47 files changed, 1155 insertions, 379 deletions

diff --git a/git b/git
deleted file mode 100644
index e69de29bb..000000000
--- a/git
+++ /dev/null
diff --git a/src/audio_core/time_stretch.cpp b/src/audio_core/time_stretch.cpp
index d72d67994..cee8b12dd 100644
--- a/src/audio_core/time_stretch.cpp
+++ b/src/audio_core/time_stretch.cpp
@@ -10,8 +10,7 @@
 
 namespace AudioCore {
 
-TimeStretcher::TimeStretcher(u32 sample_rate, u32 channel_count)
-    : m_sample_rate(sample_rate), m_channel_count(channel_count) {
+TimeStretcher::TimeStretcher(u32 sample_rate, u32 channel_count) : m_sample_rate{sample_rate} {
     m_sound_touch.setChannels(channel_count);
     m_sound_touch.setSampleRate(sample_rate);
     m_sound_touch.setPitch(1.0);
diff --git a/src/audio_core/time_stretch.h b/src/audio_core/time_stretch.h
index decd760f1..bb2270b96 100644
--- a/src/audio_core/time_stretch.h
+++ b/src/audio_core/time_stretch.h
@@ -27,7 +27,6 @@ public:
 
 private:
     u32 m_sample_rate;
-    u32 m_channel_count;
     soundtouch::SoundTouch m_sound_touch;
     double m_stretch_ratio = 1.0;
 };
diff --git a/src/common/logging/backend.cpp b/src/common/logging/backend.cpp
index 9f5918851..6d5218465 100644
--- a/src/common/logging/backend.cpp
+++ b/src/common/logging/backend.cpp
@@ -196,6 +196,7 @@ void FileBackend::Write(const Entry& entry) {
     SUB(Service, NFP)                                                                              \
     SUB(Service, NIFM)                                                                             \
     SUB(Service, NIM)                                                                              \
+    SUB(Service, NPNS)                                                                             \
     SUB(Service, NS)                                                                               \
     SUB(Service, NVDRV)                                                                            \
     SUB(Service, PCIE)                                                                             \
@@ -204,10 +205,12 @@ void FileBackend::Write(const Entry& entry) {
     SUB(Service, PM)                                                                               \
     SUB(Service, PREPO)                                                                            \
     SUB(Service, PSC)                                                                              \
+    SUB(Service, PSM)                                                                              \
     SUB(Service, SET)                                                                              \
     SUB(Service, SM)                                                                               \
     SUB(Service, SPL)                                                                              \
     SUB(Service, SSL)                                                                              \
+    SUB(Service, TCAP)                                                                             \
     SUB(Service, Time)                                                                             \
     SUB(Service, USB)                                                                              \
     SUB(Service, VI)                                                                               \
diff --git a/src/common/logging/log.h b/src/common/logging/log.h
index c9161155a..d4ec31ec3 100644
--- a/src/common/logging/log.h
+++ b/src/common/logging/log.h
@@ -83,6 +83,7 @@ enum class Class : ClassType {
     Service_NFP,       ///< The NFP service
     Service_NIFM,      ///< The NIFM (Network interface) service
     Service_NIM,       ///< The NIM service
+    Service_NPNS,      ///< The NPNS service
     Service_NS,        ///< The NS services
     Service_NVDRV,     ///< The NVDRV (Nvidia driver) service
     Service_PCIE,      ///< The PCIe service
@@ -96,6 +97,7 @@ enum class Class : ClassType {
     Service_SM,        ///< The SM (Service manager) service
     Service_SPL,       ///< The SPL service
     Service_SSL,       ///< The SSL service
+    Service_TCAP,      ///< The TCAP service.
     Service_Time,      ///< The time service
     Service_USB,       ///< The USB (Universal Serial Bus) service
     Service_VI,        ///< The VI (Video interface) service
diff --git a/src/core/crypto/key_manager.cpp b/src/core/crypto/key_manager.cpp
index fd0786068..fefc3c747 100644
--- a/src/core/crypto/key_manager.cpp
+++ b/src/core/crypto/key_manager.cpp
@@ -713,7 +713,6 @@ void KeyManager::DeriveBase() {
 
     const auto sbk = GetKey(S128KeyType::SecureBoot);
     const auto tsec = GetKey(S128KeyType::TSEC);
-    const auto master_source = GetKey(S128KeyType::Source, static_cast<u64>(SourceKeyType::Master));
 
     for (size_t i = 0; i < revisions.size(); ++i) {
         if (!revisions[i])
diff --git a/src/core/file_sys/ips_layer.cpp b/src/core/file_sys/ips_layer.cpp
index 554eae9bc..999939d5a 100644
--- a/src/core/file_sys/ips_layer.cpp
+++ b/src/core/file_sys/ips_layer.cpp
@@ -99,7 +99,7 @@ VirtualFile PatchIPS(const VirtualFile& in, const VirtualFile& ips) {
             u16 rle_size{};
             if (ips->ReadObject(&rle_size, offset) != sizeof(u16))
                 return nullptr;
-            rle_size = Common::swap16(data_size);
+            rle_size = Common::swap16(rle_size);
             offset += sizeof(u16);
 
