/SettingsFragmentPresenter.kt
+++ b/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/SettingsFragmentPresenter.kt
@@ -23,6 +23,7 @@ import org.yuzu.yuzu_emu.features.settings.model.LongSetting
 import org.yuzu.yuzu_emu.features.settings.model.Settings
 import org.yuzu.yuzu_emu.features.settings.model.Settings.MenuTag
 import org.yuzu.yuzu_emu.features.settings.model.ShortSetting
+import org.yuzu.yuzu_emu.features.settings.model.StringSetting
 import org.yuzu.yuzu_emu.features.settings.model.view.*
 import org.yuzu.yuzu_emu.utils.InputHandler
 import org.yuzu.yuzu_emu.utils.NativeConfig
@@ -153,6 +154,7 @@ class SettingsFragmentPresenter(
 
     private fun addSystemSettings(sl: ArrayList<SettingsItem>) {
         sl.apply {
+            add(StringSetting.DEVICE_NAME.key)
             add(BooleanSetting.RENDERER_USE_SPEED_LIMIT.key)
             add(ShortSetting.RENDERER_SPEED_LIMIT.key)
             add(BooleanSetting.USE_DOCKED_MODE.key)
@@ -778,7 +780,7 @@ class SettingsFragmentPresenter(
         playerIndex: Int,
         paramName: String,
         stick: NativeAnalog,
-        defaultValue: Int
+        defaultValue: Float
     ): AbstractIntSetting =
         object : AbstractIntSetting {
             val params get() = NativeInput.getStickParam(playerIndex, stick)
@@ -786,7 +788,7 @@ class SettingsFragmentPresenter(
             override val key = ""
 
             override fun getInt(needsGlobal: Boolean): Int =
-                (params.get(paramName, 0.15f) * 100).toInt()
+                (params.get(paramName, defaultValue) * 100).toInt()
 
             override fun setInt(value: Int) {
                 val tempParams = params
@@ -794,12 +796,12 @@ class SettingsFragmentPresenter(
                 NativeInput.setStickParam(playerIndex, stick, tempParams)
             }
 
-            override val defaultValue = defaultValue
+            override val defaultValue = (defaultValue * 100).toInt()
 
             override fun getValueAsString(needsGlobal: Boolean): String =
                 getInt(needsGlobal).toString()
 
-            override fun reset() = setInt(defaultValue)
+            override fun reset() = setInt(this.defaultValue)
         }
 
     private fun getExtraStickSettings(
@@ -809,11 +811,11 @@ class SettingsFragmentPresenter(
         val stickIsController =
             NativeInput.isController(NativeInput.getStickParam(playerIndex, nativeAnalog))
         val modifierRangeSetting =
-            getStickIntSettingFromParam(playerIndex, "modifier_scale", nativeAnalog, 50)
+            getStickIntSettingFromParam(playerIndex, "modifier_scale", nativeAnalog, 0.5f)
         val stickRangeSetting =
-            getStickIntSettingFromParam(playerIndex, "range", nativeAnalog, 95)
+            getStickIntSettingFromParam(playerIndex, "range", nativeAnalog, 0.95f)
         val stickDeadzoneSetting =
-            getStickIntSettingFromParam(playerIndex, "deadzone", nativeAnalog, 15)
+            getStickIntSettingFromParam(playerIndex, "deadzone", nativeAnalog, 0.15f)
 
         val out = mutableListOf<SettingsItem>().apply {
             if (stickIsController) {
diff --git a/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/viewholder/DateTimeViewHolder.kt b/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/viewholder/DateTimeViewHolder.kt
index 367db7fd2..0309fad59 100644
--- a/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/viewholder/DateTimeViewHolder.kt
+++ b/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/viewholder/DateTimeViewHolder.kt
@@ -13,7 +13,6 @@ import org.yuzu.yuzu_emu.databinding.ListItemSettingBinding
 import org.yuzu.yuzu_emu.features.settings.model.view.DateTimeSetting
 import org.yuzu.yuzu_emu.features.settings.model.view.SettingsItem
 import org.yuzu.yuzu_emu.features.settings.ui.SettingsAdapter
-import org.yuzu.yuzu_emu.utils.NativeConfig
 import org.yuzu.yuzu_emu.utils.ViewUtils.setVisible
 
 class DateTimeViewHolder(val binding: ListItemSettingBinding, adapter: SettingsAdapter) :
@@ -32,9 +31,7 @@ class DateTimeViewHolder(val binding: ListItemSettingBinding, adapter: SettingsA
         val dateFormatter = DateTimeFormatter.ofLocalizedDateTime(FormatStyle.MEDIUM)
         binding.textSettingValue.text = dateFormatter.format(zonedTime)
 
-        binding.buttonClear.setVisible(
-            !setting.setting.global || NativeConfig.isPerGameConfigLoaded()
-        )
+        binding.buttonClear.setVisible(setting.clearable)
         binding.buttonClear.setOnClickListener {
             adapter.onClearClick(setting, bindingAdapterPosition)
         }
diff --git a/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/viewholder/SingleChoiceViewHolder.kt b/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/viewholder/SingleChoiceViewHolder.kt
index e2fe0b072..489f55455 100644
--- a/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/viewholder/SingleChoiceViewHolder.kt
+++ b/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/viewholder/SingleChoiceViewHolder.kt
@@ -10,7 +10,6 @@ import org.yuzu.yuzu_emu.features.settings.model.view.SettingsItem
 import org.yuzu.yuzu_emu.features.settings.model.view.SingleChoiceSetting
 import org.yuzu.yuzu_emu.features.settings.model.view.StringSingleChoiceSetting
 import org.yuzu.yuzu_emu.features.settings.ui.SettingsAdapter
-import org.yuzu.yuzu_emu.utils.NativeConfig
 import org.yuzu.yuzu_emu.utils.ViewUtils.setVisible
 
 class SingleChoiceViewHolder(val binding: ListItemSettingBinding, adapter: SettingsAdapter) :
@@ -48,9 +47,7 @@ class SingleChoiceViewHolder(val binding: ListItemSettingBinding, adapter: Setti
             binding.textSettingValue.setVisible(false)
         }
 
-        binding.buttonClear.setVisible(
-            !setting.setting.global || NativeConfig.isPerGameConfigLoaded()
-        )
+        binding.buttonClear.setVisible(setting.clearable)
         binding.buttonClear.setOnClickListener {
             adapter.onClearClick(setting, bindingAdapterPosition)
         }
diff --git a/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/viewholder/SliderViewHolder.kt b/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/viewholder/SliderViewHolder.kt
index a37b59b44..90a7138cb 100644
--- a/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/viewholder/SliderViewHolder.kt
+++ b/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/viewholder/SliderViewHolder.kt
@@ -9,7 +9,6 @@ import org.yuzu.yuzu_emu.databinding.ListItemSettingBinding
 import org.yuzu.yuzu_emu.features.settings.model.view.SettingsItem
 import org.yuzu.yuzu_emu.features.settings.model.view.SliderSetting
 import org.yuzu.yuzu_emu.features.settings.ui.SettingsAdapter
-import org.yuzu.yuzu_emu.utils.NativeConfig
 import org.yuzu.yuzu_emu.utils.ViewUtils.setVisible
 
 class SliderViewHolder(val binding: ListItemSettingBinding, adapter: SettingsAdapter) :
@@ -28,9 +27,7 @@ class SliderViewHolder(val binding: ListItemSettingBinding, adapter: SettingsAda
             setting.units
         )
 
-        binding.buttonClear.setVisible(
-            !setting.setting.global || NativeConfig.isPerGameConfigLoaded()
-        )
+        binding.buttonClear.setVisible(setting.clearable)
         binding.buttonClear.setOnClickListener {
             adapter.onClearClick(setting, bindingAdapterPosition)
         }
diff --git a/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/viewholder/StringInputViewHolder.kt b/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/viewholder/StringInputViewHolder.kt
new file mode 100644
index 000000000..a4fd36f62
--- /dev/null
+++ b/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/viewholder/StringInputViewHolder.kt
@@ -0,0 +1,45 @@
+// SPDX-FileCopyrightText: 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+package org.yuzu.yuzu_emu.features.settings.ui.viewholder
+
+import android.view.View
+import org.yuzu.yuzu_emu.databinding.ListItemSettingBinding
+import org.yuzu.yuzu_emu.features.settings.model.view.SettingsItem
+import org.yuzu.yuzu_emu.features.settings.model.view.StringInputSetting
+import org.yuzu.yuzu_emu.features.settings.ui.SettingsAdapter
+import org.yuzu.yuzu_emu.utils.ViewUtils.setVisible
+
+class StringInputViewHolder(val binding: ListItemSettingBinding, adapter: SettingsAdapter) :
+    SettingViewHolder(binding.root, adapter) {
+    private lateinit var setting: StringInputSetting
+
+    override fun bind(item: SettingsItem) {
+        setting = item as StringInputSetting
+        binding.textSettingName.text = setting.title
+        binding.textSettingDescription.setVisible(setting.description.isNotEmpty())
+        binding.textSettingDescription.text = setting.description
+        binding.textSettingValue.setVisible(true)
+        binding.textSettingValue.text = setting.getSelectedValue()
+
+        binding.buttonClear.setVisible(setting.clearable)
+        binding.buttonClear.setOnClickListener {
+            adapter.onClearClick(setting, bindingAdapterPosition)
+        }
+
+        setStyle(setting.isEditable, binding)
+    }
+
+    override fun onClick(clicked: View) {
+        if (setting.isEditable) {
+            adapter.onStringInputClick(setting, bindingAdapterPosition)
+        }
+    }
+
+    override fun onLongClick(clicked: View): Boolean {
+        if (setting.isEditable) {
+            return adapter.onLongClick(setting, bindingAdapterPosition)
+        }
+        return false
+    }
+}
diff --git a/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/viewholder/SwitchSettingViewHolder.kt b/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/viewholder/SwitchSettingViewHolder.kt
index 53f7b301f..e5763264a 100644
--- a/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/viewholder/SwitchSettingViewHolder.kt
+++ b/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/viewholder/SwitchSettingViewHolder.kt
@@ -9,7 +9,6 @@ import org.yuzu.yuzu_emu.databinding.ListItemSettingSwitchBinding
 import org.yuzu.yuzu_emu.features.settings.model.view.SettingsItem
 import org.yuzu.yuzu_emu.features.settings.model.view.SwitchSetting
 import org.yuzu.yuzu_emu.features.settings.ui.SettingsAdapter
-import org.yuzu.yuzu_emu.utils.NativeConfig
 import org.yuzu.yuzu_emu.utils.ViewUtils.setVisible
 
 class SwitchSettingViewHolder(val binding: ListItemSettingSwitchBinding, adapter: SettingsAdapter) :
@@ -29,9 +28,7 @@ class SwitchSettingViewHolder(val binding: ListItemSettingSwitchBinding, adapter
             adapter.onBooleanClick(setting, binding.switchWidget.isChecked, bindingAdapterPosition)
         }
 
-        binding.buttonClear.setVisible(
-            !setting.setting.global || NativeConfig.isPerGameConfigLoaded()
-        )
+        binding.buttonClear.setVisible(setting.clearable)
         binding.buttonClear.setOnClickListener {
             adapter.onClearClick(setting, bindingAdapterPosition)
         }
diff --git a/src/android/app/src/main/java/org/yuzu/yuzu_emu/fragments/EmulationFragment.kt b/src/android/app/src/main/java/org/yuzu/yuzu_emu/fragments/EmulationFragment.kt
index c3b2b11f8..bcc880e17 100644
--- a/src/android/app/src/main/java/org/yuzu/yuzu_emu/fragments/EmulationFragment.kt
+++ b/src/android/app/src/main/java/org/yuzu/yuzu_emu/fragments/EmulationFragment.kt
@@ -810,7 +810,7 @@ class EmulationFragment : Fragment(), SurfaceHolder.Callback {
                     }
             }
         }
-        binding.doneControlConfig.setVisible(false)
+        binding.doneControlConfig.setVisible(true)
         binding.surfaceInputOverlay.setIsInEditMode(true)
     }
 
diff --git a/src/android/app/src/main/java/org/yuzu/yuzu_emu/overlay/InputOverlay.kt b/src/android/app/src/main/java/org/yuzu/yuzu_emu/overlay/InputOverlay.kt
index 66907085a..737e03584 100644
--- a/src/android/app/src/main/java/org/yuzu/yuzu_emu/overlay/InputOverlay.kt
+++ b/src/android/app/src/main/java/org/yuzu/yuzu_emu/overlay/InputOverlay.kt
@@ -28,6 +28,7 @@ import org.yuzu.yuzu_emu.features.input.NativeInput
 import org.yuzu.yuzu_emu.R
 import org.yuzu.yuzu_emu.features.input.model.NativeAnalog
 import org.yuzu.yuzu_emu.features.input.model.NativeButton
+import org.yuzu.yuzu_emu.features.input.model.NpadStyleIndex
 import org.yuzu.yuzu_emu.features.settings.model.BooleanSetting
 import org.yuzu.yuzu_emu.features.settings.model.IntSetting
 import org.yuzu.yuzu_emu.overlay.model.OverlayControl
@@ -99,12 +100,10 @@ class InputOverlay(context: Context, attrs: AttributeSet?) :
         }
 
         var shouldUpdateView = false
-        val playerIndex =
-            if (NativeInput.isHandheldOnly()) {
-                NativeInput.ConsoleDevice
-            } else {
-                NativeInput.Player1Device
-            }
+        val playerIndex = when (NativeInput.getStyleIndex(0)) {
+            NpadStyleIndex.Handheld -> 8
+            else -> 0
+        }
 
         for (button in overlayButtons) {
             if (!button.updateStatus(event)) {
@@ -664,7 +663,7 @@ class InputOverlay(context: Context, attrs: AttributeSet?) :
 
         val overlayControlData = NativeConfig.getOverlayControlData()
         overlayControlData.forEach {
-            it.enabled = OverlayControl.from(it.id)?.defaultVisibility == false
+            it.enabled = OverlayControl.from(it.id)?.defaultVisibility == true
         }
         NativeConfig.setOverlayControlData(overlayControlData)
 
diff --git a/src/android/app/src/main/jni/native.cpp b/src/android/app/src/main/jni/native.cpp
index fa2300ae6..5d484a85e 100644
--- a/src/android/app/src/main/jni/native.cpp
+++ b/src/android/app/src/main/jni/native.cpp
@@ -292,6 +292,9 @@ void EmulationSession::ShutdownEmulation() {
     // Unload user input.
     m_system.HIDCore().UnloadInputDevices();
 
+    // Enable all controllers
+    m_system.HIDCore().SetSupportedStyleTag({Core::HID::NpadStyleSet::All});
+
     // Shutdown the main emulated process
     if (m_load_result == Core::SystemResultStatus::Success) {
         m_system.DetachDebugger();
diff --git a/src/android/app/src/main/jni/native_input.cpp b/src/android/app/src/main/jni/native_input.cpp
index 37a65f2b8..4935a4607 100644
--- a/src/android/app/src/main/jni/native_input.cpp
+++ b/src/android/app/src/main/jni/native_input.cpp
@@ -102,8 +102,50 @@ void ApplyControllerConfig(size_t player_index,
     }
 }
 
+std::vector<s32> GetSupportedStyles(int player_index) {
+    auto& hid_core = EmulationSession::GetInstance().System().HIDCore();
+    const auto npad_style_set = hid_core.GetSupportedStyleTag();
+    std::vector<s32> supported_indexes;
+    if (npad_style_set.fullkey == 1) {
+        supported_indexes.push_back(static_cast<s32>(Core::HID::NpadStyleIndex::Fullkey));
+    }
+
+    if (npad_style_set.joycon_dual == 1) {
+        supported_indexes.push_back(static_cast<s32>(Core::HID::NpadStyleIndex::JoyconDual));
+    }
+
+    if (npad_style_set.joycon_left == 1) {
+        supported_indexes.push_back(static_cast<s32>(Core::HID::NpadStyleIndex::JoyconLeft));
+    }
+
+    if (npad_style_set.joycon_right == 1) {
+        supported_indexes.push_back(static_cast<s32>(Core::HID::NpadStyleIndex::JoyconRight));
+    }
+
+    if (player_index == 0 && npad_style_set.handheld == 1) {
+        supported_indexes.push_back(static_cast<s32>(Core::HID::NpadStyleIndex::Handheld));
+    }
+
+    if (npad_style_set.gamecube == 1) {
+        supported_indexes.push_back(static_cast<s32>(Core::HID::NpadStyleIndex::GameCube));
+    }
+
+    return supported_indexes;
+}
+
 void ConnectController(size_t player_index, bool connected) {
     auto& hid_core = EmulationSession::GetInstance().System().HIDCore();
+    ApplyControllerConfig(player_index, [&](Core::HID::EmulatedController* controller) {
+        auto supported_styles = GetSupportedStyles(player_index);
+        auto controller_style = controller->GetNpadStyleIndex(true);
+        auto style = std::find(supported_styles.begin(), supported_styles.end(),
+                               static_cast<int>(controller_style));
+        if (style == supported_styles.end() && !supported_styles.empty()) {
+            controller->SetNpadStyleIndex(
+                static_cast<Core::HID::NpadStyleIndex>(supported_styles[0]));
+        }
+    });
+
     if (player_index == 0) {
         auto* handheld = hid_core.GetEmulatedController(Core::HID::NpadIdType::Handheld);
         auto* player_one = hid_core.GetEmulatedController(Core::HID::NpadIdType::Player1);
@@ -522,36 +564,10 @@ jint Java_org_yuzu_yuzu_1emu_features_input_NativeInput_getButtonNameImpl(JNIEnv
 
 jintArray Java_org_yuzu_yuzu_1emu_features_input_NativeInput_getSupportedStyleTagsImpl(
     JNIEnv* env, jobject j_obj, jint j_player_index) {
-    auto& hid_core = EmulationSession::GetInstance().System().HIDCore();
-    const auto npad_style_set = hid_core.GetSupportedStyleTag();
-    std::vector<s32> supported_indexes;
-    if (npad_style_set.fullkey == 1) {
-        supported_indexes.push_back(static_cast<u32>(Core::HID::NpadStyleIndex::Fullkey));
-    }
-
-    if (npad_style_set.joycon_dual == 1) {
-        supported_indexes.push_back(static_cast<u32>(Core::HID::NpadStyleIndex::JoyconDual));
-    }
-
-    if (npad_style_set.joycon_left == 1) {
-        supported_indexes.push_back(static_cast<u32>(Core::HID::NpadStyleIndex::JoyconLeft));
-    }
-
-    if (npad_style_set.joycon_right == 1) {
-        supported_indexes.push_back(static_cast<u32>(Core::HID::NpadStyleIndex::JoyconRight));
-    }
-
-    if (j_player_index == 0 && npad_style_set.handheld == 1) {
-        supported_indexes.push_back(static_cast<u32>(Core::HID::NpadStyleIndex::Handheld));
-    }
-
-    if (npad_style_set.gamecube == 1) {
-        supported_indexes.push_back(static_cast<u32>(Core::HID::NpadStyleIndex::GameCube));
-    }
-
-    jintArray j_supported_indexes = env->NewIntArray(supported_indexes.size());
-    env->SetIntArrayRegion(j_supported_indexes, 0, supported_indexes.size(),
-                           supported_indexes.data());
+    auto supported_styles = GetSupportedStyles(j_player_index);
+    jintArray j_supported_indexes = env->NewIntArray(supported_styles.size());
+    env->SetIntArrayRegion(j_supported_indexes, 0, supported_styles.size(),
+                           supported_styles.data());
     return j_supported_indexes;
 }
 
diff --git a/src/android/app/src/main/res/values/strings.xml b/src/android/app/src/main/res/values/strings.xml
index 6a631f664..f7f19cdad 100644
--- a/src/android/app/src/main/res/values/strings.xml
+++ b/src/android/app/src/main/res/values/strings.xml
@@ -209,6 +209,7 @@
     <string name="value_with_units">%1$s%2$s</string>
 
     <!-- System settings strings -->
+    <string name="device_name">Device name</string>
     <string name="use_docked_mode">Docked Mode</string>
     <string name="use_docked_mode_description">Increases resolution, decreasing performance. Handheld Mode is used when disabled, lowering resolution and increasing performance.</string>
     <string name="emulated_region">Emulated region</string>
diff --git a/src/common/settings.h b/src/common/settings.h
index aa054dc24..b2b071e7e 100644
--- a/src/common/settings.h
+++ b/src/common/settings.h
@@ -384,6 +384,12 @@ struct Values {
                                                                   AstcRecompression::Bc3,
                                                                   "astc_recompression",
                                                                   Category::RendererAdvanced};
+    SwitchableSetting<VramUsageMode, true> vram_usage_mode{linkage,
+                                                           VramUsageMode::Conservative,
+                                                           VramUsageMode::Conservative,
+                                                           VramUsageMode::Aggressive,
+                                                           "vram_usage_mode",
+                                                           Category::RendererAdvanced};
     SwitchableSetting<bool> async_presentation{linkage,
 #ifdef ANDROID
                                                true,
diff --git a/src/common/settings_enums.h b/src/common/settings_enums.h
index f42367e67..6e247e930 100644
--- a/src/common/settings_enums.h
+++ b/src/common/settings_enums.h
@@ -122,6 +122,8 @@ ENUM(AstcRecompression, Uncompressed, Bc1, Bc3);
 
 ENUM(VSyncMode, Immediate, Mailbox, Fifo, FifoRelaxed);
 
+ENUM(VramUsageMode, Conservative, Aggressive);
+
 ENUM(RendererBackend, OpenGL, Vulkan, Null);
 
 ENUM(ShaderBackend, Glsl, Glasm, SpirV);
diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt
index de945fa70..65bbf4818 100644
--- a/src/core/CMakeLists.txt
+++ b/src/core/CMakeLists.txt
@@ -60,8 +60,12 @@ add_library(core STATIC
     file_sys/fs_path_utility.h
     file_sys/fs_save_data_types.h
     file_sys/fs_string_util.h
+    file_sys/fsa/fs_i_directory.h
+    file_sys/fsa/fs_i_file.h
+    file_sys/fsa/fs_i_filesystem.h
     file_sys/fsmitm_romfsbuild.cpp
     file_sys/fsmitm_romfsbuild.h
+    file_sys/fssrv/fssrv_sf_path.h
     file_sys/fssystem/fs_i_storage.h
     file_sys/fssystem/fs_types.h
     file_sys/fssystem/fssystem_aes_ctr_counter_extended_storage.cpp
@@ -544,6 +548,16 @@ add_library(core STATIC
     hle/service/btdrv/btdrv.h
     hle/service/btm/btm.cpp
     hle/service/btm/btm.h
+    hle/service/btm/btm_debug.cpp
+    hle/service/btm/btm_debug.h
+    hle/service/btm/btm_system.cpp
+    hle/service/btm/btm_system.h
+    hle/service/btm/btm_system_core.cpp
+    hle/service/btm/btm_system_core.h
+    hle/service/btm/btm_user.cpp
+    hle/service/btm/btm_user.h
+    hle/service/btm/btm_user_core.cpp
+    hle/service/btm/btm_user_core.h
     hle/service/caps/caps.cpp
     hle/service/caps/caps.h
     hle/service/caps/caps_a.cpp
@@ -886,6 +900,21 @@ add_library(core STATIC
     hle/service/pm/pm.h
     hle/service/prepo/prepo.cpp
     hle/service/prepo/prepo.h
+    hle/service/psc/ovln/ovln_types.h
+    hle/service/psc/ovln/receiver_service.cpp
+    hle/service/psc/ovln/receiver_service.h
+    hle/service/psc/ovln/receiver.cpp
+    hle/service/psc/ovln/receiver.h
+    hle/service/psc/ovln/sender_service.cpp
+    hle/service/psc/ovln/sender_service.h
+    hle/service/psc/ovln/sender.cpp
+    hle/service/psc/ovln/sender.h
+    hle/service/psc/pm_control.cpp
+    hle/service/psc/pm_control.h
+    hle/service/psc/pm_module.cpp
+    hle/service/psc/pm_module.h
+    hle/service/psc/pm_service.cpp
+    hle/service/psc/pm_service.h
     hle/service/psc/psc.cpp
     hle/service/psc/psc.h
     hle/service/psc/time/alarms.cpp
diff --git a/src/core/device_memory_manager.inc b/src/core/device_memory_manager.inc
index 37c1e69c3..f104d495b 100644
--- a/src/core/device_memory_manager.inc
+++ b/src/core/device_memory_manager.inc
@@ -522,13 +522,17 @@ void DeviceMemoryManager<Traits>::UpdatePagesCachedCount(DAddr addr, size_t size
     auto* memory_device_inter = registered_processes[asid.id];
     const auto release_pending = [&] {
         if (uncache_bytes > 0) {
-            MarkRegionCaching(memory_device_inter, uncache_begin << Memory::YUZU_PAGEBITS,
-                              uncache_bytes, false);
+            if (memory_device_inter != nullptr) {
+                MarkRegionCaching(memory_device_inter, uncache_begin << Memory::YUZU_PAGEBITS,
+                                  uncache_bytes, false);
+            }
             uncache_bytes = 0;
         }
         if (cache_bytes > 0) {
-            MarkRegionCaching(memory_device_inter, cache_begin << Memory::YUZU_PAGEBITS,
-                              cache_bytes, true);
+            if (memory_device_inter != nullptr) {
+                MarkRegionCaching(memory_device_inter, cache_begin << Memory::YUZU_PAGEBITS,
+                                  cache_bytes, true);
+            }
             cache_bytes = 0;
         }
     };
diff --git a/src/core/file_sys/fs_filesystem.h b/src/core/file_sys/fs_filesystem.h
index 7f237b7fa..329b5aca5 100644
--- a/src/core/file_sys/fs_filesystem.h
+++ b/src/core/file_sys/fs_filesystem.h
@@ -23,6 +23,8 @@ enum class OpenDirectoryMode : u64 {
     File = (1 << 1),
 
     All = (Directory | File),
+
+    NotRequireFileSize = (1ULL << 31),
 };
 DECLARE_ENUM_FLAG_OPERATORS(OpenDirectoryMode)
 
@@ -36,4 +38,29 @@ enum class CreateOption : u8 {
     BigFile = (1 << 0),
 };
 
+struct FileSystemAttribute {
+    u8 dir_entry_name_length_max_defined;
+    u8 file_entry_name_length_max_defined;
+    u8 dir_path_name_length_max_defined;
+    u8 file_path_name_length_max_defined;
+    INSERT_PADDING_BYTES_NOINIT(0x5);
+    u8 utf16_dir_entry_name_length_max_defined;
+    u8 utf16_file_entry_name_length_max_defined;
+    u8 utf16_dir_path_name_length_max_defined;
+    u8 utf16_file_path_name_length_max_defined;
+    INSERT_PADDING_BYTES_NOINIT(0x18);
+    s32 dir_entry_name_length_max;
+    s32 file_entry_name_length_max;
+    s32 dir_path_name_length_max;
+    s32 file_path_name_length_max;
+    INSERT_PADDING_WORDS_NOINIT(0x5);
+    s32 utf16_dir_entry_name_length_max;
+    s32 utf16_file_entry_name_length_max;
+    s32 utf16_dir_path_name_length_max;
+    s32 utf16_file_path_name_length_max;
+    INSERT_PADDING_WORDS_NOINIT(0x18);
+    INSERT_PADDING_WORDS_NOINIT(0x1);
+};
+static_assert(sizeof(FileSystemAttribute) == 0xC0, "FileSystemAttribute has incorrect size");
+
 } // namespace FileSys
diff --git a/src/core/file_sys/fs_memory_management.h b/src/core/file_sys/fs_memory_management.h
index f03c6354b..080017c5d 100644
--- a/src/core/file_sys/fs_memory_management.h
+++ b/src/core/file_sys/fs_memory_management.h
@@ -10,7 +10,7 @@ namespace FileSys {
 
 constexpr size_t RequiredAlignment = alignof(u64);
 
-void* AllocateUnsafe(size_t size) {
+inline void* AllocateUnsafe(size_t size) {
     // Allocate
     void* const ptr = ::operator new(size, std::align_val_t{RequiredAlignment});
 
@@ -21,16 +21,16 @@ void* AllocateUnsafe(size_t size) {
     return ptr;
 }
 
-void DeallocateUnsafe(void* ptr, size_t size) {
+inline void DeallocateUnsafe(void* ptr, size_t size) {
     // Deallocate the pointer
     ::operator delete(ptr, std::align_val_t{RequiredAlignment});
 }
 
-void* Allocate(size_t size) {
+inline void* Allocate(size_t size) {
     return AllocateUnsafe(size);
 }
 
-void Deallocate(void* ptr, size_t size) {
+inline void Deallocate(void* ptr, size_t size) {
     // If the pointer is non-null, deallocate it
     if (ptr != nullptr) {
         DeallocateUnsafe(ptr, size);
diff --git a/src/core/file_sys/fs_path.h b/src/core/file_sys/fs_path.h
index 56ba08a6a..1566e82b9 100644
--- a/src/core/file_sys/fs_path.h
+++ b/src/core/file_sys/fs_path.h
@@ -381,7 +381,7 @@ public:
 
         // Check that it's possible for us to remove a child
         auto* p = m_write_buffer.Get();
-        s32 len = std::strlen(p);
+        s32 len = static_cast<s32>(std::strlen(p));
         R_UNLESS(len != 1 || (p[0] != '/' && p[0] != '.'), ResultNotImplemented);
 
         // Handle a trailing separator
diff --git a/src/core/file_sys/fs_path_utility.h b/src/core/file_sys/fs_path_utility.h
index 5643141f9..cdfd8c772 100644
--- a/src/core/file_sys/fs_path_utility.h
+++ b/src/core/file_sys/fs_path_utility.h
@@ -426,9 +426,10 @@ public:
         R_SUCCEED();
     }
 
-    static Result Normalize(char* dst, size_t* out_len, const char* path, size_t max_out_size,
-                            bool is_windows_path, bool is_drive_relative_path,
-                            bool allow_all_characters = false) {
+    static constexpr Result Normalize(char* dst, size_t* out_len, const char* path,
+                                      size_t max_out_size, bool is_windows_path,
+                                      bool is_drive_relative_path,
+                                      bool allow_all_characters = false) {
         // Use StringTraits names for remainder of scope
         using namespace StringTraits;
 
diff --git a/src/core/file_sys/fs_string_util.h b/src/core/file_sys/fs_string_util.h
index 874e09054..c751a8f1a 100644
--- a/src/core/file_sys/fs_string_util.h
+++ b/src/core/file_sys/fs_string_util.h
@@ -20,6 +20,11 @@ constexpr int Strlen(const T* str) {
 }
 
 template <typename T>
+constexpr int Strnlen(const T* str, std::size_t count) {
+    return Strnlen(str, static_cast<int>(count));
+}
+
+template <typename T>
 constexpr int Strnlen(const T* str, int count) {
     ASSERT(str != nullptr);
     ASSERT(count >= 0);
@@ -33,6 +38,11 @@ constexpr int Strnlen(const T* str, int count) {
 }
 
 template <typename T>
+constexpr int Strncmp(const T* lhs, const T* rhs, std::size_t count) {
+    return Strncmp(lhs, rhs, static_cast<int>(count));
+}
+
+template <typename T>
 constexpr int Strncmp(const T* lhs, const T* rhs, int count) {
     ASSERT(lhs != nullptr);
     ASSERT(rhs != nullptr);
@@ -52,6 +62,11 @@ constexpr int Strncmp(const T* lhs, const T* rhs, int count) {
 }
 
 template <typename T>
+static constexpr int Strlcpy(T* dst, const T* src, std::size_t count) {
+    return Strlcpy<T>(dst, src, static_cast<int>(count));
+}
+
+template <typename T>
 static constexpr int Strlcpy(T* dst, const T* src, int count) {
     ASSERT(dst != nullptr);
     ASSERT(src != nullptr);
diff --git a/src/core/file_sys/fsa/fs_i_directory.h b/src/core/file_sys/fsa/fs_i_directory.h
new file mode 100644
index 000000000..c8e895eab
--- /dev/null
+++ b/src/core/file_sys/fsa/fs_i_directory.h
@@ -0,0 +1,91 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "common/common_types.h"
+#include "core/file_sys/errors.h"
+#include "core/file_sys/fs_directory.h"
+#include "core/file_sys/fs_file.h"
+#include "core/file_sys/fs_filesystem.h"
+#include "core/file_sys/savedata_factory.h"
+#include "core/file_sys/vfs/vfs.h"
+#include "core/hle/result.h"
+
+namespace FileSys::Fsa {
+
+class IDirectory {
+public:
+    explicit IDirectory(VirtualDir backend_, OpenDirectoryMode mode)
+        : backend(std::move(backend_)) {
+        // TODO(DarkLordZach): Verify that this is the correct behavior.
+        // Build entry index now to save time later.
+        if (True(mode & OpenDirectoryMode::Directory)) {
+            BuildEntryIndex(backend->GetSubdirectories(), DirectoryEntryType::Directory);
+        }
+        if (True(mode & OpenDirectoryMode::File)) {
+            BuildEntryIndex(backend->GetFiles(), DirectoryEntryType::File);
+        }
+    }
+    virtual ~IDirectory() {}
+
+    Result Read(s64* out_count, DirectoryEntry* out_entries, s64 max_entries) {
+        R_UNLESS(out_count != nullptr, ResultNullptrArgument);
+        if (max_entries == 0) {
+            *out_count = 0;
+            R_SUCCEED();
+        }
+        R_UNLESS(out_entries != nullptr, ResultNullptrArgument);
+        R_UNLESS(max_entries > 0, ResultInvalidArgument);
+        R_RETURN(this->DoRead(out_count, out_entries, max_entries));
+    }
+
+    Result GetEntryCount(s64* out) {
+        R_UNLESS(out != nullptr, ResultNullptrArgument);
+        R_RETURN(this->DoGetEntryCount(out));
+    }
+
+private:
+    Result DoRead(s64* out_count, DirectoryEntry* out_entries, s64 max_entries) {
+        const u64 actual_entries =
+            std::min(static_cast<u64>(max_entries), entries.size() - next_entry_index);
+        const auto* begin = reinterpret_cast<u8*>(entries.data() + next_entry_index);
+        const auto* end = reinterpret_cast<u8*>(entries.data() + next_entry_index + actual_entries);
+        const auto range_size = static_cast<std::size_t>(std::distance(begin, end));
+
+        next_entry_index += actual_entries;
+        *out_count = actual_entries;
+
+        std::memcpy(out_entries, begin, range_size);
+
+        R_SUCCEED();
+    }
+
+    Result DoGetEntryCount(s64* out) {
+        *out = entries.size() - next_entry_index;
+        R_SUCCEED();
+    }
+
+    // TODO: Remove this when VFS is gone
+    template <typename T>
+    void BuildEntryIndex(const std::vector<T>& new_data, DirectoryEntryType type) {
+        entries.reserve(entries.size() + new_data.size());
+
+        for (const auto& new_entry : new_data) {
+            auto name = new_entry->GetName();
+
+            if (type == DirectoryEntryType::File && name == GetSaveDataSizeFileName()) {
+                continue;
+            }
+
+            entries.emplace_back(name, static_cast<s8>(type),
+                                 type == DirectoryEntryType::Directory ? 0 : new_entry->GetSize());
+        }
+    }
+
+    VirtualDir backend;
+    std::vector<DirectoryEntry> entries;
+    u64 next_entry_index = 0;
+};
+
+} // namespace FileSys::Fsa
diff --git a/src/core/file_sys/fsa/fs_i_file.h b/src/core/file_sys/fsa/fs_i_file.h
new file mode 100644
index 000000000..1188ae8ca
--- /dev/null
+++ b/src/core/file_sys/fsa/fs_i_file.h
@@ -0,0 +1,167 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "common/overflow.h"
+#include "core/file_sys/errors.h"
+#include "core/file_sys/fs_file.h"
+#include "core/file_sys/fs_filesystem.h"
+#include "core/file_sys/fs_operate_range.h"
+#include "core/file_sys/vfs/vfs.h"
+#include "core/file_sys/vfs/vfs_types.h"
+#include "core/hle/result.h"
+
+namespace FileSys::Fsa {
+
+class IFile {
+public:
+    explicit IFile(VirtualFile backend_) : backend(std::move(backend_)) {}
+    virtual ~IFile() {}
+
+    Result Read(size_t* out, s64 offset, void* buffer, size_t size, const ReadOption& option) {
+        // Check that we have an output pointer
+        R_UNLESS(out != nullptr, ResultNullptrArgument);
+
+        // If we have nothing to read, just succeed
+        if (size == 0) {
+            *out = 0;
+            R_SUCCEED();
+        }
+
+        // Check that the read is valid
+        R_UNLESS(buffer != nullptr, ResultNullptrArgument);
+        R_UNLESS(offset >= 0, ResultOutOfRange);
+        R_UNLESS(Common::CanAddWithoutOverflow<s64>(offset, size), ResultOutOfRange);
+
+        // Do the read
+        R_RETURN(this->DoRead(out, offset, buffer, size, option));
+    }
+
+    Result Read(size_t* out, s64 offset, void* buffer, size_t size) {
+        R_RETURN(this->Read(out, offset, buffer, size, ReadOption::None));
+    }
+
+    Result GetSize(s64* out) {
+        R_UNLESS(out != nullptr, ResultNullptrArgument);
+        R_RETURN(this->DoGetSize(out));
+    }
+
+    Result Flush() {
+        R_RETURN(this->DoFlush());
+    }
+
+    Result Write(s64 offset, const void* buffer, size_t size, const WriteOption& option) {
+        // Handle the zero-size case
+        if (size == 0) {
+            if (option.HasFlushFlag()) {
+                R_TRY(this->Flush());
+            }
+            R_SUCCEED();
+        }
+
+        // Check the write is valid
+        R_UNLESS(buffer != nullptr, ResultNullptrArgument);
+        R_UNLESS(offset >= 0, ResultOutOfRange);
+        R_UNLESS(Common::CanAddWithoutOverflow<s64>(offset, size), ResultOutOfRange);
+
+        R_RETURN(this->DoWrite(offset, buffer, size, option));
+    }
+
+    Result SetSize(s64 size) {
+        R_UNLESS(size >= 0, ResultOutOfRange);
+        R_RETURN(this->DoSetSize(size));
+    }
+
+    Result OperateRange(void* dst, size_t dst_size, OperationId op_id, s64 offset, s64 size,
+                        const void* src, size_t src_size) {
+        R_RETURN(this->DoOperateRange(dst, dst_size, op_id, offset, size, src, src_size));
+    }
+
+    Result OperateRange(OperationId op_id, s64 offset, s64 size) {
+        R_RETURN(this->DoOperateRange(nullptr, 0, op_id, offset, size, nullptr, 0));
+    }
+
+protected:
+    Result DryRead(size_t* out, s64 offset, size_t size, const ReadOption& option,
+                   OpenMode open_mode) {
+        // Check that we can read
+        R_UNLESS(static_cast<u32>(open_mode & OpenMode::Read) != 0, ResultReadNotPermitted);
+
+        // Get the file size, and validate our offset
+        s64 file_size = 0;
+        R_TRY(this->DoGetSize(std::addressof(file_size)));
+        R_UNLESS(offset <= file_size, ResultOutOfRange);
+
+        *out = static_cast<size_t>(std::min(file_size - offset, static_cast<s64>(size)));
+        R_SUCCEED();
+    }
+
+    Result DrySetSize(s64 size, OpenMode open_mode) {
+        // Check that we can write
+        R_UNLESS(static_cast<u32>(open_mode & OpenMode::Write) != 0, ResultWriteNotPermitted);
+        R_SUCCEED();
+    }
+
+    Result DryWrite(bool* out_append, s64 offset, size_t size, const WriteOption& option,
+                    OpenMode open_mode) {
+        // Check that we can write
+        R_UNLESS(static_cast<u32>(open_mode & OpenMode::Write) != 0, ResultWriteNotPermitted);
+
+        // Get the file size
+        s64 file_size = 0;
+        R_TRY(this->DoGetSize(&file_size));
+
+        // Determine if we need to append
+        *out_append = false;
+        if (file_size < offset + static_cast<s64>(size)) {
+            R_UNLESS(static_cast<u32>(open_mode & OpenMode::AllowAppend) != 0,
+                     ResultFileExtensionWithoutOpenModeAllowAppend);
+            *out_append = true;
+        }
+
+        R_SUCCEED();
+    }
+
+private:
+    Result DoRead(size_t* out, s64 offset, void* buffer, size_t size, const ReadOption& option) {
+        const auto read_size = backend->Read(static_cast<u8*>(buffer), size, offset);
+        *out = read_size;
+
+        R_SUCCEED();
+    }
+
+    Result DoGetSize(s64* out) {
+        *out = backend->GetSize();
+        R_SUCCEED();
+    }
+
+    Result DoFlush() {
+        // Exists for SDK compatibiltity -- No need to flush file.
+        R_SUCCEED();
+    }
+
+    Result DoWrite(s64 offset, const void* buffer, size_t size, const WriteOption& option) {
+        const std::size_t written = backend->Write(static_cast<const u8*>(buffer), size, offset);
+
+        ASSERT_MSG(written == size,
+                   "Could not write all bytes to file (requested={:016X}, actual={:016X}).", size,
+                   written);
+
+        R_SUCCEED();
+    }
+
+    Result DoSetSize(s64 size) {
+        backend->Resize(size);
+        R_SUCCEED();
+    }
+
+    Result DoOperateRange(void* dst, size_t dst_size, OperationId op_id, s64 offset, s64 size,
+                          const void* src, size_t src_size) {
+        R_THROW(ResultNotImplemented);
+    }
+
+    VirtualFile backend;
+};
+
+} // namespace FileSys::Fsa
diff --git a/src/core/file_sys/fsa/fs_i_filesystem.h b/src/core/file_sys/fsa/fs_i_filesystem.h
new file mode 100644
index 000000000..8172190f4
--- /dev/null
+++ b/src/core/file_sys/fsa/fs_i_filesystem.h
@@ -0,0 +1,206 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/file_sys/errors.h"
+#include "core/file_sys/fs_filesystem.h"
+#include "core/file_sys/fs_path.h"
+#include "core/file_sys/vfs/vfs_types.h"
+#include "core/hle/result.h"
+#include "core/hle/service/filesystem/filesystem.h"
+
+namespace FileSys::Fsa {
+
+class IFile;
+class IDirectory;
+
+enum class QueryId : u32 {
+    SetConcatenationFileAttribute = 0,
+    UpdateMac = 1,
+    IsSignedSystemPartitionOnSdCardValid = 2,
+    QueryUnpreparedFileInformation = 3,
+};
+
+class IFileSystem {
+public:
+    explicit IFileSystem(VirtualDir backend_) : backend{std::move(backend_)} {}
+    virtual ~IFileSystem() {}
+
+    Result CreateFile(const Path& path, s64 size, CreateOption option) {
+        R_UNLESS(size >= 0, ResultOutOfRange);
+        R_RETURN(this->DoCreateFile(path, size, static_cast<int>(option)));
+    }
+
+    Result CreateFile(const Path& path, s64 size) {
+        R_RETURN(this->CreateFile(path, size, CreateOption::None));
+    }
+
+    Result DeleteFile(const Path& path) {
+        R_RETURN(this->DoDeleteFile(path));
+    }
+
+    Result CreateDirectory(const Path& path) {
+        R_RETURN(this->DoCreateDirectory(path));
+    }
+
+    Result DeleteDirectory(const Path& path) {
+        R_RETURN(this->DoDeleteDirectory(path));
+    }
+
+    Result DeleteDirectoryRecursively(const Path& path) {
+        R_RETURN(this->DoDeleteDirectoryRecursively(path));
+    }
+
+    Result RenameFile(const Path& old_path, const Path& new_path) {
+        R_RETURN(this->DoRenameFile(old_path, new_path));
+    }
+
+    Result RenameDirectory(const Path& old_path, const Path& new_path) {
+        R_RETURN(this->DoRenameDirectory(old_path, new_path));
+    }
+
+    Result GetEntryType(DirectoryEntryType* out, const Path& path) {
+        R_RETURN(this->DoGetEntryType(out, path));
+    }
+
+    Result OpenFile(VirtualFile* out_file, const Path& path, OpenMode mode) {
+        R_UNLESS(out_file != nullptr, ResultNullptrArgument);
+        R_UNLESS(static_cast<u32>(mode & OpenMode::ReadWrite) != 0, ResultInvalidOpenMode);
+        R_UNLESS(static_cast<u32>(mode & ~OpenMode::All) == 0, ResultInvalidOpenMode);
+        R_RETURN(this->DoOpenFile(out_file, path, mode));
+    }
+
+    Result OpenDirectory(VirtualDir* out_dir, const Path& path, OpenDirectoryMode mode) {
+        R_UNLESS(out_dir != nullptr, ResultNullptrArgument);
+        R_UNLESS(static_cast<u64>(mode & OpenDirectoryMode::All) != 0, ResultInvalidOpenMode);
+        R_UNLESS(static_cast<u64>(
+                     mode & ~(OpenDirectoryMode::All | OpenDirectoryMode::NotRequireFileSize)) == 0,
+                 ResultInvalidOpenMode);
+        R_RETURN(this->DoOpenDirectory(out_dir, path, mode));
+    }
+
+    Result Commit() {
+        R_RETURN(this->DoCommit());
+    }
+
+    Result GetFreeSpaceSize(s64* out, const Path& path) {
+        R_UNLESS(out != nullptr, ResultNullptrArgument);
+        R_RETURN(this->DoGetFreeSpaceSize(out, path));
+    }
+
+    Result GetTotalSpaceSize(s64* out, const Path& path) {
+        R_UNLESS(out != nullptr, ResultNullptrArgument);
+        R_RETURN(this->DoGetTotalSpaceSize(out, path));
+    }
+
+    Result CleanDirectoryRecursively(const Path& path) {
+        R_RETURN(this->DoCleanDirectoryRecursively(path));
+    }
+
+    Result GetFileTimeStampRaw(FileTimeStampRaw* out, const Path& path) {
+        R_UNLESS(out != nullptr, ResultNullptrArgument);
+        R_RETURN(this->DoGetFileTimeStampRaw(out, path));
+    }
+
+    Result QueryEntry(char* dst, size_t dst_size, const char* src, size_t src_size, QueryId query,
+                      const Path& path) {
+        R_RETURN(this->DoQueryEntry(dst, dst_size, src, src_size, query, path));
+    }
+
+    // These aren't accessible as commands
+    Result CommitProvisionally(s64 counter) {
+        R_RETURN(this->DoCommitProvisionally(counter));
+    }
+
+    Result Rollback() {
+        R_RETURN(this->DoRollback());
+    }
+
+    Result Flush() {
+        R_RETURN(this->DoFlush());
+    }
+
+private:
+    Result DoCreateFile(const Path& path, s64 size, int flags) {
+        R_RETURN(backend.CreateFile(path.GetString(), size));
+    }
+
+    Result DoDeleteFile(const Path& path) {
+        R_RETURN(backend.DeleteFile(path.GetString()));
+    }
+
+    Result DoCreateDirectory(const Path& path) {
+        R_RETURN(backend.CreateDirectory(path.GetString()));
+    }
+
+    Result DoDeleteDirectory(const Path& path) {
+        R_RETURN(backend.DeleteDirectory(path.GetString()));
+    }
+
+    Result DoDeleteDirectoryRecursively(const Path& path) {
+        R_RETURN(backend.DeleteDirectoryRecursively(path.GetString()));
+    }
+
+    Result DoRenameFile(const Path& old_path, const Path& new_path) {
+        R_RETURN(backend.RenameFile(old_path.GetString(), new_path.GetString()));
+    }
+
+    Result DoRenameDirectory(const Path& old_path, const Path& new_path) {
+        R_RETURN(backend.RenameDirectory(old_path.GetString(), new_path.GetString()));
+    }
+
+    Result DoGetEntryType(DirectoryEntryType* out, const Path& path) {
+        R_RETURN(backend.GetEntryType(out, path.GetString()));
+    }
+
+    Result DoOpenFile(VirtualFile* out_file, const Path& path, OpenMode mode) {
+        R_RETURN(backend.OpenFile(out_file, path.GetString(), mode));
+    }
+
+    Result DoOpenDirectory(VirtualDir* out_directory, const Path& path, OpenDirectoryMode mode) {
+        R_RETURN(backend.OpenDirectory(out_directory, path.GetString()));
+    }
+
+    Result DoCommit() {
+        R_THROW(ResultNotImplemented);
+    }
+
+    Result DoGetFreeSpaceSize(s64* out, const Path& path) {
+        R_THROW(ResultNotImplemented);
+    }
+
+    Result DoGetTotalSpaceSize(s64* out, const Path& path) {
+        R_THROW(ResultNotImplemented);
+    }
+
+    Result DoCleanDirectoryRecursively(const Path& path) {
+        R_RETURN(backend.CleanDirectoryRecursively(path.GetString()));
+    }
+
+    Result DoGetFileTimeStampRaw(FileTimeStampRaw* out, const Path& path) {
+        R_RETURN(backend.GetFileTimeStampRaw(out, path.GetString()));
+    }
+
+    Result DoQueryEntry(char* dst, size_t dst_size, const char* src, size_t src_size, QueryId query,
+                        const Path& path) {
+        R_THROW(ResultNotImplemented);
+    }
+
+    // These aren't accessible as commands
+    Result DoCommitProvisionally(s64 counter) {
+        R_THROW(ResultNotImplemented);
+    }
+
+    Result DoRollback() {
+        R_THROW(ResultNotImplemented);
+    }
+
+    Result DoFlush() {
+        R_THROW(ResultNotImplemented);
+    }
+
+    Service::FileSystem::VfsDirectoryServiceWrapper backend;
+};
+
+} // namespace FileSys::Fsa
diff --git a/src/core/file_sys/fssrv/fssrv_sf_path.h b/src/core/file_sys/fssrv/fssrv_sf_path.h
new file mode 100644
index 000000000..a0c0b2dac
--- /dev/null
+++ b/src/core/file_sys/fssrv/fssrv_sf_path.h
@@ -0,0 +1,36 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/file_sys/fs_directory.h"
+
+namespace FileSys::Sf {
+
+struct Path {
+    char str[EntryNameLengthMax + 1];
+
+    static constexpr Path Encode(const char* p) {
+        Path path = {};
+        for (size_t i = 0; i < sizeof(path) - 1; i++) {
+            path.str[i] = p[i];
+            if (p[i] == '\x00') {
+                break;
+            }
+        }
+        return path;
+    }
+
+    static constexpr size_t GetPathLength(const Path& path) {
+        size_t len = 0;
+        for (size_t i = 0; i < sizeof(path) - 1 && path.str[i] != '\x00'; i++) {
+            len++;
+        }
+        return len;
+    }
+};
+static_assert(std::is_trivially_copyable_v<Path>, "Path must be trivially copyable.");
+
+using FspPath = Path;
+
+} // namespace FileSys::Sf
diff --git a/src/core/file_sys/fssystem/fssystem_aes_xts_storage.h b/src/core/file_sys/fssystem/fssystem_aes_xts_storage.h
index f342efb57..0e83ca1b9 100644
--- a/src/core/file_sys/fssystem/fssystem_aes_xts_storage.h
+++ b/src/core/file_sys/fssystem/fssystem_aes_xts_storage.h
@@ -3,6 +3,7 @@
 