             const auto data = ips->ReadByte(offset++);
diff --git a/src/core/file_sys/vfs.cpp b/src/core/file_sys/vfs.cpp
index bfe50da73..3824c74e0 100644
--- a/src/core/file_sys/vfs.cpp
+++ b/src/core/file_sys/vfs.cpp
@@ -472,10 +472,14 @@ bool VfsRawCopy(const VirtualFile& src, const VirtualFile& dest, std::size_t blo
     std::vector<u8> temp(std::min(block_size, src->GetSize()));
     for (std::size_t i = 0; i < src->GetSize(); i += block_size) {
         const auto read = std::min(block_size, src->GetSize() - i);
-        const auto block = src->Read(temp.data(), read, i);
 
-        if (dest->Write(temp.data(), read, i) != read)
+        if (src->Read(temp.data(), read, i) != read) {
             return false;
+        }
+
+        if (dest->Write(temp.data(), read, i) != read) {
+            return false;
+        }
     }
 
     return true;
diff --git a/src/core/hle/ipc.h b/src/core/hle/ipc.h
index 419f45896..ed84197b3 100644
--- a/src/core/hle/ipc.h
+++ b/src/core/hle/ipc.h
@@ -14,11 +14,6 @@ namespace IPC {
 /// Size of the command buffer area, in 32-bit words.
 constexpr std::size_t COMMAND_BUFFER_LENGTH = 0x100 / sizeof(u32);
 
-// These errors are commonly returned by invalid IPC translations, so alias them here for
-// convenience.
-// TODO(yuriks): These will probably go away once translation is implemented inside the kernel.
-constexpr auto ERR_INVALID_HANDLE = Kernel::ERR_INVALID_HANDLE_OS;
-
 enum class ControlCommand : u32 {
     ConvertSessionToDomain = 0,
     ConvertDomainToSession = 1,
diff --git a/src/core/hle/kernel/errors.h b/src/core/hle/kernel/errors.h
index 885259618..ee698c8a7 100644
--- a/src/core/hle/kernel/errors.h
+++ b/src/core/hle/kernel/errors.h
@@ -10,11 +10,6 @@ namespace Kernel {
 
 namespace ErrCodes {
 enum {
-    // TODO(Subv): Remove these 3DS OS error codes.
-    SessionClosedByRemote = 26,
-    NoPendingSessions = 35,
-    InvalidBufferDescriptor = 48,
-
     // Confirmed Switch OS error codes
     MaxConnectionsReached = 7,
     InvalidSize = 101,
@@ -26,6 +21,7 @@ enum {
     InvalidThreadPriority = 112,
     InvalidProcessorId = 113,
     InvalidHandle = 114,
+    InvalidPointer = 115,
     InvalidCombination = 116,
     Timeout = 117,
     SynchronizationCanceled = 118,
@@ -33,6 +29,7 @@ enum {
     InvalidEnumValue = 120,
     NoSuchEntry = 121,
     AlreadyRegistered = 122,
+    SessionClosed = 123,
     InvalidState = 125,
     ResourceLimitExceeded = 132,
 };
@@ -41,18 +38,14 @@ enum {
 // WARNING: The kernel is quite inconsistent in it's usage of errors code. Make sure to always
 // double check that the code matches before re-using the constant.
 