 #pragma once
 
+#include <mutex>
 #include <optional>
 
 #include "core/crypto/aes_util.h"
diff --git a/src/core/hle/service/btm/btm.cpp b/src/core/hle/service/btm/btm.cpp
index 2dc23e674..d120dade8 100644
--- a/src/core/hle/service/btm/btm.cpp
+++ b/src/core/hle/service/btm/btm.cpp
@@ -3,141 +3,18 @@
 
 #include <memory>
 
-#include "common/logging/log.h"
-#include "core/core.h"
-#include "core/hle/kernel/k_event.h"
 #include "core/hle/service/btm/btm.h"
-#include "core/hle/service/ipc_helpers.h"
-#include "core/hle/service/kernel_helpers.h"
+#include "core/hle/service/btm/btm_debug.h"
+#include "core/hle/service/btm/btm_system.h"
+#include "core/hle/service/btm/btm_user.h"
 #include "core/hle/service/server_manager.h"
 #include "core/hle/service/service.h"
 
 namespace Service::BTM {
 
-class IBtmUserCore final : public ServiceFramework<IBtmUserCore> {
+class IBtm final : public ServiceFramework<IBtm> {
 public:
-    explicit IBtmUserCore(Core::System& system_)
-        : ServiceFramework{system_, "IBtmUserCore"}, service_context{system_, "IBtmUserCore"} {
-        // clang-format off
-        static const FunctionInfo functions[] = {
-            {0, &IBtmUserCore::AcquireBleScanEvent, "AcquireBleScanEvent"},
-            {1, nullptr, "GetBleScanFilterParameter"},
-            {2, nullptr, "GetBleScanFilterParameter2"},
-            {3, nullptr, "StartBleScanForGeneral"},
-            {4, nullptr, "StopBleScanForGeneral"},
-            {5, nullptr, "GetBleScanResultsForGeneral"},
-            {6, nullptr, "StartBleScanForPaired"},
-            {7, nullptr, "StopBleScanForPaired"},
-            {8, nullptr, "StartBleScanForSmartDevice"},
-            {9, nullptr, "StopBleScanForSmartDevice"},
-            {10, nullptr, "GetBleScanResultsForSmartDevice"},
-            {17, &IBtmUserCore::AcquireBleConnectionEvent, "AcquireBleConnectionEvent"},
-            {18, nullptr, "BleConnect"},
-            {19, nullptr, "BleDisconnect"},
-            {20, nullptr, "BleGetConnectionState"},
-            {21, nullptr, "AcquireBlePairingEvent"},
-            {22, nullptr, "BlePairDevice"},
-            {23, nullptr, "BleUnPairDevice"},
-            {24, nullptr, "BleUnPairDevice2"},
-            {25, nullptr, "BleGetPairedDevices"},
-            {26, &IBtmUserCore::AcquireBleServiceDiscoveryEvent, "AcquireBleServiceDiscoveryEvent"},
-            {27, nullptr, "GetGattServices"},
-            {28, nullptr, "GetGattService"},
-            {29, nullptr, "GetGattIncludedServices"},
-            {30, nullptr, "GetBelongingGattService"},
-            {31, nullptr, "GetGattCharacteristics"},
-            {32, nullptr, "GetGattDescriptors"},
-            {33, &IBtmUserCore::AcquireBleMtuConfigEvent, "AcquireBleMtuConfigEvent"},
-            {34, nullptr, "ConfigureBleMtu"},
-            {35, nullptr, "GetBleMtu"},
-            {36, nullptr, "RegisterBleGattDataPath"},
-            {37, nullptr, "UnregisterBleGattDataPath"},
-        };
-        // clang-format on
-        RegisterHandlers(functions);
-
-        scan_event = service_context.CreateEvent("IBtmUserCore:ScanEvent");
-        connection_event = service_context.CreateEvent("IBtmUserCore:ConnectionEvent");
-        service_discovery_event = service_context.CreateEvent("IBtmUserCore:DiscoveryEvent");
-        config_event = service_context.CreateEvent("IBtmUserCore:ConfigEvent");
-    }
-
-    ~IBtmUserCore() override {
-        service_context.CloseEvent(scan_event);
-        service_context.CloseEvent(connection_event);
-        service_context.CloseEvent(service_discovery_event);
-        service_context.CloseEvent(config_event);
-    }
-
-private:
-    void AcquireBleScanEvent(HLERequestContext& ctx) {
-        LOG_WARNING(Service_BTM, "(STUBBED) called");
-
-        IPC::ResponseBuilder rb{ctx, 3, 1};
-        rb.Push(ResultSuccess);
-        rb.Push(true);
-        rb.PushCopyObjects(scan_event->GetReadableEvent());
-    }
-
-    void AcquireBleConnectionEvent(HLERequestContext& ctx) {
-        LOG_WARNING(Service_BTM, "(STUBBED) called");
-
-        IPC::ResponseBuilder rb{ctx, 3, 1};
-        rb.Push(ResultSuccess);
-        rb.Push(true);
-        rb.PushCopyObjects(connection_event->GetReadableEvent());
-    }
-
-    void AcquireBleServiceDiscoveryEvent(HLERequestContext& ctx) {
-        LOG_WARNING(Service_BTM, "(STUBBED) called");
-
-        IPC::ResponseBuilder rb{ctx, 3, 1};
-        rb.Push(ResultSuccess);
-        rb.Push(true);
-        rb.PushCopyObjects(service_discovery_event->GetReadableEvent());
-    }
-
-    void AcquireBleMtuConfigEvent(HLERequestContext& ctx) {
-        LOG_WARNING(Service_BTM, "(STUBBED) called");
-
-        IPC::ResponseBuilder rb{ctx, 3, 1};
-        rb.Push(ResultSuccess);
-        rb.Push(true);
-        rb.PushCopyObjects(config_event->GetReadableEvent());
-    }
-
-    KernelHelpers::ServiceContext service_context;
-
-    Kernel::KEvent* scan_event;
-    Kernel::KEvent* connection_event;
-    Kernel::KEvent* service_discovery_event;
-    Kernel::KEvent* config_event;
-};
-
-class BTM_USR final : public ServiceFramework<BTM_USR> {
-public:
-    explicit BTM_USR(Core::System& system_) : ServiceFramework{system_, "btm:u"} {
-        // clang-format off
-        static const FunctionInfo functions[] = {
-            {0, &BTM_USR::GetCore, "GetCore"},
-        };
-        // clang-format on
-        RegisterHandlers(functions);
-    }
-
-private:
-    void GetCore(HLERequestContext& ctx) {
-        LOG_WARNING(Service_BTM, "called");
-
-        IPC::ResponseBuilder rb{ctx, 2, 0, 1};
-        rb.Push(ResultSuccess);
-        rb.PushIpcInterface<IBtmUserCore>(system);
-    }
-};
-
-class BTM final : public ServiceFramework<BTM> {
-public:
-    explicit BTM(Core::System& system_) : ServiceFramework{system_, "btm"} {
+    explicit IBtm(Core::System& system_) : ServiceFramework{system_, "btm"} {
         // clang-format off
         static const FunctionInfo functions[] = {
             {0, nullptr, "GetState"},
@@ -232,144 +109,13 @@ public:
     }
 };
 
-class BTM_DBG final : public ServiceFramework<BTM_DBG> {
-public:
-    explicit BTM_DBG(Core::System& system_) : ServiceFramework{system_, "btm:dbg"} {
-        // clang-format off
-        static const FunctionInfo functions[] = {
-            {0, nullptr, "AcquireDiscoveryEvent"},
-            {1, nullptr, "StartDiscovery"},
-            {2, nullptr, "CancelDiscovery"},
-            {3, nullptr, "GetDeviceProperty"},
-            {4, nullptr, "CreateBond"},
-            {5, nullptr, "CancelBond"},
-            {6, nullptr, "SetTsiMode"},
-            {7, nullptr, "GeneralTest"},
-            {8, nullptr, "HidConnect"},
-            {9, nullptr, "GeneralGet"},
-            {10, nullptr, "GetGattClientDisconnectionReason"},
-            {11, nullptr, "GetBleConnectionParameter"},
-            {12, nullptr, "GetBleConnectionParameterRequest"},
-            {13, nullptr, "Unknown13"},
-        };
-        // clang-format on
-
-        RegisterHandlers(functions);
-    }
-};
-
-class IBtmSystemCore final : public ServiceFramework<IBtmSystemCore> {
-public:
-    explicit IBtmSystemCore(Core::System& system_) : ServiceFramework{system_, "IBtmSystemCore"} {
-        // clang-format off
-        static const FunctionInfo functions[] = {
-            {0, &IBtmSystemCore::StartGamepadPairing, "StartGamepadPairing"},
-            {1, &IBtmSystemCore::CancelGamepadPairing, "CancelGamepadPairing"},
-            {2, nullptr, "ClearGamepadPairingDatabase"},
-            {3, nullptr, "GetPairedGamepadCount"},
-            {4, nullptr, "EnableRadio"},
-            {5, nullptr, "DisableRadio"},
-            {6, &IBtmSystemCore::IsRadioEnabled, "IsRadioEnabled"},
-            {7, nullptr, "AcquireRadioEvent"},
-            {8, nullptr, "AcquireGamepadPairingEvent"},
-            {9, nullptr, "IsGamepadPairingStarted"},
-            {10, nullptr, "StartAudioDeviceDiscovery"},
-            {11, nullptr, "StopAudioDeviceDiscovery"},
-            {12, nullptr, "IsDiscoveryingAudioDevice"},
-            {13, nullptr, "GetDiscoveredAudioDevice"},
-            {14, nullptr, "AcquireAudioDeviceConnectionEvent"},
-            {15, nullptr, "ConnectAudioDevice"},
-            {16, nullptr, "IsConnectingAudioDevice"},
-            {17, &IBtmSystemCore::GetConnectedAudioDevices, "GetConnectedAudioDevices"},
-            {18, nullptr, "DisconnectAudioDevice"},
-            {19, nullptr, "AcquirePairedAudioDeviceInfoChangedEvent"},
-            {20, &IBtmSystemCore::GetPairedAudioDevices, "GetPairedAudioDevices"},
-            {21, nullptr, "RemoveAudioDevicePairing"},
-            {22, &IBtmSystemCore::RequestAudioDeviceConnectionRejection, "RequestAudioDeviceConnectionRejection"},
-            {23, &IBtmSystemCore::CancelAudioDeviceConnectionRejection, "CancelAudioDeviceConnectionRejection"}
-        };
-        // clang-format on
-
-        RegisterHandlers(functions);
-    }
-
-private:
-    void IsRadioEnabled(HLERequestContext& ctx) {
-        LOG_DEBUG(Service_BTM, "(STUBBED) called"); // Spams a lot when controller applet is running
-
-        IPC::ResponseBuilder rb{ctx, 3};
-        rb.Push(ResultSuccess);
-        rb.Push(true);
-    }
-
-    void StartGamepadPairing(HLERequestContext& ctx) {
-        LOG_WARNING(Service_BTM, "(STUBBED) called");
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ResultSuccess);
-    }
-
-    void CancelGamepadPairing(HLERequestContext& ctx) {
-        LOG_WARNING(Service_BTM, "(STUBBED) called");
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ResultSuccess);
-    }
-
-    void CancelAudioDeviceConnectionRejection(HLERequestContext& ctx) {
-        LOG_WARNING(Service_BTM, "(STUBBED) called");
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ResultSuccess);
-    }
-
-    void GetConnectedAudioDevices(HLERequestContext& ctx) {
-        LOG_WARNING(Service_BTM, "(STUBBED) called");
-        IPC::ResponseBuilder rb{ctx, 3};
-        rb.Push(ResultSuccess);
-        rb.Push<u32>(0);
-    }
-
-    void GetPairedAudioDevices(HLERequestContext& ctx) {
-        LOG_WARNING(Service_BTM, "(STUBBED) called");
-        IPC::ResponseBuilder rb{ctx, 3};
-        rb.Push(ResultSuccess);
-        rb.Push<u32>(0);
-    }
-
-    void RequestAudioDeviceConnectionRejection(HLERequestContext& ctx) {
-        LOG_WARNING(Service_BTM, "(STUBBED) called");
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ResultSuccess);
-    }
-};
-
-class BTM_SYS final : public ServiceFramework<BTM_SYS> {
-public:
-    explicit BTM_SYS(Core::System& system_) : ServiceFramework{system_, "btm:sys"} {
-        // clang-format off
-        static const FunctionInfo functions[] = {
-            {0, &BTM_SYS::GetCore, "GetCore"},
-        };
-        // clang-format on
-
-        RegisterHandlers(functions);
-    }
-
-private:
-    void GetCore(HLERequestContext& ctx) {
-        LOG_WARNING(Service_BTM, "called");
-
-        IPC::ResponseBuilder rb{ctx, 2, 0, 1};
-        rb.Push(ResultSuccess);
-        rb.PushIpcInterface<IBtmSystemCore>(system);
-    }
-};
-
 void LoopProcess(Core::System& system) {
     auto server_manager = std::make_unique<ServerManager>(system);
 
-    server_manager->RegisterNamedService("btm", std::make_shared<BTM>(system));
-    server_manager->RegisterNamedService("btm:dbg", std::make_shared<BTM_DBG>(system));
-    server_manager->RegisterNamedService("btm:sys", std::make_shared<BTM_SYS>(system));
-    server_manager->RegisterNamedService("btm:u", std::make_shared<BTM_USR>(system));
+    server_manager->RegisterNamedService("btm", std::make_shared<IBtm>(system));
+    server_manager->RegisterNamedService("btm:dbg", std::make_shared<IBtmDebug>(system));
+    server_manager->RegisterNamedService("btm:sys", std::make_shared<IBtmSystem>(system));
+    server_manager->RegisterNamedService("btm:u", std::make_shared<IBtmUser>(system));
     ServerManager::RunServer(std::move(server_manager));
 }
 
diff --git a/src/core/hle/service/btm/btm.h b/src/core/hle/service/btm/btm.h
index a99b34364..0bf77d053 100644
--- a/src/core/hle/service/btm/btm.h
+++ b/src/core/hle/service/btm/btm.h
@@ -3,10 +3,6 @@
 
 #pragma once
 
-namespace Service::SM {
-class ServiceManager;
-}
-
 namespace Core {
 class System;
 };
diff --git a/src/core/hle/service/btm/btm_debug.cpp b/src/core/hle/service/btm/btm_debug.cpp
new file mode 100644
index 000000000..4d61d2641
--- /dev/null
+++ b/src/core/hle/service/btm/btm_debug.cpp
@@ -0,0 +1,33 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "core/hle/service/btm/btm_debug.h"
+
+namespace Service::BTM {
+
+IBtmDebug::IBtmDebug(Core::System& system_) : ServiceFramework{system_, "btm:dbg"} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0, nullptr, "AcquireDiscoveryEvent"},
+        {1, nullptr, "StartDiscovery"},
+        {2, nullptr, "CancelDiscovery"},
+        {3, nullptr, "GetDeviceProperty"},
+        {4, nullptr, "CreateBond"},
+        {5, nullptr, "CancelBond"},
+        {6, nullptr, "SetTsiMode"},
+        {7, nullptr, "GeneralTest"},
+        {8, nullptr, "HidConnect"},
+        {9, nullptr, "GeneralGet"},
+        {10, nullptr, "GetGattClientDisconnectionReason"},
+        {11, nullptr, "GetBleConnectionParameter"},
+        {12, nullptr, "GetBleConnectionParameterRequest"},
+        {13, nullptr, "Unknown13"},
+    };
+    // clang-format on
+
+    RegisterHandlers(functions);
+}
+
+IBtmDebug::~IBtmDebug() = default;
+
+} // namespace Service::BTM
diff --git a/src/core/hle/service/btm/btm_debug.h b/src/core/hle/service/btm/btm_debug.h
new file mode 100644
index 000000000..bf4f7e14f
--- /dev/null
+++ b/src/core/hle/service/btm/btm_debug.h
@@ -0,0 +1,21 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include "core/hle/service/cmif_types.h"
+#include "core/hle/service/service.h"
+
+namespace Core {
+class System;
+}
+
+namespace Service::BTM {
+
+class IBtmDebug final : public ServiceFramework<IBtmDebug> {
+public:
+    explicit IBtmDebug(Core::System& system_);
+    ~IBtmDebug() override;
+};
+
+} // namespace Service::BTM
diff --git a/src/core/hle/service/btm/btm_system.cpp b/src/core/hle/service/btm/btm_system.cpp
new file mode 100644
index 000000000..99718a7b0
--- /dev/null
+++ b/src/core/hle/service/btm/btm_system.cpp
@@ -0,0 +1,31 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "common/logging/log.h"
+#include "core/hle/service/btm/btm_system.h"
+#include "core/hle/service/btm/btm_system_core.h"
+#include "core/hle/service/cmif_serialization.h"
+#include "core/hle/service/service.h"
+
+namespace Service::BTM {
+
+IBtmSystem::IBtmSystem(Core::System& system_) : ServiceFramework{system_, "btm:sys"} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0, C<&IBtmSystem::GetCore>, "GetCore"},
+    };
+    // clang-format on
+
+    RegisterHandlers(functions);
+}
+
+IBtmSystem::~IBtmSystem() = default;
+
+Result IBtmSystem::GetCore(OutInterface<IBtmSystemCore> out_interface) {
+    LOG_WARNING(Service_BTM, "called");
+
+    *out_interface = std::make_shared<IBtmSystemCore>(system);
+    R_SUCCEED();
+}
+
+} // namespace Service::BTM
diff --git a/src/core/hle/service/btm/btm_system.h b/src/core/hle/service/btm/btm_system.h
new file mode 100644
index 000000000..fe1c6dbd7
--- /dev/null
+++ b/src/core/hle/service/btm/btm_system.h
@@ -0,0 +1,25 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include "core/hle/service/cmif_types.h"
+#include "core/hle/service/service.h"
+
+namespace Core {
+class System;
+}
+
+namespace Service::BTM {
+class IBtmSystemCore;
+
+class IBtmSystem final : public ServiceFramework<IBtmSystem> {
+public:
+    explicit IBtmSystem(Core::System& system_);
+    ~IBtmSystem() override;
+
+private:
+    Result GetCore(OutInterface<IBtmSystemCore> out_interface);
+};
+
+} // namespace Service::BTM
diff --git a/src/core/hle/service/btm/btm_system_core.cpp b/src/core/hle/service/btm/btm_system_core.cpp
new file mode 100644
index 000000000..4bc8a9e8b
--- /dev/null
+++ b/src/core/hle/service/btm/btm_system_core.cpp
@@ -0,0 +1,127 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "common/logging/log.h"
+#include "core/hle/service/btm/btm_system_core.h"
+#include "core/hle/service/cmif_serialization.h"
+#include "core/hle/service/set/system_settings_server.h"
+#include "core/hle/service/sm/sm.h"
+
+namespace Service::BTM {
+
+IBtmSystemCore::IBtmSystemCore(Core::System& system_)
+    : ServiceFramework{system_, "IBtmSystemCore"}, service_context{system_, "IBtmSystemCore"} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0, C<&IBtmSystemCore::StartGamepadPairing>, "StartGamepadPairing"},
+        {1, C<&IBtmSystemCore::CancelGamepadPairing>, "CancelGamepadPairing"},
+        {2, nullptr, "ClearGamepadPairingDatabase"},
+        {3, nullptr, "GetPairedGamepadCount"},
+        {4, C<&IBtmSystemCore::EnableRadio>, "EnableRadio"},
+        {5, C<&IBtmSystemCore::DisableRadio>, "DisableRadio"},
+        {6, C<&IBtmSystemCore::IsRadioEnabled>, "IsRadioEnabled"},
+        {7, C<&IBtmSystemCore::AcquireRadioEvent>, "AcquireRadioEvent"},
+        {8, nullptr, "AcquireGamepadPairingEvent"},
+        {9, nullptr, "IsGamepadPairingStarted"},
+        {10, nullptr, "StartAudioDeviceDiscovery"},
+        {11, nullptr, "StopAudioDeviceDiscovery"},
+        {12, nullptr, "IsDiscoveryingAudioDevice"},
+        {13, nullptr, "GetDiscoveredAudioDevice"},
+        {14, C<&IBtmSystemCore::AcquireAudioDeviceConnectionEvent>, "AcquireAudioDeviceConnectionEvent"},
+        {15, nullptr, "ConnectAudioDevice"},
+        {16, nullptr, "IsConnectingAudioDevice"},
+        {17, C<&IBtmSystemCore::GetConnectedAudioDevices>, "GetConnectedAudioDevices"},
+        {18, nullptr, "DisconnectAudioDevice"},
+        {19, nullptr, "AcquirePairedAudioDeviceInfoChangedEvent"},
+        {20, C<&IBtmSystemCore::GetPairedAudioDevices>, "GetPairedAudioDevices"},
+        {21, nullptr, "RemoveAudioDevicePairing"},
+        {22, C<&IBtmSystemCore::RequestAudioDeviceConnectionRejection>, "RequestAudioDeviceConnectionRejection"},
+        {23, C<&IBtmSystemCore::CancelAudioDeviceConnectionRejection>, "CancelAudioDeviceConnectionRejection"}
+    };
+    // clang-format on
+
+    RegisterHandlers(functions);
+    radio_event = service_context.CreateEvent("IBtmSystemCore::RadioEvent");
+    audio_device_connection_event =
+        service_context.CreateEvent("IBtmSystemCore::AudioDeviceConnectionEvent");
+
+    m_set_sys =
+        system.ServiceManager().GetService<Service::Set::ISystemSettingsServer>("set:sys", true);
+}
+
+IBtmSystemCore::~IBtmSystemCore() {
+    service_context.CloseEvent(radio_event);
+    service_context.CloseEvent(audio_device_connection_event);
+}
+
+Result IBtmSystemCore::StartGamepadPairing() {
+    LOG_WARNING(Service_BTM, "(STUBBED) called");
+    R_SUCCEED();
+}
+
+Result IBtmSystemCore::CancelGamepadPairing() {
+    LOG_WARNING(Service_BTM, "(STUBBED) called");
+    R_SUCCEED();
+}
+
+Result IBtmSystemCore::EnableRadio() {
+    LOG_DEBUG(Service_BTM, "called");
+
+    R_RETURN(m_set_sys->SetBluetoothEnableFlag(true));
+}
+Result IBtmSystemCore::DisableRadio() {
+    LOG_DEBUG(Service_BTM, "called");
+
+    R_RETURN(m_set_sys->SetBluetoothEnableFlag(false));
+}
+
+Result IBtmSystemCore::IsRadioEnabled(Out<bool> out_is_enabled) {
+    LOG_DEBUG(Service_BTM, "called");
+
+    R_RETURN(m_set_sys->GetBluetoothEnableFlag(out_is_enabled));
+}
+
+Result IBtmSystemCore::AcquireRadioEvent(Out<bool> out_is_valid,
+                                         OutCopyHandle<Kernel::KReadableEvent> out_event) {
+    LOG_WARNING(Service_BTM, "(STUBBED) called");
+
+    *out_is_valid = true;
+    *out_event = &radio_event->GetReadableEvent();
+    R_SUCCEED();
+}
+
+Result IBtmSystemCore::AcquireAudioDeviceConnectionEvent(
+    OutCopyHandle<Kernel::KReadableEvent> out_event) {
+    LOG_WARNING(Service_BTM, "(STUBBED) called");
+
+    *out_event = &audio_device_connection_event->GetReadableEvent();
+    R_SUCCEED();
+}
+
+Result IBtmSystemCore::GetConnectedAudioDevices(
+    Out<s32> out_count, OutArray<std::array<u8, 0xFF>, BufferAttr_HipcPointer> out_audio_devices) {
+    LOG_WARNING(Service_BTM, "(STUBBED) called");
+
+    *out_count = 0;
+    R_SUCCEED();
+}
+
+Result IBtmSystemCore::GetPairedAudioDevices(
+    Out<s32> out_count, OutArray<std::array<u8, 0xFF>, BufferAttr_HipcPointer> out_audio_devices) {
+    LOG_WARNING(Service_BTM, "(STUBBED) called");
+
+    *out_count = 0;
+    R_SUCCEED();
+}
+
+Result IBtmSystemCore::RequestAudioDeviceConnectionRejection(ClientAppletResourceUserId aruid) {
+    LOG_WARNING(Service_BTM, "(STUBBED) called, applet_resource_user_id={}", aruid.pid);
+    R_SUCCEED();
+}
+
+Result IBtmSystemCore::CancelAudioDeviceConnectionRejection(ClientAppletResourceUserId aruid) {
+    LOG_WARNING(Service_BTM, "(STUBBED) called, applet_resource_user_id={}", aruid.pid);
+    R_SUCCEED();
+}
+
+} // namespace Service::BTM
diff --git a/src/core/hle/service/btm/btm_system_core.h b/src/core/hle/service/btm/btm_system_core.h
new file mode 100644
index 000000000..06498b21e
--- /dev/null
+++ b/src/core/hle/service/btm/btm_system_core.h
@@ -0,0 +1,60 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include "core/hle/service/cmif_types.h"
+#include "core/hle/service/kernel_helpers.h"
+#include "core/hle/service/service.h"
+
+namespace Kernel {
+class KEvent;
+class KReadableEvent;
+} // namespace Kernel
+
+namespace Core {
+class System;
+}
+
+namespace Service::Set {
+class ISystemSettingsServer;
+}
+
+namespace Service::BTM {
+
+class IBtmSystemCore final : public ServiceFramework<IBtmSystemCore> {
+public:
+    explicit IBtmSystemCore(Core::System& system_);
+    ~IBtmSystemCore() override;
+
+private:
+    Result StartGamepadPairing();
+    Result CancelGamepadPairing();
+    Result EnableRadio();
+    Result DisableRadio();
+    Result IsRadioEnabled(Out<bool> out_is_enabled);
+
+    Result AcquireRadioEvent(Out<bool> out_is_valid,
+                             OutCopyHandle<Kernel::KReadableEvent> out_event);
+
+    Result AcquireAudioDeviceConnectionEvent(OutCopyHandle<Kernel::KReadableEvent> out_event);
+
+    Result GetConnectedAudioDevices(
+        Out<s32> out_count,
+        OutArray<std::array<u8, 0xFF>, BufferAttr_HipcPointer> out_audio_devices);
+
+    Result GetPairedAudioDevices(
+        Out<s32> out_count,
+        OutArray<std::array<u8, 0xFF>, BufferAttr_HipcPointer> out_audio_devices);
+
+    Result RequestAudioDeviceConnectionRejection(ClientAppletResourceUserId aruid);
+    Result CancelAudioDeviceConnectionRejection(ClientAppletResourceUserId aruid);
+
+    KernelHelpers::ServiceContext service_context;
+
+    Kernel::KEvent* radio_event;
+    Kernel::KEvent* audio_device_connection_event;
+    std::shared_ptr<Service::Set::ISystemSettingsServer> m_set_sys;
+};
+
+} // namespace Service::BTM
diff --git a/src/core/hle/service/btm/btm_user.cpp b/src/core/hle/service/btm/btm_user.cpp
new file mode 100644
index 000000000..d2e228f8d
--- /dev/null
+++ b/src/core/hle/service/btm/btm_user.cpp
@@ -0,0 +1,30 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "common/logging/log.h"
+#include "core/hle/service/btm/btm_user.h"
+#include "core/hle/service/btm/btm_user_core.h"
+#include "core/hle/service/cmif_serialization.h"
+
+namespace Service::BTM {
+
+IBtmUser::IBtmUser(Core::System& system_) : ServiceFramework{system_, "btm:u"} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0, C<&IBtmUser::GetCore>, "GetCore"},
+    };
+    // clang-format on
+
+    RegisterHandlers(functions);
+}
+
+IBtmUser::~IBtmUser() = default;
+
+Result IBtmUser::GetCore(OutInterface<IBtmUserCore> out_interface) {
+    LOG_WARNING(Service_BTM, "called");
+
+    *out_interface = std::make_shared<IBtmUserCore>(system);
+    R_SUCCEED();
+}
+
+} // namespace Service::BTM
diff --git a/src/core/hle/service/btm/btm_user.h b/src/core/hle/service/btm/btm_user.h
new file mode 100644
index 000000000..d9ee5db45
--- /dev/null
+++ b/src/core/hle/service/btm/btm_user.h
@@ -0,0 +1,25 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include "core/hle/service/cmif_types.h"
+#include "core/hle/service/service.h"
+
+namespace Core {
+class System;
+}
+
+namespace Service::BTM {
+class IBtmUserCore;
+
+class IBtmUser final : public ServiceFramework<IBtmUser> {
+public:
+    explicit IBtmUser(Core::System& system_);
+    ~IBtmUser() override;
+
+private:
+    Result GetCore(OutInterface<IBtmUserCore> out_interface);
+};
+
+} // namespace Service::BTM
diff --git a/src/core/hle/service/btm/btm_user_core.cpp b/src/core/hle/service/btm/btm_user_core.cpp
new file mode 100644
index 000000000..6f9fa589b
--- /dev/null
+++ b/src/core/hle/service/btm/btm_user_core.cpp
@@ -0,0 +1,103 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include <memory>
+
+#include "common/logging/log.h"
+#include "core/core.h"
+#include "core/hle/kernel/k_event.h"
+#include "core/hle/service/btm/btm_user_core.h"
+#include "core/hle/service/cmif_serialization.h"
+
+namespace Service::BTM {
+
+IBtmUserCore::IBtmUserCore(Core::System& system_)
+    : ServiceFramework{system_, "IBtmUserCore"}, service_context{system_, "IBtmUserCore"} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0, C<&IBtmUserCore::AcquireBleScanEvent>, "AcquireBleScanEvent"},
+        {1, nullptr, "GetBleScanFilterParameter"},
+        {2, nullptr, "GetBleScanFilterParameter2"},
+        {3, nullptr, "StartBleScanForGeneral"},
+        {4, nullptr, "StopBleScanForGeneral"},
+        {5, nullptr, "GetBleScanResultsForGeneral"},
+        {6, nullptr, "StartBleScanForPaired"},
+        {7, nullptr, "StopBleScanForPaired"},
+        {8, nullptr, "StartBleScanForSmartDevice"},
+        {9, nullptr, "StopBleScanForSmartDevice"},
+        {10, nullptr, "GetBleScanResultsForSmartDevice"},
+        {17, C<&IBtmUserCore::AcquireBleConnectionEvent>, "AcquireBleConnectionEvent"},
+        {18, nullptr, "BleConnect"},
+        {19, nullptr, "BleDisconnect"},
+        {20, nullptr, "BleGetConnectionState"},
+        {21, nullptr, "AcquireBlePairingEvent"},
+        {22, nullptr, "BlePairDevice"},
+        {23, nullptr, "BleUnPairDevice"},
+        {24, nullptr, "BleUnPairDevice2"},
+        {25, nullptr, "BleGetPairedDevices"},
+        {26, C<&IBtmUserCore::AcquireBleServiceDiscoveryEvent>, "AcquireBleServiceDiscoveryEvent"},
+        {27, nullptr, "GetGattServices"},
+        {28, nullptr, "GetGattService"},
+        {29, nullptr, "GetGattIncludedServices"},
+        {30, nullptr, "GetBelongingGattService"},
+        {31, nullptr, "GetGattCharacteristics"},
+        {32, nullptr, "GetGattDescriptors"},
+        {33, C<&IBtmUserCore::AcquireBleMtuConfigEvent>, "AcquireBleMtuConfigEvent"},
+        {34, nullptr, "ConfigureBleMtu"},
+        {35, nullptr, "GetBleMtu"},
+        {36, nullptr, "RegisterBleGattDataPath"},
+        {37, nullptr, "UnregisterBleGattDataPath"},
+    };
+    // clang-format on
+    RegisterHandlers(functions);
+
+    scan_event = service_context.CreateEvent("IBtmUserCore:ScanEvent");
+    connection_event = service_context.CreateEvent("IBtmUserCore:ConnectionEvent");
+    service_discovery_event = service_context.CreateEvent("IBtmUserCore:DiscoveryEvent");
+    config_event = service_context.CreateEvent("IBtmUserCore:ConfigEvent");
+}
+
+IBtmUserCore::~IBtmUserCore() {
+    service_context.CloseEvent(scan_event);
+    service_context.CloseEvent(connection_event);
+    service_context.CloseEvent(service_discovery_event);
+    service_context.CloseEvent(config_event);
+}
+
+Result IBtmUserCore::AcquireBleScanEvent(Out<bool> out_is_valid,
+                                         OutCopyHandle<Kernel::KReadableEvent> out_event) {
+    LOG_WARNING(Service_BTM, "(STUBBED) called");
+
+    *out_is_valid = true;
+    *out_event = &scan_event->GetReadableEvent();
+    R_SUCCEED();
+}
+
+Result IBtmUserCore::AcquireBleConnectionEvent(Out<bool> out_is_valid,
+                                               OutCopyHandle<Kernel::KReadableEvent> out_event) {
+    LOG_WARNING(Service_BTM, "(STUBBED) called");
+
+    *out_is_valid = true;
+    *out_event = &connection_event->GetReadableEvent();
+    R_SUCCEED();
+}
+
+Result IBtmUserCore::AcquireBleServiceDiscoveryEvent(
+    Out<bool> out_is_valid, OutCopyHandle<Kernel::KReadableEvent> out_event) {
+    LOG_WARNING(Service_BTM, "(STUBBED) called");
+
+    *out_is_valid = true;
+    *out_event = &service_discovery_event->GetReadableEvent();
+    R_SUCCEED();
+}
+
+Result IBtmUserCore::AcquireBleMtuConfigEvent(Out<bool> out_is_valid,
+                                              OutCopyHandle<Kernel::KReadableEvent> out_event) {
+    LOG_WARNING(Service_BTM, "(STUBBED) called");
+
+    *out_is_valid = true;
+    *out_event = &config_event->GetReadableEvent();
+    R_SUCCEED();
+}
+
+} // namespace Service::BTM
diff --git a/src/core/hle/service/btm/btm_user_core.h b/src/core/hle/service/btm/btm_user_core.h
new file mode 100644
index 000000000..dc0a22e81
--- /dev/null
+++ b/src/core/hle/service/btm/btm_user_core.h
@@ -0,0 +1,47 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include "core/hle/service/cmif_types.h"
+#include "core/hle/service/kernel_helpers.h"
+#include "core/hle/service/service.h"
+
+namespace Kernel {
+class KEvent;
+class KReadableEvent;
+} // namespace Kernel
+
+namespace Core {
+class System;
+}
+
+namespace Service::BTM {
+
+class IBtmUserCore final : public ServiceFramework<IBtmUserCore> {
+public:
+    explicit IBtmUserCore(Core::System& system_);
+    ~IBtmUserCore() override;
+
+private:
+    Result AcquireBleScanEvent(Out<bool> out_is_valid,
+                               OutCopyHandle<Kernel::KReadableEvent> out_event);
+
+    Result AcquireBleConnectionEvent(Out<bool> out_is_valid,
+                                     OutCopyHandle<Kernel::KReadableEvent> out_event);
+
+    Result AcquireBleServiceDiscoveryEvent(Out<bool> out_is_valid,
+                                           OutCopyHandle<Kernel::KReadableEvent> out_event);
+
+    Result AcquireBleMtuConfigEvent(Out<bool> out_is_valid,
+                                    OutCopyHandle<Kernel::KReadableEvent> out_event);
+
+    KernelHelpers::ServiceContext service_context;
+
+    Kernel::KEvent* scan_event;
+    Kernel::KEvent* connection_event;
+    Kernel::KEvent* service_discovery_event;
+    Kernel::KEvent* config_event;
+};
+
+} // namespace Service::BTM
diff --git a/src/core/hle/service/filesystem/fsp/fs_i_directory.cpp b/src/core/hle/service/filesystem/fsp/fs_i_directory.cpp
index 39690018b..8483394d0 100644
--- a/src/core/hle/service/filesystem/fsp/fs_i_directory.cpp
+++ b/src/core/hle/service/filesystem/fsp/fs_i_directory.cpp
@@ -3,82 +3,34 @@
 
 #include "core/file_sys/fs_filesystem.h"
 #include "core/file_sys/savedata_factory.h"
+#include "core/hle/service/cmif_serialization.h"
 #include "core/hle/service/filesystem/fsp/fs_i_directory.h"
-#include "core/hle/service/ipc_helpers.h"
 
 namespace Service::FileSystem {
 
-template <typename T>
-static void BuildEntryIndex(std::vector<FileSys::DirectoryEntry>& entries,
-                            const std::vector<T>& new_data, FileSys::DirectoryEntryType type) {
-    entries.reserve(entries.size() + new_data.size());
-
-    for (const auto& new_entry : new_data) {
-        auto name = new_entry->GetName();
-
-        if (type == FileSys::DirectoryEntryType::File &&
-            name == FileSys::GetSaveDataSizeFileName()) {
-            continue;
-        }
-
-        entries.emplace_back(name, static_cast<s8>(type),
-                             type == FileSys::DirectoryEntryType::Directory ? 0
-                                                                            : new_entry->GetSize());
-    }
-}
-
-IDirectory::IDirectory(Core::System& system_, FileSys::VirtualDir backend_,
+IDirectory::IDirectory(Core::System& system_, FileSys::VirtualDir directory_,
                        FileSys::OpenDirectoryMode mode)
-    : ServiceFramework{system_, "IDirectory"}, backend(std::move(backend_)) {
+    : ServiceFramework{system_, "IDirectory"},
+      backend(std::make_unique<FileSys::Fsa::IDirectory>(directory_, mode)) {
     static const FunctionInfo functions[] = {
-        {0, &IDirectory::Read, "Read"},
-        {1, &IDirectory::GetEntryCount, "GetEntryCount"},
+        {0, D<&IDirectory::Read>, "Read"},
+        {1, D<&IDirectory::GetEntryCount>, "GetEntryCount"},
     };
     RegisterHandlers(functions);
-
-    // TODO(DarkLordZach): Verify that this is the correct behavior.
-    // Build entry index now to save time later.
-    if (True(mode & FileSys::OpenDirectoryMode::Directory)) {
-        BuildEntryIndex(entries, backend->GetSubdirectories(),
-                        FileSys::DirectoryEntryType::Directory);
-    }
-    if (True(mode & FileSys::OpenDirectoryMode::File)) {
-        BuildEntryIndex(entries, backend->GetFiles(), FileSys::DirectoryEntryType::File);
-    }
 }
 
-void IDirectory::Read(HLERequestContext& ctx) {
+Result IDirectory::Read(
+    Out<s64> out_count,
+    const OutArray<FileSys::DirectoryEntry, BufferAttr_HipcMapAlias> out_entries) {
     LOG_DEBUG(Service_FS, "called.");
 
-    // Calculate how many entries we can fit in the output buffer
-    const u64 count_entries = ctx.GetWriteBufferNumElements<FileSys::DirectoryEntry>();
-
-    // Cap at total number of entries.
-    const u64 actual_entries = std::min(count_entries, entries.size() - next_entry_index);
-
-    // Determine data start and end
-    const auto* begin = reinterpret_cast<u8*>(entries.data() + next_entry_index);
-    const auto* end = reinterpret_cast<u8*>(entries.data() + next_entry_index + actual_entries);
-    const auto range_size = static_cast<std::size_t>(std::distance(begin, end));
-
-    next_entry_index += actual_entries;
-
-    // Write the data to memory
-    ctx.WriteBuffer(begin, range_size);
-
-    IPC::ResponseBuilder rb{ctx, 4};
-    rb.Push(ResultSuccess);
-    rb.Push(actual_entries);
+    R_RETURN(backend->Read(out_count, out_entries.data(), out_entries.size()));
 }
 
-void IDirectory::GetEntryCount(HLERequestContext& ctx) {
+Result IDirectory::GetEntryCount(Out<s64> out_count) {
     LOG_DEBUG(Service_FS, "called");
 
-    u64 count = entries.size() - next_entry_index;
-
-    IPC::ResponseBuilder rb{ctx, 4};
-    rb.Push(ResultSuccess);
-    rb.Push(count);
+    R_RETURN(backend->GetEntryCount(out_count));
 }
 
 } // namespace Service::FileSystem
diff --git a/src/core/hle/service/filesystem/fsp/fs_i_directory.h b/src/core/hle/service/filesystem/fsp/fs_i_directory.h
index 793ecfcd7..b6251f7fd 100644
--- a/src/core/hle/service/filesystem/fsp/fs_i_directory.h
+++ b/src/core/hle/service/filesystem/fsp/fs_i_directory.h
@@ -3,7 +3,9 @@
 
 #pragma once
 
+#include "core/file_sys/fsa/fs_i_directory.h"
 #include "core/file_sys/vfs/vfs.h"
+#include "core/hle/service/cmif_types.h"
 #include "core/hle/service/filesystem/filesystem.h"
 #include "core/hle/service/service.h"
 
@@ -15,16 +17,15 @@ namespace Service::FileSystem {
 
 class IDirectory final : public ServiceFramework<IDirectory> {
 public:
-    explicit IDirectory(Core::System& system_, FileSys::VirtualDir backend_,
+    explicit IDirectory(Core::System& system_, FileSys::VirtualDir directory_,
                         FileSys::OpenDirectoryMode mode);
 
 private:
-    FileSys::VirtualDir backend;
-    std::vector<FileSys::DirectoryEntry> entries;
-    u64 next_entry_index = 0;
+    std::unique_ptr<FileSys::Fsa::IDirectory> backend;
 
-    void Read(HLERequestContext& ctx);
-    void GetEntryCount(HLERequestContext& ctx);
+    Result Read(Out<s64> out_count,
+                const OutArray<FileSys::DirectoryEntry, BufferAttr_HipcMapAlias> out_entries);
+    Result GetEntryCount(Out<s64> out_count);
 };
 
 } // namespace Service::FileSystem
diff --git a/src/core/hle/service/filesystem/fsp/fs_i_file.cpp b/src/core/hle/service/filesystem/fsp/fs_i_file.cpp
index 9a18f6ec5..a355d46ae 100644
--- a/src/core/hle/service/filesystem/fsp/fs_i_file.cpp
+++ b/src/core/hle/service/filesystem/fsp/fs_i_file.cpp
@@ -2,126 +2,64 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "core/file_sys/errors.h"
+#include "core/hle/service/cmif_serialization.h"
 #include "core/hle/service/filesystem/fsp/fs_i_file.h"
-#include "core/hle/service/ipc_helpers.h"
 
 namespace Service::FileSystem {
 
-IFile::IFile(Core::System& system_, FileSys::VirtualFile backend_)
-    : ServiceFramework{system_, "IFile"}, backend(std::move(backend_)) {
+IFile::IFile(Core::System& system_, FileSys::VirtualFile file_)
+    : ServiceFramework{system_, "IFile"}, backend{std::make_unique<FileSys::Fsa::IFile>(file_)} {
+    // clang-format off
     static const FunctionInfo functions[] = {
-        {0, &IFile::Read, "Read"},
-        {1, &IFile::Write, "Write"},
-        {2, &IFile::Flush, "Flush"},
-        {3, &IFile::SetSize, "SetSize"},
-        {4, &IFile::GetSize, "GetSize"},
+        {0, D<&IFile::Read>, "Read"},
+        {1, D<&IFile::Write>, "Write"},
+        {2, D<&IFile::Flush>, "Flush"},
+        {3, D<&IFile::SetSize>, "SetSize"},
+        {4, D<&IFile::GetSize>, "GetSize"},
         {5, nullptr, "OperateRange"},
         {6, nullptr, "OperateRangeWithBuffer"},
     };
+    // clang-format on
     RegisterHandlers(functions);
 }
 
-void IFile::Read(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    const u64 option = rp.Pop<u64>();
-    const s64 offset = rp.Pop<s64>();
-    const s64 length = rp.Pop<s64>();
-
-    LOG_DEBUG(Service_FS, "called, option={}, offset=0x{:X}, length={}", option, offset, length);
-
-    // Error checking
-    if (length < 0) {
-        LOG_ERROR(Service_FS, "Length is less than 0, length={}", length);
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(FileSys::ResultInvalidSize);
-        return;
-    }
-    if (offset < 0) {
-        LOG_ERROR(Service_FS, "Offset is less than 0, offset={}", offset);
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(FileSys::ResultInvalidOffset);
-        return;
-    }
+Result IFile::Read(
+    FileSys::ReadOption option, Out<s64> out_size, s64 offset,
+    const OutBuffer<BufferAttr_HipcMapAlias | BufferAttr_HipcMapTransferAllowsNonSecure> out_buffer,
+    s64 size) {
+    LOG_DEBUG(Service_FS, "called, option={}, offset=0x{:X}, length={}", option.value, offset,
+              size);
 
     // Read the data from the Storage backend
-    std::vector<u8> output = backend->ReadBytes(length, offset);
-
-    // Write the data to memory
-    ctx.WriteBuffer(output);
-
-    IPC::ResponseBuilder rb{ctx, 4};
-    rb.Push(ResultSuccess);
-    rb.Push(static_cast<u64>(output.size()));
+    R_RETURN(
+        backend->Read(reinterpret_cast<size_t*>(out_size.Get()), offset, out_buffer.data(), size));
 }
 
-void IFile::Write(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    const u64 option = rp.Pop<u64>();
-    const s64 offset = rp.Pop<s64>();
-    const s64 length = rp.Pop<s64>();
-
-    LOG_DEBUG(Service_FS, "called, option={}, offset=0x{:X}, length={}", option, offset, length);
-
-    // Error checking
-    if (length < 0) {
-        LOG_ERROR(Service_FS, "Length is less than 0, length={}", length);
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(FileSys::ResultInvalidSize);
-        return;
-    }
-    if (offset < 0) {
-        LOG_ERROR(Service_FS, "Offset is less than 0, offset={}", offset);
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(FileSys::ResultInvalidOffset);
-        return;
-    }
-
-    const auto data = ctx.ReadBuffer();
+Result IFile::Write(
+    const InBuffer<BufferAttr_HipcMapAlias | BufferAttr_HipcMapTransferAllowsNonSecure> buffer,
+    FileSys::WriteOption option, s64 offset, s64 size) {
+    LOG_DEBUG(Service_FS, "called, option={}, offset=0x{:X}, length={}", option.value, offset,
+              size);
 
-    ASSERT_MSG(static_cast<s64>(data.size()) <= length,
-               "Attempting to write more data than requested (requested={:016X}, actual={:016X}).",
-               length, data.size());
-
-    // Write the data to the Storage backend
-    const auto write_size =
-        static_cast<std::size_t>(std::distance(data.begin(), data.begin() + length));
-    const std::size_t written = backend->Write(data.data(), write_size, offset);
-
-    ASSERT_MSG(static_cast<s64>(written) == length,
-               "Could not write all bytes to file (requested={:016X}, actual={:016X}).", length,
-               written);
-
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(ResultSuccess);
+    R_RETURN(backend->Write(offset, buffer.data(), size, option));
 }
 
-void IFile::Flush(HLERequestContext& ctx) {
+Result IFile::Flush() {
     LOG_DEBUG(Service_FS, "called");
 
-    // Exists for SDK compatibiltity -- No need to flush file.
-
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(ResultSuccess);
+    R_RETURN(backend->Flush());
 }
 
-void IFile::SetSize(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-    const u64 size = rp.Pop<u64>();
+Result IFile::SetSize(s64 size) {
     LOG_DEBUG(Service_FS, "called, size={}", size);
 
-    backend->Resize(size);
-
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(ResultSuccess);
+    R_RETURN(backend->SetSize(size));
 }
 
-void IFile::GetSize(HLERequestContext& ctx) {
-    const u64 size = backend->GetSize();
-    LOG_DEBUG(Service_FS, "called, size={}", size);
+Result IFile::GetSize(Out<s64> out_size) {
+    LOG_DEBUG(Service_FS, "called");
 
-    IPC::ResponseBuilder rb{ctx, 4};
-    rb.Push(ResultSuccess);
-    rb.Push<u64>(size);
+    R_RETURN(backend->GetSize(out_size));
 }
 
 } // namespace Service::FileSystem
diff --git a/src/core/hle/service/filesystem/fsp/fs_i_file.h b/src/core/hle/service/filesystem/fsp/fs_i_file.h
index 5e5430c67..e8599ee2f 100644
--- a/src/core/hle/service/filesystem/fsp/fs_i_file.h
+++ b/src/core/hle/service/filesystem/fsp/fs_i_file.h
@@ -3,6 +3,8 @@
 
 #pragma once
 
+#include "core/file_sys/fsa/fs_i_file.h"
+#include "core/hle/service/cmif_types.h"
 #include "core/hle/service/filesystem/filesystem.h"
 #include "core/hle/service/service.h"
 
@@ -10,16 +12,21 @@ namespace Service::FileSystem {
 
 class IFile final : public ServiceFramework<IFile> {
 public:
-    explicit IFile(Core::System& system_, FileSys::VirtualFile backend_);
+    explicit IFile(Core::System& system_, FileSys::VirtualFile file_);
 
 private:
-    FileSys::VirtualFile backend;
+    std::unique_ptr<FileSys::Fsa::IFile> backend;
 
-    void Read(HLERequestContext& ctx);
-    void Write(HLERequestContext& ctx);
-    void Flush(HLERequestContext& ctx);
-    void SetSize(HLERequestContext& ctx);
-    void GetSize(HLERequestContext& ctx);
+    Result Read(FileSys::ReadOption option, Out<s64> out_size, s64 offset,
+                const OutBuffer<BufferAttr_HipcMapAlias | BufferAttr_HipcMapTransferAllowsNonSecure>
+                    out_buffer,
+                s64 size);
+    Result Write(
+        const InBuffer<BufferAttr_HipcMapAlias | BufferAttr_HipcMapTransferAllowsNonSecure> buffer,
+        FileSys::WriteOption option, s64 offset, s64 size);
+    Result Flush();
+    Result SetSize(s64 size);
+    Result GetSize(Out<s64> out_size);
 };
 
 } // namespace Service::FileSystem
diff --git a/src/core/hle/service/filesystem/fsp/fs_i_filesystem.cpp b/src/core/hle/service/filesystem/fsp/fs_i_filesystem.cpp
index efa394dd1..d881e144d 100644
--- a/src/core/hle/service/filesystem/fsp/fs_i_filesystem.cpp
+++ b/src/core/hle/service/filesystem/fsp/fs_i_filesystem.cpp
@@ -2,261 +2,172 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "common/string_util.h"
+#include "core/file_sys/fssrv/fssrv_sf_path.h"
+#include "core/hle/service/cmif_serialization.h"
 #include "core/hle/service/filesystem/fsp/fs_i_directory.h"
 #include "core/hle/service/filesystem/fsp/fs_i_file.h"
 #include "core/hle/service/filesystem/fsp/fs_i_filesystem.h"
-#include "core/hle/service/ipc_helpers.h"
 
 namespace Service::FileSystem {
 
-IFileSystem::IFileSystem(Core::System& system_, FileSys::VirtualDir backend_, SizeGetter size_)
-    : ServiceFramework{system_, "IFileSystem"}, backend{std::move(backend_)}, size{std::move(
-                                                                                  size_)} {
+IFileSystem::IFileSystem(Core::System& system_, FileSys::VirtualDir dir_, SizeGetter size_getter_)
+    : ServiceFramework{system_, "IFileSystem"}, backend{std::make_unique<FileSys::Fsa::IFileSystem>(
+                                                    dir_)},
+      size_getter{std::move(size_getter_)} {
     static const FunctionInfo functions[] = {
-        {0, &IFileSystem::CreateFile, "CreateFile"},
-        {1, &IFileSystem::DeleteFile, "DeleteFile"},
-        {2, &IFileSystem::CreateDirectory, "CreateDirectory"},
-        {3, &IFileSystem::DeleteDirectory, "DeleteDirectory"},
-        {4, &IFileSystem::DeleteDirectoryRecursively, "DeleteDirectoryRecursively"},
-        {5, &IFileSystem::RenameFile, "RenameFile"},
+        {0, D<&IFileSystem::CreateFile>, "CreateFile"},
+        {1, D<&IFileSystem::DeleteFile>, "DeleteFile"},
+        {2, D<&IFileSystem::CreateDirectory>, "CreateDirectory"},
+        {3, D<&IFileSystem::DeleteDirectory>, "DeleteDirectory"},
+        {4, D<&IFileSystem::DeleteDirectoryRecursively>, "DeleteDirectoryRecursively"},
+        {5, D<&IFileSystem::RenameFile>, "RenameFile"},
         {6, nullptr, "RenameDirectory"},
-        {7, &IFileSystem::GetEntryType, "GetEntryType"},
-        {8, &IFileSystem::OpenFile, "OpenFile"},
-        {9, &IFileSystem::OpenDirectory, "OpenDirectory"},
-        {10, &IFileSystem::Commit, "Commit"},
-        {11, &IFileSystem::GetFreeSpaceSize, "GetFreeSpaceSize"},
-        {12, &IFileSystem::GetTotalSpaceSize, "GetTotalSpaceSize"},
-        {13, &IFileSystem::CleanDirectoryRecursively, "CleanDirectoryRecursively"},
-        {14, &IFileSystem::GetFileTimeStampRaw, "GetFileTimeStampRaw"},
+        {7, D<&IFileSystem::GetEntryType>, "GetEntryType"},
+        {8, D<&IFileSystem::OpenFile>, "OpenFile"},
+        {9, D<&IFileSystem::OpenDirectory>, "OpenDirectory"},
+        {10, D<&IFileSystem::Commit>, "Commit"},
+        {11, D<&IFileSystem::GetFreeSpaceSize>, "GetFreeSpaceSize"},
+        {12, D<&IFileSystem::GetTotalSpaceSize>, "GetTotalSpaceSize"},
+        {13, D<&IFileSystem::CleanDirectoryRecursively>, "CleanDirectoryRecursively"},
+        {14, D<&IFileSystem::GetFileTimeStampRaw>, "GetFileTimeStampRaw"},
         {15, nullptr, "QueryEntry"},
-        {16, &IFileSystem::GetFileSystemAttribute, "GetFileSystemAttribute"},
+        {16, D<&IFileSystem::GetFileSystemAttribute>, "GetFileSystemAttribute"},
     };
     RegisterHandlers(functions);
 }
 
-void IFileSystem::CreateFile(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
+Result IFileSystem::CreateFile(const InLargeData<FileSys::Sf::Path, BufferAttr_HipcPointer> path,
+                               s32 option, s64 size) {
+    LOG_DEBUG(Service_FS, "called. file={}, option=0x{:X}, size=0x{:08X}", path->str, option, size);
 
-    const auto file_buffer = ctx.ReadBuffer();
-    const std::string name = Common::StringFromBuffer(file_buffer);
-
-    const u64 file_mode = rp.Pop<u64>();
-    const u32 file_size = rp.Pop<u32>();
-
-    LOG_DEBUG(Service_FS, "called. file={}, mode=0x{:X}, size=0x{:08X}", name, file_mode,
-              file_size);
-
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(backend.CreateFile(name, file_size));
+    R_RETURN(backend->CreateFile(FileSys::Path(path->str), size));
 }
 
-void IFileSystem::DeleteFile(HLERequestContext& ctx) {
-    const auto file_buffer = ctx.ReadBuffer();
-    const std::string name = Common::StringFromBuffer(file_buffer);
+Result IFileSystem::DeleteFile(const InLargeData<FileSys::Sf::Path, BufferAttr_HipcPointer> path) {
+    LOG_DEBUG(Service_FS, "called. file={}", path->str);
 
-    LOG_DEBUG(Service_FS, "called. file={}", name);
-
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(backend.DeleteFile(name));
+    R_RETURN(backend->DeleteFile(FileSys::Path(path->str)));
 }
 
-void IFileSystem::CreateDirectory(HLERequestContext& ctx) {
-    const auto file_buffer = ctx.ReadBuffer();
-    const std::string name = Common::StringFromBuffer(file_buffer);
-
-    LOG_DEBUG(Service_FS, "called. directory={}", name);
+Result IFileSystem::CreateDirectory(
+    const InLargeData<FileSys::Sf::Path, BufferAttr_HipcPointer> path) {
+    LOG_DEBUG(Service_FS, "called. directory={}", path->str);
 
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(backend.CreateDirectory(name));
+    R_RETURN(backend->CreateDirectory(FileSys::Path(path->str)));
 }
 
-void IFileSystem::DeleteDirectory(HLERequestContext& ctx) {
-    const auto file_buffer = ctx.ReadBuffer();
-    const std::string name = Common::StringFromBuffer(file_buffer);
-
-    LOG_DEBUG(Service_FS, "called. directory={}", name);
+Result IFileSystem::DeleteDirectory(
+    const InLargeData<FileSys::Sf::Path, BufferAttr_HipcPointer> path) {
+    LOG_DEBUG(Service_FS, "called. directory={}", path->str);
 
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(backend.DeleteDirectory(name));
+    R_RETURN(backend->DeleteDirectory(FileSys::Path(path->str)));
 }
 
-void IFileSystem::DeleteDirectoryRecursively(HLERequestContext& ctx) {
-    const auto file_buffer = ctx.ReadBuffer();
-    const std::string name = Common::StringFromBuffer(file_buffer);
+Result IFileSystem::DeleteDirectoryRecursively(
+    const InLargeData<FileSys::Sf::Path, BufferAttr_HipcPointer> path) {
+    LOG_DEBUG(Service_FS, "called. directory={}", path->str);
 
-    LOG_DEBUG(Service_FS, "called. directory={}", name);
-
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(backend.DeleteDirectoryRecursively(name));
+    R_RETURN(backend->DeleteDirectoryRecursively(FileSys::Path(path->str)));
 }
 
-void IFileSystem::CleanDirectoryRecursively(HLERequestContext& ctx) {
-    const auto file_buffer = ctx.ReadBuffer();
-    const std::string name = Common::StringFromBuffer(file_buffer);
-
-    LOG_DEBUG(Service_FS, "called. Directory: {}", name);
+Result IFileSystem::CleanDirectoryRecursively(
+    const InLargeData<FileSys::Sf::Path, BufferAttr_HipcPointer> path) {
+    LOG_DEBUG(Service_FS, "called. Directory: {}", path->str);
 
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(backend.CleanDirectoryRecursively(name));
+    R_RETURN(backend->CleanDirectoryRecursively(FileSys::Path(path->str)));
 }
 
-void IFileSystem::RenameFile(HLERequestContext& ctx) {
-    const std::string src_name = Common::StringFromBuffer(ctx.ReadBuffer(0));
-    const std::string dst_name = Common::StringFromBuffer(ctx.ReadBuffer(1));
-
-    LOG_DEBUG(Service_FS, "called. file '{}' to file '{}'", src_name, dst_name);
+Result IFileSystem::RenameFile(
+    const InLargeData<FileSys::Sf::Path, BufferAttr_HipcPointer> old_path,
+    const InLargeData<FileSys::Sf::Path, BufferAttr_HipcPointer> new_path) {
+    LOG_DEBUG(Service_FS, "called. file '{}' to file '{}'", old_path->str, new_path->str);
 
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(backend.RenameFile(src_name, dst_name));
+    R_RETURN(backend->RenameFile(FileSys::Path(old_path->str), FileSys::Path(new_path->str)));
 }
 
-void IFileSystem::OpenFile(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-
-    const auto file_buffer = ctx.ReadBuffer();
-    const std::string name = Common::StringFromBuffer(file_buffer);
-
-    const auto mode = static_cast<FileSys::OpenMode>(rp.Pop<u32>());
-
-    LOG_DEBUG(Service_FS, "called. file={}, mode={}", name, mode);
+Result IFileSystem::OpenFile(OutInterface<IFile> out_interface,
+                             const InLargeData<FileSys::Sf::Path, BufferAttr_HipcPointer> path,
+                             u32 mode) {
+    LOG_DEBUG(Service_FS, "called. file={}, mode={}", path->str, mode);
 
     FileSys::VirtualFile vfs_file{};
-    auto result = backend.OpenFile(&vfs_file, name, mode);
-    if (result != ResultSuccess) {
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(result);
-        return;
-    }
-
-    auto file = std::make_shared<IFile>(system, vfs_file);
-
-    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
-    rb.Push(ResultSuccess);
-    rb.PushIpcInterface<IFile>(std::move(file));
-}
-
-void IFileSystem::OpenDirectory(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
+    R_TRY(backend->OpenFile(&vfs_file, FileSys::Path(path->str),
+                            static_cast<FileSys::OpenMode>(mode)));
 
-    const auto file_buffer = ctx.ReadBuffer();
-    const std::string name = Common::StringFromBuffer(file_buffer);
-    const auto mode = rp.PopRaw<FileSys::OpenDirectoryMode>();
+    *out_interface = std::make_shared<IFile>(system, vfs_file);
+    R_SUCCEED();
+}
 
-    LOG_DEBUG(Service_FS, "called. directory={}, mode={}", name, mode);
+Result IFileSystem::OpenDirectory(OutInterface<IDirectory> out_interface,
+                                  const InLargeData<FileSys::Sf::Path, BufferAttr_HipcPointer> path,
+                                  u32 mode) {
+    LOG_DEBUG(Service_FS, "called. directory={}, mode={}", path->str, mode);
 
     FileSys::VirtualDir vfs_dir{};
-    auto result = backend.OpenDirectory(&vfs_dir, name);
-    if (result != ResultSuccess) {
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(result);
-        return;
-    }
-
-    auto directory = std::make_shared<IDirectory>(system, vfs_dir, mode);
-
-    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
-    rb.Push(ResultSuccess);
-    rb.PushIpcInterface<IDirectory>(std::move(directory));
-}
+    R_TRY(backend->OpenDirectory(&vfs_dir, FileSys::Path(path->str),
+                                 static_cast<FileSys::OpenDirectoryMode>(mode)));
 
-void IFileSystem::GetEntryType(HLERequestContext& ctx) {
-    const auto file_buffer = ctx.ReadBuffer();
-    const std::string name = Common::StringFromBuffer(file_buffer);
+    *out_interface = std::make_shared<IDirectory>(system, vfs_dir,
+                                                  static_cast<FileSys::OpenDirectoryMode>(mode));
+    R_SUCCEED();
+}
 
-    LOG_DEBUG(Service_FS, "called. file={}", name);
+Result IFileSystem::GetEntryType(
+    Out<u32> out_type, const InLargeData<FileSys::Sf::Path, BufferAttr_HipcPointer> path) {
+    LOG_DEBUG(Service_FS, "called. file={}", path->str);
 
     FileSys::DirectoryEntryType vfs_entry_type{};
-    auto result = backend.GetEntryType(&vfs_entry_type, name);
-    if (result != ResultSuccess) {
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(result);
-        return;
-    }
-
-    IPC::ResponseBuilder rb{ctx, 3};
-    rb.Push(ResultSuccess);
-    rb.Push<u32>(static_cast<u32>(vfs_entry_type));
+    R_TRY(backend->GetEntryType(&vfs_entry_type, FileSys::Path(path->str)));
+
+    *out_type = static_cast<u32>(vfs_entry_type);
+    R_SUCCEED();
 }
 
-void IFileSystem::Commit(HLERequestContext& ctx) {
+Result IFileSystem::Commit() {
     LOG_WARNING(Service_FS, "(STUBBED) called");
 
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(ResultSuccess);
+    R_SUCCEED();
 }
 
-void IFileSystem::GetFreeSpaceSize(HLERequestContext& ctx) {
+Result IFileSystem::GetFreeSpaceSize(
+    Out<s64> out_size, const InLargeData<FileSys::Sf::Path, BufferAttr_HipcPointer> path) {
     LOG_DEBUG(Service_FS, "called");
 
-    IPC::ResponseBuilder rb{ctx, 4};
-    rb.Push(ResultSuccess);
-    rb.Push(size.get_free_size());
+    *out_size = size_getter.get_free_size();
+    R_SUCCEED();
 }
 
-void IFileSystem::GetTotalSpaceSize(HLERequestContext& ctx) {
+Result IFileSystem::GetTotalSpaceSize(
+    Out<s64> out_size, const InLargeData<FileSys::Sf::Path, BufferAttr_HipcPointer> path) {
     LOG_DEBUG(Service_FS, "called");
 
-    IPC::ResponseBuilder rb{ctx, 4};
-    rb.Push(ResultSuccess);
-    rb.Push(size.get_total_size());
+    *out_size = size_getter.get_total_size();
+    R_SUCCEED();
 }
 
-void IFileSystem::GetFileTimeStampRaw(HLERequestContext& ctx) {
-    const auto file_buffer = ctx.ReadBuffer();
-    const std::string name = Common::StringFromBuffer(file_buffer);
-
-    LOG_WARNING(Service_FS, "(Partial Implementation) called. file={}", name);
+Result IFileSystem::GetFileTimeStampRaw(
+    Out<FileSys::FileTimeStampRaw> out_timestamp,
+    const InLargeData<FileSys::Sf::Path, BufferAttr_HipcPointer> path) {
+    LOG_WARNING(Service_FS, "(Partial Implementation) called. file={}", path->str);
 
     FileSys::FileTimeStampRaw vfs_timestamp{};
-    auto result = backend.GetFileTimeStampRaw(&vfs_timestamp, name);
-    if (result != ResultSuccess) {
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(result);
-        return;
-    }
-
-    IPC::ResponseBuilder rb{ctx, 10};
-    rb.Push(ResultSuccess);
-    rb.PushRaw(vfs_timestamp);
+    R_TRY(backend->GetFileTimeStampRaw(&vfs_timestamp, FileSys::Path(path->str)));
+
+    *out_timestamp = vfs_timestamp;
+    R_SUCCEED();
 }
 
-void IFileSystem::GetFileSystemAttribute(HLERequestContext& ctx) {
+Result IFileSystem::GetFileSystemAttribute(Out<FileSys::FileSystemAttribute> out_attribute) {
     LOG_WARNING(Service_FS, "(STUBBED) called");
 
-    struct FileSystemAttribute {
-        u8 dir_entry_name_length_max_defined;
-        u8 file_entry_name_length_max_defined;
-        u8 dir_path_name_length_max_defined;
-        u8 file_path_name_length_max_defined;
-        INSERT_PADDING_BYTES_NOINIT(0x5);
-        u8 utf16_dir_entry_name_length_max_defined;
-        u8 utf16_file_entry_name_length_max_defined;
-        u8 utf16_dir_path_name_length_max_defined;
-        u8 utf16_file_path_name_length_max_defined;
-        INSERT_PADDING_BYTES_NOINIT(0x18);
-        s32 dir_entry_name_length_max;
-        s32 file_entry_name_length_max;
-        s32 dir_path_name_length_max;
-        s32 file_path_name_length_max;
-        INSERT_PADDING_WORDS_NOINIT(0x5);
-        s32 utf16_dir_entry_name_length_max;
-        s32 utf16_file_entry_name_length_max;
-        s32 utf16_dir_path_name_length_max;
-        s32 utf16_file_path_name_length_max;
-        INSERT_PADDING_WORDS_NOINIT(0x18);
-        INSERT_PADDING_WORDS_NOINIT(0x1);
-    };
-    static_assert(sizeof(FileSystemAttribute) == 0xc0, "FileSystemAttribute has incorrect size");
-
-    FileSystemAttribute savedata_attribute{};
+    FileSys::FileSystemAttribute savedata_attribute{};
     savedata_attribute.dir_entry_name_length_max_defined = true;
     savedata_attribute.file_entry_name_length_max_defined = true;
     savedata_attribute.dir_entry_name_length_max = 0x40;
     savedata_attribute.file_entry_name_length_max = 0x40;
 
-    IPC::ResponseBuilder rb{ctx, 50};
-    rb.Push(ResultSuccess);
-    rb.PushRaw(savedata_attribute);
+    *out_attribute = savedata_attribute;
+    R_SUCCEED();
 }
 
 } // namespace Service::FileSystem
diff --git a/src/core/hle/service/filesystem/fsp/fs_i_filesystem.h b/src/core/hle/service/filesystem/fsp/fs_i_filesystem.h
index b1f3ab5dd..dd069f36f 100644
--- a/src/core/hle/service/filesystem/fsp/fs_i_filesystem.h
+++ b/src/core/hle/service/filesystem/fsp/fs_i_filesystem.h
@@ -3,36 +3,58 @@
 
 #pragma once
 
+#include "common/common_funcs.h"
+#include "core/file_sys/fs_filesystem.h"
+#include "core/file_sys/fsa/fs_i_filesystem.h"
 #include "core/file_sys/vfs/vfs.h"
+#include "core/hle/service/cmif_types.h"
 #include "core/hle/service/filesystem/filesystem.h"
 #include "core/hle/service/filesystem/fsp/fsp_types.h"
 #include "core/hle/service/service.h"
 
+namespace FileSys::Sf {
+struct Path;
+}
+
 namespace Service::FileSystem {
 
+class IFile;
+class IDirectory;
+
 class IFileSystem final : public ServiceFramework<IFileSystem> {
 public:
-    explicit IFileSystem(Core::System& system_, FileSys::VirtualDir backend_, SizeGetter size_);
-
-    void CreateFile(HLERequestContext& ctx);
-    void DeleteFile(HLERequestContext& ctx);
-    void CreateDirectory(HLERequestContext& ctx);
-    void DeleteDirectory(HLERequestContext& ctx);
-    void DeleteDirectoryRecursively(HLERequestContext& ctx);
-    void CleanDirectoryRecursively(HLERequestContext& ctx);
-    void RenameFile(HLERequestContext& ctx);
-    void OpenFile(HLERequestContext& ctx);
-    void OpenDirectory(HLERequestContext& ctx);
-    void GetEntryType(HLERequestContext& ctx);
-    void Commit(HLERequestContext& ctx);
-    void GetFreeSpaceSize(HLERequestContext& ctx);
-    void GetTotalSpaceSize(HLERequestContext& ctx);
-    void GetFileTimeStampRaw(HLERequestContext& ctx);
-    void GetFileSystemAttribute(HLERequestContext& ctx);
+    explicit IFileSystem(Core::System& system_, FileSys::VirtualDir dir_, SizeGetter size_getter_);
+
+    Result CreateFile(const InLargeData<FileSys::Sf::Path, BufferAttr_HipcPointer> path, s32 option,
+                      s64 size);
+    Result DeleteFile(const InLargeData<FileSys::Sf::Path, BufferAttr_HipcPointer> path);
+    Result CreateDirectory(const InLargeData<FileSys::Sf::Path, BufferAttr_HipcPointer> path);
+    Result DeleteDirectory(const InLargeData<FileSys::Sf::Path, BufferAttr_HipcPointer> path);
+    Result DeleteDirectoryRecursively(
+        const InLargeData<FileSys::Sf::Path, BufferAttr_HipcPointer> path);
+    Result CleanDirectoryRecursively(
+        const InLargeData<FileSys::Sf::Path, BufferAttr_HipcPointer> path);
+    Result RenameFile(const InLargeData<FileSys::Sf::Path, BufferAttr_HipcPointer> old_path,
+                      const InLargeData<FileSys::Sf::Path, BufferAttr_HipcPointer> new_path);
+    Result OpenFile(OutInterface<IFile> out_interface,
+                    const InLargeData<FileSys::Sf::Path, BufferAttr_HipcPointer> path, u32 mode);
+    Result OpenDirectory(OutInterface<IDirectory> out_interface,
+                         const InLargeData<FileSys::Sf::Path, BufferAttr_HipcPointer> path,
+                         u32 mode);
+    Result GetEntryType(Out<u32> out_type,
+                        const InLargeData<FileSys::Sf::Path, BufferAttr_HipcPointer> path);
+    Result Commit();
+    Result GetFreeSpaceSize(Out<s64> out_size,
+                            const InLargeData<FileSys::Sf::Path, BufferAttr_HipcPointer> path);
+    Result GetTotalSpaceSize(Out<s64> out_size,
+                             const InLargeData<FileSys::Sf::Path, BufferAttr_HipcPointer> path);
+    Result GetFileTimeStampRaw(Out<FileSys::FileTimeStampRaw> out_timestamp,
+                               const InLargeData<FileSys::Sf::Path, BufferAttr_HipcPointer> path);
+    Result GetFileSystemAttribute(Out<FileSys::FileSystemAttribute> out_attribute);
 
 private:
-    VfsDirectoryServiceWrapper backend;
-    SizeGetter size;
+    std::unique_ptr<FileSys::Fsa::IFileSystem> backend;
+    SizeGetter size_getter;
 };
 
 } // namespace Service::FileSystem
diff --git a/src/core/hle/service/ns/application_manager_interface.cpp b/src/core/hle/service/ns/application_manager_interface.cpp
index 2e3a44c0d..7a91727f9 100644
--- a/src/core/hle/service/ns/application_manager_interface.cpp
+++ b/src/core/hle/service/ns/application_manager_interface.cpp
@@ -436,14 +436,14 @@ Result IApplicationManagerInterface::GetApplicationViewWithPromotionInfo(
 
 Result IApplicationManagerInterface::GetApplicationRightsOnClient(
     OutArray<ApplicationRightsOnClient, BufferAttr_HipcMapAlias> out_rights, Out<u32> out_count,
-    Common::UUID account_id, u32 flags, u64 application_id) {
+    u32 flags, u64 application_id, Uid account_id) {
     LOG_WARNING(Service_NS, "(STUBBED) called, flags={}, application_id={:016X}, account_id={}",
-                flags, application_id, account_id.FormattedString());
+                flags, application_id, account_id.uuid.FormattedString());
 
     if (!out_rights.empty()) {
         ApplicationRightsOnClient rights{};
         rights.application_id = application_id;
-        rights.uid = account_id;
+        rights.uid = account_id.uuid;
         rights.flags = 0;
         rights.flags2 = 0;
 
diff --git a/src/core/hle/service/ns/application_manager_interface.h b/src/core/hle/service/ns/application_manager_interface.h
index 350ec37ce..f33d269b3 100644
--- a/src/core/hle/service/ns/application_manager_interface.h
+++ b/src/core/hle/service/ns/application_manager_interface.h
@@ -37,7 +37,7 @@ public:
         InArray<u64, BufferAttr_HipcMapAlias> application_ids);
     Result GetApplicationRightsOnClient(
         OutArray<ApplicationRightsOnClient, BufferAttr_HipcMapAlias> out_rights, Out<u32> out_count,
-        Common::UUID account_id, u32 flags, u64 application_id);
+        u32 flags, u64 application_id, Uid account_id);
     Result CheckSdCardMountStatus();
     Result GetSdCardMountStatusChangedEvent(OutCopyHandle<Kernel::KReadableEvent> out_event);
     Result GetFreeSpaceSize(Out<s64> out_free_space_size, FileSys::StorageId storage_id);
diff --git a/src/core/hle/service/ns/ns_types.h b/src/core/hle/service/ns/ns_types.h
index 38421b0f4..2dd664c4e 100644
--- a/src/core/hle/service/ns/ns_types.h
+++ b/src/core/hle/service/ns/ns_types.h
@@ -108,4 +108,9 @@ struct ContentPath {
 };
 static_assert(sizeof(ContentPath) == 0x10, "ContentPath has incorrect size.");
 
+struct Uid {
+    alignas(8) Common::UUID uuid;
+};
+static_assert(sizeof(Uid) == 0x10, "Uid has incorrect size.");
+
 } // namespace Service::NS
diff --git a/src/core/hle/service/ns/query_service.cpp b/src/core/hle/service/ns/query_service.cpp
index 946b7fa23..138400541 100644
--- a/src/core/hle/service/ns/query_service.cpp
+++ b/src/core/hle/service/ns/query_service.cpp
@@ -41,8 +41,7 @@ IQueryService::IQueryService(Core::System& system_) : ServiceFramework{system_,
 IQueryService::~IQueryService() = default;
 
 Result IQueryService::QueryPlayStatisticsByApplicationIdAndUserAccountId(
-    Out<PlayStatistics> out_play_statistics, bool unknown, Common::UUID account_id,
-    u64 application_id) {
+    Out<PlayStatistics> out_play_statistics, bool unknown, u64 application_id, Uid account_id) {
     // TODO(German77): Read statistics of the game
     *out_play_statistics = {
         .application_id = application_id,
@@ -50,7 +49,7 @@ Result IQueryService::QueryPlayStatisticsByApplicationIdAndUserAccountId(
     };
 
     LOG_WARNING(Service_NS, "(STUBBED) called. unknown={}. application_id={:016X}, account_id={}",
-                unknown, application_id, account_id.FormattedString());
+                unknown, application_id, account_id.uuid.FormattedString());
     R_SUCCEED();
 }
 
diff --git a/src/core/hle/service/ns/query_service.h b/src/core/hle/service/ns/query_service.h
index 6cdbfa277..c4c82b752 100644
--- a/src/core/hle/service/ns/query_service.h
+++ b/src/core/hle/service/ns/query_service.h
@@ -5,6 +5,7 @@
 
 #include "common/uuid.h"
 #include "core/hle/service/cmif_types.h"
+#include "core/hle/service/ns/ns_types.h"
 #include "core/hle/service/service.h"
 
 namespace Service::NS {
@@ -29,8 +30,7 @@ public:
 
 private:
     Result QueryPlayStatisticsByApplicationIdAndUserAccountId(
-        Out<PlayStatistics> out_play_statistics, bool unknown, Common::UUID account_id,
-        u64 application_id);
+        Out<PlayStatistics> out_play_statistics, bool unknown, u64 application_id, Uid account_id);
 };
 
 } // namespace Service::NS
diff --git a/src/core/hle/service/nvnflinger/display.h b/src/core/hle/service/nvnflinger/display.h
index f27cbf144..40aa59787 100644
--- a/src/core/hle/service/nvnflinger/display.h
+++ b/src/core/hle/service/nvnflinger/display.h
@@ -3,8 +3,6 @@
 
 #pragma once
 
-#include <list>
-
 #include "core/hle/service/nvnflinger/buffer_item_consumer.h"
 #include "core/hle/service/nvnflinger/hwc_layer.h"
 
@@ -26,18 +24,12 @@ struct Layer {
 };
 
 struct LayerStack {
-    std::list<Layer> layers;
-};
-
-struct Display {
-    explicit Display(u64 id_) {
-        id = id_;
-    }
+    std::vector<std::shared_ptr<Layer>> layers;
 
-    Layer* FindLayer(s32 consumer_id) {
-        for (auto& layer : stack.layers) {
-            if (layer.consumer_id == consumer_id) {
-                return &layer;
+    std::shared_ptr<Layer> FindLayer(s32 consumer_id) {
+        for (auto& layer : layers) {
+            if (layer->consumer_id == consumer_id) {
+                return layer;
             }
         }
 
@@ -45,7 +37,13 @@ struct Display {
     }
 
     bool HasLayers() {
-        return !stack.layers.empty();
+        return !layers.empty();
+    }
+};
+
+struct Display {
+    explicit Display(u64 id_) {
+        id = id_;
     }
 
     u64 id;
diff --git a/src/core/hle/service/nvnflinger/hardware_composer.cpp b/src/core/hle/service/nvnflinger/hardware_composer.cpp
index 02215a786..f2dfe85a9 100644
--- a/src/core/hle/service/nvnflinger/hardware_composer.cpp
+++ b/src/core/hle/service/nvnflinger/hardware_composer.cpp
@@ -55,10 +55,10 @@ u32 HardwareComposer::ComposeLocked(f32* out_speed_scale, Display& display,
 
     // Acquire all necessary framebuffers.
     for (auto& layer : display.stack.layers) {
-        auto consumer_id = layer.consumer_id;
+        auto consumer_id = layer->consumer_id;
 
         // Try to fetch the framebuffer (either new or stale).
-        const auto result = this->CacheFramebufferLocked(layer, consumer_id);
+        const auto result = this->CacheFramebufferLocked(*layer, consumer_id);
 
         // If we failed, skip this layer.
         if (result == CacheStatus::NoBufferAvailable) {
@@ -75,7 +75,7 @@ u32 HardwareComposer::ComposeLocked(f32* out_speed_scale, Display& display,
         const auto& igbp_buffer = *item.graphic_buffer;
 
         // TODO: get proper Z-index from layer
-        if (layer.visible) {
+        if (layer->visible) {
             composition_stack.emplace_back(HwcLayer{
                 .buffer_handle = igbp_buffer.BufferId(),
                 .offset = igbp_buffer.Offset(),
@@ -84,7 +84,7 @@ u32 HardwareComposer::ComposeLocked(f32* out_speed_scale, Display& display,
                 .height = igbp_buffer.Height(),
                 .stride = igbp_buffer.Stride(),
                 .z_index = 0,
-                .blending = layer.blending,
+                .blending = layer->blending,
                 .transform = static_cast<android::BufferTransformFlags>(item.transform),
                 .crop_rect = item.crop,
                 .acquire_fence = item.fence,
@@ -134,7 +134,7 @@ u32 HardwareComposer::ComposeLocked(f32* out_speed_scale, Display& display,
             continue;
         }
 
-        if (auto* layer = display.FindLayer(layer_id); layer != nullptr) {
+        if (const auto layer = display.stack.FindLayer(layer_id); layer != nullptr) {
             // TODO: support release fence
             // This is needed to prevent screen tearing
             layer->buffer_item_consumer->ReleaseBuffer(framebuffer.item, android::Fence::NoFence());
@@ -153,7 +153,7 @@ void HardwareComposer::RemoveLayerLocked(Display& display, ConsumerId consumer_i
     }
 
     // Try to release the buffer item.
-    auto* const layer = display.FindLayer(consumer_id);
+    const auto layer = display.stack.FindLayer(consumer_id);
     if (layer && it->second.is_acquired) {
         layer->buffer_item_consumer->ReleaseBuffer(it->second.item, android::Fence::NoFence());
     }
diff --git a/src/core/hle/service/nvnflinger/surface_flinger.cpp b/src/core/hle/service/nvnflinger/surface_flinger.cpp
index 41a705717..8362b65e5 100644
--- a/src/core/hle/service/nvnflinger/surface_flinger.cpp
+++ b/src/core/hle/service/nvnflinger/surface_flinger.cpp
@@ -36,7 +36,7 @@ void SurfaceFlinger::RemoveDisplay(u64 display_id) {
 bool SurfaceFlinger::ComposeDisplay(s32* out_swap_interval, f32* out_compose_speed_scale,
                                     u64 display_id) {
     auto* const display = this->FindDisplay(display_id);
-    if (!display || !display->HasLayers()) {
+    if (!display || !display->stack.HasLayers()) {
         return false;
     }
 
@@ -46,19 +46,34 @@ bool SurfaceFlinger::ComposeDisplay(s32* out_swap_interval, f32* out_compose_spe
     return true;
 }
 
-void SurfaceFlinger::AddLayerToDisplayStack(u64 display_id, s32 consumer_binder_id) {
-    auto* const display = this->FindDisplay(display_id);
+void SurfaceFlinger::CreateLayer(s32 consumer_binder_id) {
     auto binder = std::static_pointer_cast<android::BufferQueueConsumer>(
         m_server.TryGetBinder(consumer_binder_id));
-
-    if (!display || !binder) {
+    if (!binder) {
         return;
     }
 
     auto buffer_item_consumer = std::make_shared<android::BufferItemConsumer>(std::move(binder));
     buffer_item_consumer->Connect(false);
 
-    display->stack.layers.emplace_back(std::move(buffer_item_consumer), consumer_binder_id);
+    m_layers.layers.emplace_back(
+        std::make_shared<Layer>(std::move(buffer_item_consumer), consumer_binder_id));
+}
+
+void SurfaceFlinger::DestroyLayer(s32 consumer_binder_id) {
+    std::erase_if(m_layers.layers,
+                  [&](auto& layer) { return layer->consumer_id == consumer_binder_id; });
+}
+
+void SurfaceFlinger::AddLayerToDisplayStack(u64 display_id, s32 consumer_binder_id) {
+    auto* const display = this->FindDisplay(display_id);
+    auto layer = this->FindLayer(consumer_binder_id);
+
+    if (!display || !layer) {
+        return;
+    }
+
+    display->stack.layers.emplace_back(std::move(layer));
 }
 
 void SurfaceFlinger::RemoveLayerFromDisplayStack(u64 display_id, s32 consumer_binder_id) {
@@ -69,18 +84,18 @@ void SurfaceFlinger::RemoveLayerFromDisplayStack(u64 display_id, s32 consumer_bi
 
     m_composer.RemoveLayerLocked(*display, consumer_binder_id);
     std::erase_if(display->stack.layers,
-                  [&](auto& layer) { return layer.consumer_id == consumer_binder_id; });
+                  [&](auto& layer) { return layer->consumer_id == consumer_binder_id; });
 }
 
 void SurfaceFlinger::SetLayerVisibility(s32 consumer_binder_id, bool visible) {
-    if (auto* layer = this->FindLayer(consumer_binder_id); layer != nullptr) {
+    if (const auto layer = this->FindLayer(consumer_binder_id); layer != nullptr) {
         layer->visible = visible;
         return;
     }
 }
 
 void SurfaceFlinger::SetLayerBlending(s32 consumer_binder_id, LayerBlending blending) {
-    if (auto* layer = this->FindLayer(consumer_binder_id); layer != nullptr) {
+    if (const auto layer = this->FindLayer(consumer_binder_id); layer != nullptr) {
         layer->blending = blending;
         return;
     }
@@ -96,9 +111,9 @@ Display* SurfaceFlinger::FindDisplay(u64 display_id) {
     return nullptr;
 }
 
-Layer* SurfaceFlinger::FindLayer(s32 consumer_binder_id) {
-    for (auto& display : m_displays) {
-        if (auto* layer = display.FindLayer(consumer_binder_id); layer != nullptr) {
+std::shared_ptr<Layer> SurfaceFlinger::FindLayer(s32 consumer_binder_id) {
+    for (auto& layer : m_layers.layers) {
+        if (layer->consumer_id == consumer_binder_id) {
             return layer;
         }
     }
diff --git a/src/core/hle/service/nvnflinger/surface_flinger.h b/src/core/hle/service/nvnflinger/surface_flinger.h
index d8c53fbda..406281c83 100644
--- a/src/core/hle/service/nvnflinger/surface_flinger.h
+++ b/src/core/hle/service/nvnflinger/surface_flinger.h
@@ -36,6 +36,9 @@ public:
     void RemoveDisplay(u64 display_id);
     bool ComposeDisplay(s32* out_swap_interval, f32* out_compose_speed_scale, u64 display_id);
 
+    void CreateLayer(s32 consumer_binder_id);
+    void DestroyLayer(s32 consumer_binder_id);
+
     void AddLayerToDisplayStack(u64 display_id, s32 consumer_binder_id);
     void RemoveLayerFromDisplayStack(u64 display_id, s32 consumer_binder_id);
 
@@ -44,7 +47,7 @@ public:
 
 private:
     Display* FindDisplay(u64 display_id);
-    Layer* FindLayer(s32 consumer_binder_id);
+    std::shared_ptr<Layer> FindLayer(s32 consumer_binder_id);
 
 public:
     // TODO: these don't belong here
@@ -57,6 +60,7 @@ private:
     KernelHelpers::ServiceContext m_context;
 
     std::vector<Display> m_displays;
+    LayerStack m_layers;
     std::shared_ptr<Nvidia::Module> nvdrv;
     s32 disp_fd;
     HardwareComposer m_composer;
diff --git a/src/core/hle/service/psc/ovln/ovln_types.h b/src/core/hle/service/psc/ovln/ovln_types.h
new file mode 100644
index 000000000..343b05dcc
--- /dev/null
+++ b/src/core/hle/service/psc/ovln/ovln_types.h
@@ -0,0 +1,21 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "common/bit_field.h"
+#include "common/common_types.h"
+
+namespace Service::PSC {
+
+using OverlayNotification = std::array<u64, 0x10>;
+static_assert(sizeof(OverlayNotification) == 0x80, "OverlayNotification has incorrect size");
+
+union MessageFlags {
+    u64 raw;
+    BitField<0, 8, u64> message_type;
+    BitField<8, 8, u64> queue_type;
+};
+static_assert(sizeof(MessageFlags) == 0x8, "MessageFlags has incorrect size");
+
+} // namespace Service::PSC
diff --git a/src/core/hle/service/psc/ovln/receiver.cpp b/src/core/hle/service/psc/ovln/receiver.cpp
new file mode 100644
index 000000000..85f62816d
--- /dev/null
+++ b/src/core/hle/service/psc/ovln/receiver.cpp
@@ -0,0 +1,24 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/psc/ovln/receiver.h"
+
+namespace Service::PSC {
+
+IReceiver::IReceiver(Core::System& system_) : ServiceFramework{system_, "IReceiver"} {
+    // clang-format off
+        static const FunctionInfo functions[] = {
+            {0, nullptr, "AddSource"},
+            {1, nullptr, "RemoveSource"},
+            {2, nullptr, "GetReceiveEventHandle"},
+            {3, nullptr, "Receive"},
+            {4, nullptr, "ReceiveWithTick"},
+        };
+    // clang-format on
+
+    RegisterHandlers(functions);
+}
+
+IReceiver::~IReceiver() = default;
+
+} // namespace Service::PSC
diff --git a/src/core/hle/service/psc/ovln/receiver.h b/src/core/hle/service/psc/ovln/receiver.h
new file mode 100644
index 000000000..c47a4ff7e
--- /dev/null
+++ b/src/core/hle/service/psc/ovln/receiver.h
@@ -0,0 +1,16 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/hle/service/service.h"
+
+namespace Service::PSC {
+
+class IReceiver final : public ServiceFramework<IReceiver> {
+public:
+    explicit IReceiver(Core::System& system_);
+    ~IReceiver() override;
+};
+
+} // namespace Service::PSC
diff --git a/src/core/hle/service/psc/ovln/receiver_service.cpp b/src/core/hle/service/psc/ovln/receiver_service.cpp
new file mode 100644
index 000000000..bb988e905
--- /dev/null
+++ b/src/core/hle/service/psc/ovln/receiver_service.cpp
@@ -0,0 +1,28 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/cmif_serialization.h"
+#include "core/hle/service/psc/ovln/receiver.h"
+#include "core/hle/service/psc/ovln/receiver_service.h"
+
+namespace Service::PSC {
+
+IReceiverService::IReceiverService(Core::System& system_) : ServiceFramework{system_, "ovln:rcv"} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0, D<&IReceiverService::OpenReceiver>, "OpenReceiver"},
+    };
+    // clang-format on
+
+    RegisterHandlers(functions);
+}
+
+IReceiverService::~IReceiverService() = default;
+
+Result IReceiverService::OpenReceiver(Out<SharedPointer<IReceiver>> out_receiver) {
+    LOG_DEBUG(Service_PSC, "called");
+    *out_receiver = std::make_shared<IReceiver>(system);
+    R_SUCCEED();
+}
+
+} // namespace Service::PSC
diff --git a/src/core/hle/service/psc/ovln/receiver_service.h b/src/core/hle/service/psc/ovln/receiver_service.h
new file mode 100644
index 000000000..b3b31ba4a
--- /dev/null
+++ b/src/core/hle/service/psc/ovln/receiver_service.h
@@ -0,0 +1,22 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/hle/service/cmif_types.h"
+#include "core/hle/service/service.h"
+
+namespace Service::PSC {
+
+class IReceiver;
+
+class IReceiverService final : public ServiceFramework<IReceiverService> {
+public:
+    explicit IReceiverService(Core::System& system_);
+    ~IReceiverService() override;
+
+private:
+    Result OpenReceiver(Out<SharedPointer<IReceiver>> out_receiver);
+};
+
+} // namespace Service::PSC
diff --git a/src/core/hle/service/psc/ovln/sender.cpp b/src/core/hle/service/psc/ovln/sender.cpp
new file mode 100644
index 000000000..3227a56f2
--- /dev/null
+++ b/src/core/hle/service/psc/ovln/sender.cpp
@@ -0,0 +1,32 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/cmif_serialization.h"
+#include "core/hle/service/psc/ovln/sender.h"
+
+namespace Service::PSC {
+
+ISender::ISender(Core::System& system_) : ServiceFramework{system_, "ISender"} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0, D<&ISender::Send>, "Send"},
+        {1, nullptr, "GetUnreceivedMessageCount"},
+    };
+    // clang-format on
+
+    RegisterHandlers(functions);
+}
+
+ISender::~ISender() = default;
+
+Result ISender::Send(const OverlayNotification& notification, MessageFlags flags) {
+    std::string data;
+    for (const auto m : notification) {
+        data += fmt::format("{:016X} ", m);
+    }
+
+    LOG_WARNING(Service_PSC, "(STUBBED) called, flags={} notification={}", flags.raw, data);
+    R_SUCCEED();
+}
+
+} // namespace Service::PSC
diff --git a/src/core/hle/service/psc/ovln/sender.h b/src/core/hle/service/psc/ovln/sender.h
new file mode 100644
index 000000000..c1575428e
--- /dev/null
+++ b/src/core/hle/service/psc/ovln/sender.h
@@ -0,0 +1,21 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/hle/service/cmif_types.h"
+#include "core/hle/service/psc/ovln/ovln_types.h"
+#include "core/hle/service/service.h"
+
+namespace Service::PSC {
+
+class ISender final : public ServiceFramework<ISender> {
+public:
+    explicit ISender(Core::System& system_);
+    ~ISender() override;
+
+private:
+    Result Send(const OverlayNotification& notification, MessageFlags flags);
+};
+
+} // namespace Service::PSC
diff --git a/src/core/hle/service/psc/ovln/sender_service.cpp b/src/core/hle/service/psc/ovln/sender_service.cpp
new file mode 100644
index 000000000..18d2c83a3
--- /dev/null
+++ b/src/core/hle/service/psc/ovln/sender_service.cpp
@@ -0,0 +1,30 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/cmif_serialization.h"
+#include "core/hle/service/psc/ovln/sender.h"
+#include "core/hle/service/psc/ovln/sender_service.h"
+
+namespace Service::PSC {
+
+ISenderService::ISenderService(Core::System& system_) : ServiceFramework{system_, "ovln:snd"} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0, D<&ISenderService::OpenSender>, "OpenSender"},
+    };
+    // clang-format on
+
+    RegisterHandlers(functions);
+}
+
+ISenderService::~ISenderService() = default;
+
+Result ISenderService::OpenSender(Out<SharedPointer<ISender>> out_sender, u32 sender_id,
+                                  std::array<u64, 2> data) {
+    LOG_WARNING(Service_PSC, "(STUBBED) called, sender_id={}, data={:016X} {:016X}", sender_id,
+                data[0], data[1]);
+    *out_sender = std::make_shared<ISender>(system);
+    R_SUCCEED();
+}
+
+} // namespace Service::PSC
diff --git a/src/core/hle/service/psc/ovln/sender_service.h b/src/core/hle/service/psc/ovln/sender_service.h
new file mode 100644
index 000000000..10027701f
--- /dev/null
+++ b/src/core/hle/service/psc/ovln/sender_service.h
@@ -0,0 +1,23 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/hle/service/cmif_types.h"
+#include "core/hle/service/service.h"
+
+namespace Service::PSC {
+
+class ISender;
+
+class ISenderService final : public ServiceFramework<ISenderService> {
+public:
+    explicit ISenderService(Core::System& system_);
+    ~ISenderService() override;
+
+private:
+    Result OpenSender(Out<SharedPointer<ISender>> out_sender, u32 sender_id,
+                      std::array<u64, 2> data);
+};
+
+} // namespace Service::PSC
diff --git a/src/core/hle/service/psc/pm_control.cpp b/src/core/hle/service/psc/pm_control.cpp
new file mode 100644
index 000000000..7dedb7662
--- /dev/null
+++ b/src/core/hle/service/psc/pm_control.cpp
@@ -0,0 +1,28 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/psc/pm_control.h"
+
+namespace Service::PSC {
+
+IPmControl::IPmControl(Core::System& system_) : ServiceFramework{system_, "psc:c"} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0, nullptr, "Initialize"},
+        {1, nullptr, "DispatchRequest"},
+        {2, nullptr, "GetResult"},
+        {3, nullptr, "GetState"},
+        {4, nullptr, "Cancel"},
+        {5, nullptr, "PrintModuleInformation"},
+        {6, nullptr, "GetModuleInformation"},
+        {10, nullptr, "AcquireStateLock"},
+        {11, nullptr, "HasStateLock"},
+    };
+    // clang-format on
+
+    RegisterHandlers(functions);
+}
+
+IPmControl::~IPmControl() = default;
+
+} // namespace Service::PSC
diff --git a/src/core/hle/service/psc/pm_control.h b/src/core/hle/service/psc/pm_control.h
new file mode 100644
index 000000000..e0ae2f39c
--- /dev/null
+++ b/src/core/hle/service/psc/pm_control.h
@@ -0,0 +1,16 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/hle/service/service.h"
+
+namespace Service::PSC {
+
+class IPmControl final : public ServiceFramework<IPmControl> {
+public:
+    explicit IPmControl(Core::System& system_);
+    ~IPmControl() override;
+};
+
+} // namespace Service::PSC
diff --git a/src/core/hle/service/psc/pm_module.cpp b/src/core/hle/service/psc/pm_module.cpp
new file mode 100644
index 000000000..74dc7ed4e
--- /dev/null
+++ b/src/core/hle/service/psc/pm_module.cpp
@@ -0,0 +1,24 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/psc/pm_module.h"
+
+namespace Service::PSC {
+
+IPmModule::IPmModule(Core::System& system_) : ServiceFramework{system_, "IPmModule"} {
+    // clang-format off
+        static const FunctionInfo functions[] = {
+            {0, nullptr, "Initialize"},
+            {1, nullptr, "GetRequest"},
+            {2, nullptr, "Acknowledge"},
+            {3, nullptr, "Finalize"},
+            {4, nullptr, "AcknowledgeEx"},
+        };
+    // clang-format on
+
+    RegisterHandlers(functions);
+}
+
+IPmModule::~IPmModule() = default;
+
+} // namespace Service::PSC
diff --git a/src/core/hle/service/psc/pm_module.h b/src/core/hle/service/psc/pm_module.h
new file mode 100644
index 000000000..b3a2d2584
--- /dev/null
+++ b/src/core/hle/service/psc/pm_module.h
@@ -0,0 +1,16 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/hle/service/service.h"
+
+namespace Service::PSC {
+
+class IPmModule final : public ServiceFramework<IPmModule> {
+public:
+    explicit IPmModule(Core::System& system_);
+    ~IPmModule() override;
+};
+
+} // namespace Service::PSC
diff --git a/src/core/hle/service/psc/pm_service.cpp b/src/core/hle/service/psc/pm_service.cpp
new file mode 100644
index 000000000..c4e0ad228
--- /dev/null
+++ b/src/core/hle/service/psc/pm_service.cpp
@@ -0,0 +1,28 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/cmif_serialization.h"
+#include "core/hle/service/psc/pm_module.h"
+#include "core/hle/service/psc/pm_service.h"
+
+namespace Service::PSC {
+
+IPmService::IPmService(Core::System& system_) : ServiceFramework{system_, "psc:m"} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0, D<&IPmService::GetPmModule>, "GetPmModule"},
+    };
+    // clang-format on
+
+    RegisterHandlers(functions);
+}
+
+IPmService::~IPmService() = default;
+
+Result IPmService::GetPmModule(Out<SharedPointer<IPmModule>> out_module) {
+    LOG_DEBUG(Service_PSC, "called");
+    *out_module = std::make_shared<IPmModule>(system);
+    R_SUCCEED();
+}
+
+} // namespace Service::PSC
diff --git a/src/core/hle/service/psc/pm_service.h b/src/core/hle/service/psc/pm_service.h
new file mode 100644
index 000000000..08e14c6f8
--- /dev/null
+++ b/src/core/hle/service/psc/pm_service.h
@@ -0,0 +1,22 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/hle/service/cmif_types.h"
+#include "core/hle/service/service.h"
+
+namespace Service::PSC {
+
+class IPmModule;
+
+class IPmService final : public ServiceFramework<IPmService> {
+public:
+    explicit IPmService(Core::System& system_);
+    ~IPmService() override;
+
+private:
+    Result GetPmModule(Out<SharedPointer<IPmModule>> out_module);
+};
+
+} // namespace Service::PSC
diff --git a/src/core/hle/service/psc/psc.cpp b/src/core/hle/service/psc/psc.cpp
index 44310756b..e1762d694 100644
--- a/src/core/hle/service/psc/psc.cpp
+++ b/src/core/hle/service/psc/psc.cpp
@@ -1,11 +1,10 @@
 // SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
-#include <memory>
-
-#include "common/logging/log.h"
-#include "core/core.h"
-#include "core/hle/service/ipc_helpers.h"
+#include "core/hle/service/psc/ovln/receiver_service.h"
+#include "core/hle/service/psc/ovln/sender_service.h"
+#include "core/hle/service/psc/pm_control.h"
+#include "core/hle/service/psc/pm_service.h"
 #include "core/hle/service/psc/psc.h"
 #include "core/hle/service/psc/time/manager.h"
 #include "core/hle/service/psc/time/power_state_service.h"
@@ -15,71 +14,13 @@
 
 namespace Service::PSC {
 
-class IPmControl final : public ServiceFramework<IPmControl> {
-public:
-    explicit IPmControl(Core::System& system_) : ServiceFramework{system_, "psc:c"} {
-        // clang-format off
-        static const FunctionInfo functions[] = {
-            {0, nullptr, "Initialize"},
-            {1, nullptr, "DispatchRequest"},
-            {2, nullptr, "GetResult"},
-            {3, nullptr, "GetState"},
-            {4, nullptr, "Cancel"},
-            {5, nullptr, "PrintModuleInformation"},
-            {6, nullptr, "GetModuleInformation"},
-            {10, nullptr, "AcquireStateLock"},
-            {11, nullptr, "HasStateLock"},
-        };
-        // clang-format on
-
-        RegisterHandlers(functions);
-    }
-};
-
-class IPmModule final : public ServiceFramework<IPmModule> {
-public:
-    explicit IPmModule(Core::System& system_) : ServiceFramework{system_, "IPmModule"} {
-        // clang-format off
-        static const FunctionInfo functions[] = {
-            {0, nullptr, "Initialize"},
-            {1, nullptr, "GetRequest"},
-            {2, nullptr, "Acknowledge"},
-            {3, nullptr, "Finalize"},
-            {4, nullptr, "AcknowledgeEx"},
-        };
-        // clang-format on
-
-        RegisterHandlers(functions);
-    }
-};
-
-class IPmService final : public ServiceFramework<IPmService> {
-public:
-    explicit IPmService(Core::System& system_) : ServiceFramework{system_, "psc:m"} {
-        // clang-format off
-        static const FunctionInfo functions[] = {
-            {0, &IPmService::GetPmModule, "GetPmModule"},
-        };
-        // clang-format on
-
-        RegisterHandlers(functions);
-    }
-
-private:
-    void GetPmModule(HLERequestContext& ctx) {
-        LOG_DEBUG(Service_PSC, "called");
-
-        IPC::ResponseBuilder rb{ctx, 2, 0, 1};
-        rb.Push(ResultSuccess);
-        rb.PushIpcInterface<IPmModule>(system);
-    }
-};
-
 void LoopProcess(Core::System& system) {
     auto server_manager = std::make_unique<ServerManager>(system);
 
     server_manager->RegisterNamedService("psc:c", std::make_shared<IPmControl>(system));
     server_manager->RegisterNamedService("psc:m", std::make_shared<IPmService>(system));
+    server_manager->RegisterNamedService("ovln:rcv", std::make_shared<IReceiverService>(system));
+    server_manager->RegisterNamedService("ovln:snd", std::make_shared<ISenderService>(system));
 
     auto time = std::make_shared<Time::TimeManager>(system);
 
diff --git a/src/core/hle/service/psc/psc.h b/src/core/hle/service/psc/psc.h
index 459137f42..c83d07ca8 100644
--- a/src/core/hle/service/psc/psc.h
+++ b/src/core/hle/service/psc/psc.h
@@ -7,10 +7,6 @@ namespace Core {
 class System;
 }
 
-namespace Service::SM {
-class ServiceManager;
-}
-
 namespace Service::PSC {
 
 void LoopProcess(Core::System& system);
diff --git a/src/core/hle/service/vi/container.cpp b/src/core/hle/service/vi/container.cpp
index 310a207f1..9074f4ae0 100644
--- a/src/core/hle/service/vi/container.cpp
+++ b/src/core/hle/service/vi/container.cpp
@@ -43,11 +43,7 @@ void Container::OnTerminate() {
 
     m_is_shut_down = true;
 
-    m_layers.ForEachLayer([&](auto& layer) {
-        if (layer.IsOpen()) {
-            this->DestroyBufferQueueLocked(&layer);
-        }
-    });
+    m_layers.ForEachLayer([&](auto& layer) { this->DestroyLayerLocked(layer.GetId()); });
 
     m_displays.ForEachDisplay(
         [&](auto& display) { m_surface_flinger->RemoveDisplay(display.GetId()); });
@@ -161,16 +157,29 @@ Result Container::CreateLayerLocked(u64* out_layer_id, u64 display_id, u64 owner
     auto* const display = m_displays.GetDisplayById(display_id);
     R_UNLESS(display != nullptr, VI::ResultNotFound);
 
-    auto* const layer = m_layers.CreateLayer(owner_aruid, display);
+    s32 consumer_binder_id, producer_binder_id;
+    m_surface_flinger->CreateBufferQueue(&consumer_binder_id, &producer_binder_id);
+
+    auto* const layer =
+        m_layers.CreateLayer(owner_aruid, display, consumer_binder_id, producer_binder_id);
     R_UNLESS(layer != nullptr, VI::ResultNotFound);
 
+    m_surface_flinger->CreateLayer(consumer_binder_id);
+
     *out_layer_id = layer->GetId();
     R_SUCCEED();
 }
 
 Result Container::DestroyLayerLocked(u64 layer_id) {
-    R_SUCCEED_IF(m_layers.DestroyLayer(layer_id));
-    R_THROW(VI::ResultNotFound);
+    auto* const layer = m_layers.GetLayerById(layer_id);
+    R_UNLESS(layer != nullptr, VI::ResultNotFound);
+
+    m_surface_flinger->DestroyLayer(layer->GetConsumerBinderId());
+    m_surface_flinger->DestroyBufferQueue(layer->GetConsumerBinderId(),
+                                          layer->GetProducerBinderId());
+    m_layers.DestroyLayer(layer_id);
+
+    R_SUCCEED();
 }
 
 Result Container::OpenLayerLocked(s32* out_producer_binder_id, u64 layer_id, u64 aruid) {
@@ -181,7 +190,12 @@ Result Container::OpenLayerLocked(s32* out_producer_binder_id, u64 layer_id, u64
     R_UNLESS(!layer->IsOpen(), VI::ResultOperationFailed);
     R_UNLESS(layer->GetOwnerAruid() == aruid, VI::ResultPermissionDenied);
 
-    this->CreateBufferQueueLocked(layer);
+    layer->Open();
+
+    if (auto* display = layer->GetDisplay(); display != nullptr) {
+        m_surface_flinger->AddLayerToDisplayStack(display->GetId(), layer->GetConsumerBinderId());
+    }
+
     *out_producer_binder_id = layer->GetProducerBinderId();
 
     R_SUCCEED();
@@ -192,30 +206,14 @@ Result Container::CloseLayerLocked(u64 layer_id) {
     R_UNLESS(layer != nullptr, VI::ResultNotFound);
     R_UNLESS(layer->IsOpen(), VI::ResultOperationFailed);
 
-    this->DestroyBufferQueueLocked(layer);
-
-    R_SUCCEED();
-}
-
-void Container::CreateBufferQueueLocked(Layer* layer) {
-    s32 consumer_binder_id, producer_binder_id;
-    m_surface_flinger->CreateBufferQueue(&consumer_binder_id, &producer_binder_id);
-    layer->Open(consumer_binder_id, producer_binder_id);
-
-    if (auto* display = layer->GetDisplay(); display != nullptr) {
-        m_surface_flinger->AddLayerToDisplayStack(display->GetId(), consumer_binder_id);
-    }
-}
-
-void Container::DestroyBufferQueueLocked(Layer* layer) {
     if (auto* display = layer->GetDisplay(); display != nullptr) {
         m_surface_flinger->RemoveLayerFromDisplayStack(display->GetId(),
                                                        layer->GetConsumerBinderId());
     }
 
     layer->Close();
-    m_surface_flinger->DestroyBufferQueue(layer->GetConsumerBinderId(),
-                                          layer->GetProducerBinderId());
+
+    R_SUCCEED();
 }
 
 bool Container::ComposeOnDisplay(s32* out_swap_interval, f32* out_compose_speed_scale,
diff --git a/src/core/hle/service/vi/container.h b/src/core/hle/service/vi/container.h
index cd0d2ca86..5eac4d77d 100644
--- a/src/core/hle/service/vi/container.h
+++ b/src/core/hle/service/vi/container.h
@@ -72,9 +72,6 @@ private:
     Result OpenLayerLocked(s32* out_producer_binder_id, u64 layer_id, u64 aruid);
     Result CloseLayerLocked(u64 layer_id);
 
-    void CreateBufferQueueLocked(Layer* layer);
-    void DestroyBufferQueueLocked(Layer* layer);
-
 public:
     bool ComposeOnDisplay(s32* out_swap_interval, f32* out_compose_speed_scale, u64 display_id);
 
diff --git a/src/core/hle/service/vi/layer.h b/src/core/hle/service/vi/layer.h
index b85c8df61..e4c9c9864 100644
--- a/src/core/hle/service/vi/layer.h
+++ b/src/core/hle/service/vi/layer.h
@@ -13,29 +13,31 @@ class Layer {
 public:
     constexpr Layer() = default;
 
-    void Initialize(u64 id, u64 owner_aruid, Display* display) {
+    void Initialize(u64 id, u64 owner_aruid, Display* display, s32 consumer_binder_id,
+                    s32 producer_binder_id) {
         m_id = id;
         m_owner_aruid = owner_aruid;
         m_display = display;
+        m_consumer_binder_id = consumer_binder_id;
+        m_producer_binder_id = producer_binder_id;
         m_is_initialized = true;
     }
 
     void Finalize() {
         m_id = {};
+        m_owner_aruid = {};
         m_display = {};
+        m_consumer_binder_id = {};
+        m_producer_binder_id = {};
         m_is_initialized = {};
     }
 
-    void Open(s32 consumer_binder_id, s32 producer_binder_id) {
-        m_consumer_binder_id = consumer_binder_id;
-        m_producer_binder_id = producer_binder_id;
+    void Open() {
         m_is_open = true;
     }
 
     void Close() {
-        m_producer_binder_id = {};
-        m_consumer_binder_id = {};
-        m_is_open = {};
+        m_is_open = false;
     }
 
     u64 GetId() const {
diff --git a/src/core/hle/service/vi/layer_list.h b/src/core/hle/service/vi/layer_list.h
index 1738ede9a..4afca6f40 100644
--- a/src/core/hle/service/vi/layer_list.h
+++ b/src/core/hle/service/vi/layer_list.h
@@ -11,13 +11,15 @@ class LayerList {
 public:
     constexpr LayerList() = default;
 
-    Layer* CreateLayer(u64 owner_aruid, Display* display) {
+    Layer* CreateLayer(u64 owner_aruid, Display* display, s32 consumer_binder_id,
+                       s32 producer_binder_id) {
         Layer* const layer = GetFreeLayer();
         if (!layer) {
             return nullptr;
         }
 
-        layer->Initialize(++m_next_id, owner_aruid, display);
+        layer->Initialize(++m_next_id, owner_aruid, display, consumer_binder_id,
+                          producer_binder_id);
         return layer;
     }
 
diff --git a/src/core/hle/service/vi/shared_buffer_manager.cpp b/src/core/hle/service/vi/shared_buffer_manager.cpp
index 869b18961..12cba16fa 100644
--- a/src/core/hle/service/vi/shared_buffer_manager.cpp
+++ b/src/core/hle/service/vi/shared_buffer_manager.cpp
@@ -285,7 +285,7 @@ void SharedBufferManager::DestroySession(Kernel::KProcess* owner_process) {
     auto& session = it->second;
 
     // Destroy the layer.
-    R_ASSERT(m_container.DestroyStrayLayer(session.layer_id));
+    m_container.DestroyStrayLayer(session.layer_id);
 
     // Close nvmap handle.
     FreeHandle(session.buffer_nvmap_handle, *m_nvdrv, session.nvmap_fd);
@@ -322,8 +322,6 @@ Result SharedBufferManager::GetSharedBufferMemoryHandleId(u64* out_buffer_size,
 Result SharedBufferManager::AcquireSharedFrameBuffer(android::Fence* out_fence,
                                                      std::array<s32, 4>& out_slot_indexes,
                                                      s64* out_target_slot, u64 layer_id) {
-    std::scoped_lock lk{m_guard};
-
     // Get the producer.
     std::shared_ptr<android::BufferQueueProducer> producer;
     R_TRY(m_container.GetLayerProducerHandle(std::addressof(producer), layer_id));
@@ -347,8 +345,6 @@ Result SharedBufferManager::PresentSharedFrameBuffer(android::Fence fence,
                                                      Common::Rectangle<s32> crop_region,
                                                      u32 transform, s32 swap_interval, u64 layer_id,
                                                      s64 slot) {
-    std::scoped_lock lk{m_guard};
-
     // Get the producer.
     std::shared_ptr<android::BufferQueueProducer> producer;
     R_TRY(m_container.GetLayerProducerHandle(std::addressof(producer), layer_id));
@@ -379,8 +375,6 @@ Result SharedBufferManager::PresentSharedFrameBuffer(android::Fence fence,
 }
 
 Result SharedBufferManager::CancelSharedFrameBuffer(u64 layer_id, s64 slot) {
-    std::scoped_lock lk{m_guard};
-
     // Get the producer.
     std::shared_ptr<android::BufferQueueProducer> producer;
     R_TRY(m_container.GetLayerProducerHandle(std::addressof(producer), layer_id));
@@ -394,8 +388,6 @@ Result SharedBufferManager::CancelSharedFrameBuffer(u64 layer_id, s64 slot) {
 
 Result SharedBufferManager::GetSharedFrameBufferAcquirableEvent(Kernel::KReadableEvent** out_event,
                                                                 u64 layer_id) {
-    std::scoped_lock lk{m_guard};
-
     // Get the producer.
     std::shared_ptr<android::BufferQueueProducer> producer;
     R_TRY(m_container.GetLayerProducerHandle(std::addressof(producer), layer_id));
diff --git a/src/shader_recompiler/backend/spirv/emit_spirv.cpp b/src/shader_recompiler/backend/spirv/emit_spirv.cpp
index 0031fa5fb..3f9698d6b 100644
--- a/src/shader_recompiler/backend/spirv/emit_spirv.cpp
+++ b/src/shader_recompiler/backend/spirv/emit_spirv.cpp
@@ -261,7 +261,9 @@ void DefineEntryPoint(const IR::Program& program, EmitContext& ctx, Id main) {
     case Stage::Geometry:
         execution_model = spv::ExecutionModel::Geometry;
         ctx.AddCapability(spv::Capability::Geometry);
-        ctx.AddCapability(spv::Capability::GeometryStreams);
+        if (ctx.profile.support_geometry_streams) {
+            ctx.AddCapability(spv::Capability::GeometryStreams);
+        }
         switch (ctx.runtime_info.input_topology) {
         case InputTopology::Points:
             ctx.AddExecutionMode(main, spv::ExecutionMode::InputPoints);
diff --git a/src/shader_recompiler/backend/spirv/emit_spirv_special.cpp b/src/shader_recompiler/backend/spirv/emit_spirv_special.cpp
index 9f7b6bb4b..f60da758e 100644
--- a/src/shader_recompiler/backend/spirv/emit_spirv_special.cpp
+++ b/src/shader_recompiler/backend/spirv/emit_spirv_special.cpp
@@ -129,7 +129,9 @@ void EmitEmitVertex(EmitContext& ctx, const IR::Value& stream) {
     if (ctx.runtime_info.convert_depth_mode && !ctx.profile.support_native_ndc) {
         ConvertDepthMode(ctx);
     }
-    if (stream.IsImmediate()) {
+    if (!ctx.profile.support_geometry_streams) {
+        throw NotImplementedException("Geometry streams");
+    } else if (stream.IsImmediate()) {
         ctx.OpEmitStreamVertex(ctx.Def(stream));
     } else {
         LOG_WARNING(Shader_SPIRV, "Stream is not immediate");
@@ -140,7 +142,9 @@ void EmitEmitVertex(EmitContext& ctx, const IR::Value& stream) {
 }
 
 void EmitEndPrimitive(EmitContext& ctx, const IR::Value& stream) {
-    if (stream.IsImmediate()) {
+    if (!ctx.profile.support_geometry_streams) {
+        throw NotImplementedException("Geometry streams");
+    } else if (stream.IsImmediate()) {
         ctx.OpEndStreamPrimitive(ctx.Def(stream));
     } else {
         LOG_WARNING(Shader_SPIRV, "Stream is not immediate");
diff --git a/src/shader_recompiler/profile.h b/src/shader_recompiler/profile.h
index 7578d41cc..90e46bb1b 100644
--- a/src/shader_recompiler/profile.h
+++ b/src/shader_recompiler/profile.h
@@ -44,6 +44,7 @@ struct Profile {
     bool support_gl_derivative_control{};
     bool support_scaled_attributes{};
     bool support_multi_viewport{};
+    bool support_geometry_streams{};
 
     bool warp_size_potentially_larger_than_guest{};
 
diff --git a/src/video_core/buffer_cache/buffer_cache.h b/src/video_core/buffer_cache/buffer_cache.h
index 296c90e85..ed7a5b27e 100644
--- a/src/video_core/buffer_cache/buffer_cache.h
+++ b/src/video_core/buffer_cache/buffer_cache.h
@@ -35,7 +35,7 @@ BufferCache<P>::BufferCache(Tegra::MaxwellDeviceMemoryManager& device_memory_, R
     const s64 min_spacing_critical = device_local_memory - 512_MiB;
     const s64 mem_threshold = std::min(device_local_memory, TARGET_THRESHOLD);
     const s64 min_vacancy_expected = (6 * mem_threshold) / 10;
-    const s64 min_vacancy_critical = (3 * mem_threshold) / 10;
+    const s64 min_vacancy_critical = (2 * mem_threshold) / 10;
     minimum_memory = static_cast<u64>(
         std::max(std::min(device_local_memory - min_vacancy_expected, min_spacing_expected),
                  DEFAULT_EXPECTED_MEMORY));
diff --git a/src/video_core/renderer_vulkan/vk_pipeline_cache.cpp b/src/video_core/renderer_vulkan/vk_pipeline_cache.cpp
index 20f7a9702..d34b585d6 100644
--- a/src/video_core/renderer_vulkan/vk_pipeline_cache.cpp
+++ b/src/video_core/renderer_vulkan/vk_pipeline_cache.cpp
@@ -352,6 +352,7 @@ PipelineCache::PipelineCache(Tegra::MaxwellDeviceMemoryManager& device_memory_,
         .support_native_ndc = device.IsExtDepthClipControlSupported(),
         .support_scaled_attributes = !device.MustEmulateScaledFormats(),
         .support_multi_viewport = device.SupportsMultiViewport(),
+        .support_geometry_streams = device.AreTransformFeedbackGeometryStreamsSupported(),
 
         .warp_size_potentially_larger_than_guest = device.IsWarpSizePotentiallyBiggerThanGuest(),
 
diff --git a/src/video_core/surface.cpp b/src/video_core/surface.cpp
index 5b3c7aa5a..9055b1b92 100644
--- a/src/video_core/surface.cpp
+++ b/src/video_core/surface.cpp
@@ -3,6 +3,7 @@
 
 #include "common/common_types.h"
 #include "common/math_util.h"
+#include "common/settings.h"
 #include "video_core/surface.h"
 
 namespace VideoCore::Surface {
@@ -400,11 +401,20 @@ std::pair<u32, u32> GetASTCBlockSize(PixelFormat format) {
     return {DefaultBlockWidth(format), DefaultBlockHeight(format)};
 }
 
-u64 EstimatedDecompressedSize(u64 base_size, PixelFormat format) {
+u64 TranscodedAstcSize(u64 base_size, PixelFormat format) {
     constexpr u64 RGBA8_PIXEL_SIZE = 4;
     const u64 base_block_size = static_cast<u64>(DefaultBlockWidth(format)) *
                                 static_cast<u64>(DefaultBlockHeight(format)) * RGBA8_PIXEL_SIZE;
-    return (base_size * base_block_size) / BytesPerBlock(format);
+    const u64 uncompressed_size = (base_size * base_block_size) / BytesPerBlock(format);
+
+    switch (Settings::values.astc_recompression.GetValue()) {
+    case Settings::AstcRecompression::Bc1:
+        return uncompressed_size / 8;
+    case Settings::AstcRecompression::Bc3:
+        return uncompressed_size / 4;
+    default:
+        return uncompressed_size;
+    }
 }
 
 } // namespace VideoCore::Surface
diff --git a/src/video_core/surface.h b/src/video_core/surface.h
index a5e8e2f62..ec9cd2fbf 100644
--- a/src/video_core/surface.h
+++ b/src/video_core/surface.h
@@ -517,6 +517,6 @@ size_t PixelComponentSizeBitsInteger(PixelFormat format);
 
 std::pair<u32, u32> GetASTCBlockSize(PixelFormat format);
 
-u64 EstimatedDecompressedSize(u64 base_size, PixelFormat format);
+u64 TranscodedAstcSize(u64 base_size, PixelFormat format);
 
 } // namespace VideoCore::Surface
diff --git a/src/video_core/texture_cache/texture_cache.h b/src/video_core/texture_cache/texture_cache.h
index 01c3561c9..53b4876f2 100644
--- a/src/video_core/texture_cache/texture_cache.h
+++ b/src/video_core/texture_cache/texture_cache.h
@@ -55,7 +55,7 @@ TextureCache<P>::TextureCache(Runtime& runtime_, Tegra::MaxwellDeviceMemoryManag
         const s64 min_spacing_critical = device_local_memory - 512_MiB;
         const s64 mem_threshold = std::min(device_local_memory, TARGET_THRESHOLD);
         const s64 min_vacancy_expected = (6 * mem_threshold) / 10;
-        const s64 min_vacancy_critical = (3 * mem_threshold) / 10;
+        const s64 min_vacancy_critical = (2 * mem_threshold) / 10;
         expected_memory = static_cast<u64>(
             std::max(std::min(device_local_memory - min_vacancy_expected, min_spacing_expected),
                      DEFAULT_EXPECTED_MEMORY));
@@ -1979,7 +1979,7 @@ void TextureCache<P>::RegisterImage(ImageId image_id) {
     if ((IsPixelFormatASTC(image.info.format) &&
          True(image.flags & ImageFlagBits::AcceleratedUpload)) ||
         True(image.flags & ImageFlagBits::Converted)) {
-        tentative_size = EstimatedDecompressedSize(tentative_size, image.info.format);
+        tentative_size = TranscodedAstcSize(tentative_size, image.info.format);
     }
     total_used_memory += Common::AlignUp(tentative_size, 1024);
     image.lru_index = lru_cache.Insert(image_id, frame_tick);
@@ -2149,7 +2149,7 @@ void TextureCache<P>::DeleteImage(ImageId image_id, bool immediate_delete) {
     if ((IsPixelFormatASTC(image.info.format) &&
          True(image.flags & ImageFlagBits::AcceleratedUpload)) ||
         True(image.flags & ImageFlagBits::Converted)) {
-        tentative_size = EstimatedDecompressedSize(tentative_size, image.info.format);
+        tentative_size = TranscodedAstcSize(tentative_size, image.info.format);
     }
     total_used_memory -= Common::AlignUp(tentative_size, 1024);
     const GPUVAddr gpu_addr = image.gpu_addr;
diff --git a/src/video_core/vulkan_common/vulkan_device.cpp b/src/video_core/vulkan_common/vulkan_device.cpp
index d7216d349..b94924a58 100644
--- a/src/video_core/vulkan_common/vulkan_device.cpp
+++ b/src/video_core/vulkan_common/vulkan_device.cpp
@@ -1297,10 +1297,6 @@ u64 Device::GetDeviceMemoryUsage() const {
 }
 
 void Device::CollectPhysicalMemoryInfo() {
-    // Account for resolution scaling in memory limits
-    const size_t normal_memory = 6_GiB;
-    const size_t scaler_memory = 1_GiB * Settings::values.resolution_info.ScaleUp(1);
-
     // Calculate limits using memory budget
     VkPhysicalDeviceMemoryBudgetPropertiesEXT budget{};
     budget.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MEMORY_BUDGET_PROPERTIES_EXT;
@@ -1331,7 +1327,15 @@ void Device::CollectPhysicalMemoryInfo() {
     if (!is_integrated) {
         const u64 reserve_memory = std::min<u64>(device_access_memory / 8, 1_GiB);
         device_access_memory -= reserve_memory;
-        device_access_memory = std::min<u64>(device_access_memory, normal_memory + scaler_memory);
+
+        if (Settings::values.vram_usage_mode.GetValue() != Settings::VramUsageMode::Aggressive) {
+            // Account for resolution scaling in memory limits
+            const size_t normal_memory = 6_GiB;
+            const size_t scaler_memory = 1_GiB * Settings::values.resolution_info.ScaleUp(1);
+            device_access_memory =
+                std::min<u64>(device_access_memory, normal_memory + scaler_memory);
+        }
+
         return;
     }
     const s64 available_memory = static_cast<s64>(device_access_memory - device_initial_usage);
diff --git a/src/video_core/vulkan_common/vulkan_device.h b/src/video_core/vulkan_common/vulkan_device.h
index a2ec26697..e3abe8ddf 100644
--- a/src/video_core/vulkan_common/vulkan_device.h
+++ b/src/video_core/vulkan_common/vulkan_device.h
@@ -499,6 +499,11 @@ public:
         return extensions.transform_feedback;
     }
 
+    /// Returns true if the device supports VK_EXT_transform_feedback properly.
+    bool AreTransformFeedbackGeometryStreamsSupported() const {
+        return features.transform_feedback.geometryStreams;
+    }
+
     /// Returns true if the device supports VK_EXT_custom_border_color.
     bool IsExtCustomBorderColorSupported() const {
         return extensions.custom_border_color;
diff --git a/src/yuzu/configuration/shared_translation.cpp b/src/yuzu/configuration/shared_translation.cpp
index d138b53c8..0549e8ae4 100644
--- a/src/yuzu/configuration/shared_translation.cpp
+++ b/src/yuzu/configuration/shared_translation.cpp
@@ -164,6 +164,11 @@ std::unique_ptr<TranslationMap> InitializeTranslations(QWidget* parent) {
            "the emulator to decompress to an intermediate format any card supports, RGBA8.\n"
            "This option recompresses RGBA8 to either the BC1 or BC3 format, saving VRAM but "
            "negatively affecting image quality."));
+    INSERT(Settings, vram_usage_mode, tr("VRAM Usage Mode:"),
+           tr("Selects whether the emulator should prefer to conserve memory or make maximum usage "
+              "of available video memory for performance. Has no effect on integrated graphics. "
+              "Aggressive mode may severely impact the performance of other applications such as "
+              "recording software."));
     INSERT(
         Settings, vsync_mode, tr("VSync Mode:"),
         tr("FIFO (VSync) does not drop frames or exhibit tearing but is limited by the screen "
@@ -315,6 +320,11 @@ std::unique_ptr<ComboboxTranslationMap> ComboboxEnumeration(QWidget* parent) {
              PAIR(AstcRecompression, Bc1, tr("BC1 (Low quality)")),
              PAIR(AstcRecompression, Bc3, tr("BC3 (Medium quality)")),
          }});
+    translations->insert({Settings::EnumMetadata<Settings::VramUsageMode>::Index(),
+                          {
+                              PAIR(VramUsageMode, Conservative, tr("Conservative")),
+                              PAIR(VramUsageMode, Aggressive, tr("Aggressive")),
+                          }});
     translations->insert({Settings::EnumMetadata<Settings::RendererBackend>::Index(),
                           {
 #ifdef HAS_OPENGL
diff --git a/src/yuzu/main.cpp b/src/yuzu/main.cpp
index 9d63b5935..c0c0a19b8 100644
--- a/src/yuzu/main.cpp
+++ b/src/yuzu/main.cpp
@@ -1604,6 +1604,7 @@ void GMainWindow::ConnectMenuEvents() {
     connect_menu(ui->action_Open_yuzu_Folder, &GMainWindow::OnOpenYuzuFolder);
     connect_menu(ui->action_Verify_installed_contents, &GMainWindow::OnVerifyInstalledContents);
     connect_menu(ui->action_Install_Firmware, &GMainWindow::OnInstallFirmware);
+    connect_menu(ui->action_Install_Keys, &GMainWindow::OnInstallDecryptionKeys);
     connect_menu(ui->action_About, &GMainWindow::OnAbout);
 }
 
@@ -1633,6 +1634,7 @@ void GMainWindow::UpdateMenuState() {
     }
 
     ui->action_Install_Firmware->setEnabled(!emulation_running);
+    ui->action_Install_Keys->setEnabled(!emulation_running);
 
     for (QAction* action : applet_actions) {
         action->setEnabled(is_firmware_available && !emulation_running);
@@ -3008,9 +3010,6 @@ bool GMainWindow::MakeShortcutIcoPath(const u64 program_id, const std::string_vi
 
 void GMainWindow::OnGameListCreateShortcut(u64 program_id, const std::string& game_path,
                                            GameListShortcutTarget target) {
-    std::string game_title;
-    QString qt_game_title;
-    std::filesystem::path out_icon_path;
     // Get path to yuzu executable
     const QStringList args = QApplication::arguments();
     std::filesystem::path yuzu_command = args[0].toStdString();
@@ -3027,48 +3026,51 @@ void GMainWindow::OnGameListCreateShortcut(u64 program_id, const std::string& ga
         shortcut_path =
             QStandardPaths::writableLocation(QStandardPaths::ApplicationsLocation).toStdString();
     }
-    // Icon path and title
-    if (std::filesystem::exists(shortcut_path)) {
-        // Get title from game file
-        const FileSys::PatchManager pm{program_id, system->GetFileSystemController(),
-                                       system->GetContentProvider()};
-        const auto control = pm.GetControlMetadata();
-        const auto loader =
-            Loader::GetLoader(*system, vfs->OpenFile(game_path, FileSys::OpenMode::Read));
-        game_title = fmt::format("{:016X}", program_id);
-        if (control.first != nullptr) {
-            game_title = control.first->GetApplicationName();
-        } else {
-            loader->ReadTitle(game_title);
-        }
-        // Delete illegal characters from title
-        const std::string illegal_chars = "<>:\"/\\|?*.";
-        for (auto it = game_title.rbegin(); it != game_title.rend(); ++it) {
-            if (illegal_chars.find(*it) != std::string::npos) {
-                game_title.erase(it.base() - 1);
-            }
-        }
-        qt_game_title = QString::fromStdString(game_title);
-        // Get icon from game file
-        std::vector<u8> icon_image_file{};
-        if (control.second != nullptr) {
-            icon_image_file = control.second->ReadAllBytes();
-        } else if (loader->ReadIcon(icon_image_file) != Loader::ResultStatus::Success) {
-            LOG_WARNING(Frontend, "Could not read icon from {:s}", game_path);
+
+    if (!std::filesystem::exists(shortcut_path)) {
+        GMainWindow::CreateShortcutMessagesGUI(
+            this, GMainWindow::CREATE_SHORTCUT_MSGBOX_ERROR,
+            QString::fromStdString(shortcut_path.generic_string()));
+        LOG_ERROR(Frontend, "Invalid shortcut target {}", shortcut_path.generic_string());
+        return;
+    }
+
+    // Get title from game file
+    const FileSys::PatchManager pm{program_id, system->GetFileSystemController(),
+                                   system->GetContentProvider()};
+    const auto control = pm.GetControlMetadata();
+    const auto loader =
+        Loader::GetLoader(*system, vfs->OpenFile(game_path, FileSys::OpenMode::Read));
+    std::string game_title = fmt::format("{:016X}", program_id);
+    if (control.first != nullptr) {
+        game_title = control.first->GetApplicationName();
+    } else {
+        loader->ReadTitle(game_title);
+    }
+    // Delete illegal characters from title
+    const std::string illegal_chars = "<>:\"/\\|?*.";
+    for (auto it = game_title.rbegin(); it != game_title.rend(); ++it) {
+        if (illegal_chars.find(*it) != std::string::npos) {
+            game_title.erase(it.base() - 1);
         }
-        QImage icon_data =
-            QImage::fromData(icon_image_file.data(), static_cast<int>(icon_image_file.size()));
-        if (GMainWindow::MakeShortcutIcoPath(program_id, game_title, out_icon_path)) {
-            if (!SaveIconToFile(out_icon_path, icon_data)) {
-                LOG_ERROR(Frontend, "Could not write icon to file");
-            }
+    }
+    const QString qt_game_title = QString::fromStdString(game_title);
+    // Get icon from game file
+    std::vector<u8> icon_image_file{};
+    if (control.second != nullptr) {
+        icon_image_file = control.second->ReadAllBytes();
+    } else if (loader->ReadIcon(icon_image_file) != Loader::ResultStatus::Success) {
+        LOG_WARNING(Frontend, "Could not read icon from {:s}", game_path);
+    }
+    QImage icon_data =
+        QImage::fromData(icon_image_file.data(), static_cast<int>(icon_image_file.size()));
+    std::filesystem::path out_icon_path;
+    if (GMainWindow::MakeShortcutIcoPath(program_id, game_title, out_icon_path)) {
+        if (!SaveIconToFile(out_icon_path, icon_data)) {
+            LOG_ERROR(Frontend, "Could not write icon to file");
         }
-    } else {
-        GMainWindow::CreateShortcutMessagesGUI(this, GMainWindow::CREATE_SHORTCUT_MSGBOX_ERROR,
-                                               qt_game_title);
-        LOG_ERROR(Frontend, "Invalid shortcut target");
-        return;
     }
+
 #if defined(__linux__)
     // Special case for AppImages
     // Warn once if we are making a shortcut to a volatile AppImage
@@ -4169,9 +4171,8 @@ void GMainWindow::OnInstallFirmware() {
         return;
     }
 
-    QString firmware_source_location =
-        QFileDialog::getExistingDirectory(this, tr("Select Dumped Firmware Source Location"),
-                                          QString::fromStdString(""), QFileDialog::ShowDirsOnly);
+    const QString firmware_source_location = QFileDialog::getExistingDirectory(
+        this, tr("Select Dumped Firmware Source Location"), {}, QFileDialog::ShowDirsOnly);
     if (firmware_source_location.isEmpty()) {
         return;
     }
@@ -4202,8 +4203,9 @@ void GMainWindow::OnInstallFirmware() {
     std::vector<std::filesystem::path> out;
     const Common::FS::DirEntryCallable callback =
         [&out](const std::filesystem::directory_entry& entry) {
-            if (entry.path().has_extension() && entry.path().extension() == ".nca")
+            if (entry.path().has_extension() && entry.path().extension() == ".nca") {
                 out.emplace_back(entry.path());
+            }
 
             return true;
         };
@@ -4235,7 +4237,6 @@ void GMainWindow::OnInstallFirmware() {
     auto firmware_vdir = sysnand_content_vdir->GetDirectoryRelative("registered");
 
     bool success = true;
-    bool cancelled = false;
     int i = 0;
     for (const auto& firmware_src_path : out) {
         i++;
@@ -4250,24 +4251,22 @@ void GMainWindow::OnInstallFirmware() {
             success = false;
         }
 
-        if (QtProgressCallback(100, 20 + (int)(((float)(i) / (float)out.size()) * 70.0))) {
-            success = false;
-            cancelled = true;
-            break;
+        if (QtProgressCallback(
+                100, 20 + static_cast<int>(((i) / static_cast<float>(out.size())) * 70.0))) {
+            progress.close();
+            QMessageBox::warning(
+                this, tr("Firmware install failed"),
+                tr("Firmware installation cancelled, firmware may be in bad state, "
+                   "restart yuzu or re-install firmware."));
+            return;
         }
     }
 
-    if (!success && !cancelled) {
+    if (!success) {
         progress.close();
         QMessageBox::critical(this, tr("Firmware install failed"),
                               tr("One or more firmware files failed to copy into NAND."));
         return;
-    } else if (cancelled) {
-        progress.close();
-        QMessageBox::warning(this, tr("Firmware install failed"),
-                             tr("Firmware installation cancelled, firmware may be in bad state, "
-                                "restart yuzu or re-install firmware."));
-        return;
     }
 
     // Re-scan VFS for the newly placed firmware files.
@@ -4295,6 +4294,84 @@ void GMainWindow::OnInstallFirmware() {
     OnCheckFirmwareDecryption();
 }
 
+void GMainWindow::OnInstallDecryptionKeys() {
+    // Don't do this while emulation is running.
+    if (emu_thread != nullptr && emu_thread->IsRunning()) {
+        return;
+    }
+
+    const QString key_source_location = QFileDialog::getOpenFileName(
+        this, tr("Select Dumped Keys Location"), {}, QStringLiteral("prod.keys (prod.keys)"), {},
+        QFileDialog::ReadOnly);
+    if (key_source_location.isEmpty()) {
+        return;
+    }
+
+    // Verify that it contains prod.keys, title.keys and optionally, key_retail.bin
+    LOG_INFO(Frontend, "Installing key files from {}", key_source_location.toStdString());
+
+    const std::filesystem::path prod_key_path = key_source_location.toStdString();
+    const std::filesystem::path key_source_path = prod_key_path.parent_path();
+    if (!Common::FS::IsDir(key_source_path)) {
+        return;
+    }
+
+    bool prod_keys_found = false;
+    std::vector<std::filesystem::path> source_key_files;
+
+    if (Common::FS::Exists(prod_key_path)) {
+        prod_keys_found = true;
+        source_key_files.emplace_back(prod_key_path);
+    }
+
+    if (Common::FS::Exists(key_source_path / "title.keys")) {
+        source_key_files.emplace_back(key_source_path / "title.keys");
+    }
+
+    if (Common::FS::Exists(key_source_path / "key_retail.bin")) {
+        source_key_files.emplace_back(key_source_path / "key_retail.bin");
+    }
+
+    // There should be at least prod.keys.
+    if (source_key_files.empty() || !prod_keys_found) {
+        QMessageBox::warning(this, tr("Decryption Keys install failed"),
+                             tr("prod.keys is a required decryption key file."));
+        return;
+    }
+
+    const auto yuzu_keys_dir = Common::FS::GetYuzuPath(Common::FS::YuzuPath::KeysDir);
+    for (auto key_file : source_key_files) {
+        std::filesystem::path destination_key_file = yuzu_keys_dir / key_file.filename();
+        if (!std::filesystem::copy_file(key_file, destination_key_file,
+                                        std::filesystem::copy_options::overwrite_existing)) {
+            LOG_ERROR(Frontend, "Failed to copy file {} to {}", key_file.string(),
+                      destination_key_file.string());
+            QMessageBox::critical(this, tr("Decryption Keys install failed"),
+                                  tr("One or more keys failed to copy."));
+            return;
+        }
+    }
+
+    // Reinitialize the key manager, re-read the vfs (for update/dlc files),
+    // and re-populate the game list in the UI if the user has already added
+    // game folders.
+    Core::Crypto::KeyManager::Instance().ReloadKeys();
+    system->GetFileSystemController().CreateFactories(*vfs);
+    game_list->PopulateAsync(UISettings::values.game_dirs);
+
+    if (ContentManager::AreKeysPresent()) {
+        QMessageBox::information(this, tr("Decryption Keys install succeeded"),
+                                 tr("Decryption Keys were successfully installed"));
+    } else {
+        QMessageBox::critical(
+            this, tr("Decryption Keys install failed"),
+            tr("Decryption Keys failed to initialize. Check that your dumping tools are "
+               "up to date and re-dump keys."));
+    }
+
+    OnCheckFirmwareDecryption();
+}
+
 void GMainWindow::OnAbout() {
     AboutDialog aboutDialog(this);
     aboutDialog.exec();
diff --git a/src/yuzu/main.h b/src/yuzu/main.h
index 1f0e35c67..fce643f3f 100644
--- a/src/yuzu/main.h
+++ b/src/yuzu/main.h
@@ -381,6 +381,7 @@ private slots:
     void OnOpenYuzuFolder();
     void OnVerifyInstalledContents();
     void OnInstallFirmware();
+    void OnInstallDecryptionKeys();
     void OnAbout();
     void OnToggleFilterBar();
     void OnToggleStatusBar();
diff --git a/src/yuzu/main.ui b/src/yuzu/main.ui
index 6ff444a22..85dc1f2f6 100644
--- a/src/yuzu/main.ui
+++ b/src/yuzu/main.ui
@@ -165,8 +165,9 @@
      <addaction name="separator"/>
      <addaction name="action_Configure_Tas"/>
     </widget>
-    <addaction name="action_Verify_installed_contents"/>
+    <addaction name="action_Install_Keys"/>
     <addaction name="action_Install_Firmware"/>
+    <addaction name="action_Verify_installed_contents"/>
     <addaction name="separator"/>
     <addaction name="menu_cabinet_applet"/>
     <addaction name="action_Load_Album"/>
@@ -469,6 +470,11 @@
     <string>Install Firmware</string>
    </property>
   </action>
+  <action name="action_Install_Keys">
+   <property name="text">
+    <string>Install Decryption Keys</string>
+   </property>
+  </action>
  </widget>
  <resources>
   <include location="yuzu.qrc"/>