-// TODO(bunnei): Replace -1 with correct errors for Switch OS
 constexpr ResultCode ERR_HANDLE_TABLE_FULL(ErrorModule::Kernel, ErrCodes::HandleTableFull);
-constexpr ResultCode ERR_SESSION_CLOSED_BY_REMOTE(-1);
+constexpr ResultCode ERR_SESSION_CLOSED_BY_REMOTE(ErrorModule::Kernel, ErrCodes::SessionClosed);
 constexpr ResultCode ERR_PORT_NAME_TOO_LONG(ErrorModule::Kernel, ErrCodes::TooLarge);
 constexpr ResultCode ERR_MAX_CONNECTIONS_REACHED(ErrorModule::Kernel,
                                                  ErrCodes::MaxConnectionsReached);
 constexpr ResultCode ERR_INVALID_ENUM_VALUE(ErrorModule::Kernel, ErrCodes::InvalidEnumValue);
-constexpr ResultCode ERR_INVALID_ENUM_VALUE_FND(-1);
-constexpr ResultCode ERR_INVALID_COMBINATION(-1);
 constexpr ResultCode ERR_INVALID_COMBINATION_KERNEL(ErrorModule::Kernel,
                                                     ErrCodes::InvalidCombination);
-constexpr ResultCode ERR_OUT_OF_MEMORY(-1);
 constexpr ResultCode ERR_INVALID_ADDRESS(ErrorModule::Kernel, ErrCodes::InvalidAddress);
 constexpr ResultCode ERR_INVALID_ADDRESS_STATE(ErrorModule::Kernel, ErrCodes::InvalidMemoryState);
 constexpr ResultCode ERR_INVALID_MEMORY_PERMISSIONS(ErrorModule::Kernel,
@@ -65,14 +58,8 @@ constexpr ResultCode ERR_ALREADY_REGISTERED(ErrorModule::Kernel, ErrCodes::Alrea
 constexpr ResultCode ERR_INVALID_STATE(ErrorModule::Kernel, ErrCodes::InvalidState);
 constexpr ResultCode ERR_INVALID_THREAD_PRIORITY(ErrorModule::Kernel,
                                                  ErrCodes::InvalidThreadPriority);
-constexpr ResultCode ERR_INVALID_POINTER(-1);
-constexpr ResultCode ERR_INVALID_OBJECT_ADDR(-1);
-constexpr ResultCode ERR_NOT_AUTHORIZED(-1);
-/// Alternate code returned instead of ERR_INVALID_HANDLE in some code paths.
-constexpr ResultCode ERR_INVALID_HANDLE_OS(-1);
+constexpr ResultCode ERR_INVALID_POINTER(ErrorModule::Kernel, ErrCodes::InvalidPointer);
 constexpr ResultCode ERR_NOT_FOUND(ErrorModule::Kernel, ErrCodes::NoSuchEntry);
 constexpr ResultCode RESULT_TIMEOUT(ErrorModule::Kernel, ErrCodes::Timeout);
-/// Returned when Accept() is called on a port with no sessions to be accepted.
-constexpr ResultCode ERR_NO_PENDING_SESSIONS(-1);
 
 } // namespace Kernel
diff --git a/src/core/hle/kernel/process.cpp b/src/core/hle/kernel/process.cpp
index 073dd5a7d..420218d59 100644
--- a/src/core/hle/kernel/process.cpp
+++ b/src/core/hle/kernel/process.cpp
@@ -232,6 +232,12 @@ void Process::LoadModule(CodeSet module_, VAddr base_addr) {
     MapSegment(module_.CodeSegment(), VMAPermission::ReadExecute, MemoryState::CodeStatic);
     MapSegment(module_.RODataSegment(), VMAPermission::Read, MemoryState::CodeMutable);
     MapSegment(module_.DataSegment(), VMAPermission::ReadWrite, MemoryState::CodeMutable);
+
+    // Clear instruction cache in CPU JIT
+    Core::System::GetInstance().ArmInterface(0).ClearInstructionCache();
+    Core::System::GetInstance().ArmInterface(1).ClearInstructionCache();
+    Core::System::GetInstance().ArmInterface(2).ClearInstructionCache();
+    Core::System::GetInstance().ArmInterface(3).ClearInstructionCache();
 }
 
 ResultVal<VAddr> Process::HeapAllocate(VAddr target, u64 size, VMAPermission perms) {
diff --git a/src/core/hle/kernel/server_port.cpp b/src/core/hle/kernel/server_port.cpp
index 3792e3e18..d6ceeb2da 100644
--- a/src/core/hle/kernel/server_port.cpp
+++ b/src/core/hle/kernel/server_port.cpp
@@ -18,7 +18,7 @@ ServerPort::~ServerPort() = default;
 
 ResultVal<SharedPtr<ServerSession>> ServerPort::Accept() {
     if (pending_sessions.empty()) {
-        return ERR_NO_PENDING_SESSIONS;
+        return ERR_NOT_FOUND;
     }
 
     auto session = std::move(pending_sessions.back());
@@ -28,7 +28,7 @@ ResultVal<SharedPtr<ServerSession>> ServerPort::Accept() {
 
 bool ServerPort::ShouldWait(Thread* thread) const {
     // If there are no pending sessions, we wait until a new one is added.
-    return pending_sessions.size() == 0;
+    return pending_sessions.empty();
 }
 
 void ServerPort::Acquire(Thread* thread) {
diff --git a/src/core/hle/kernel/shared_memory.cpp b/src/core/hle/kernel/shared_memory.cpp
index d061e6155..a016a86b6 100644
--- a/src/core/hle/kernel/shared_memory.cpp
+++ b/src/core/hle/kernel/shared_memory.cpp
@@ -80,20 +80,19 @@ SharedPtr<SharedMemory> SharedMemory::CreateForApplet(
 
 ResultCode SharedMemory::Map(Process* target_process, VAddr address, MemoryPermission permissions,
                              MemoryPermission other_permissions) {
-
-    MemoryPermission own_other_permissions =
+    const MemoryPermission own_other_permissions =
         target_process == owner_process ? this->permissions : this->other_permissions;
 
     // Automatically allocated memory blocks can only be mapped with other_permissions = DontCare
     if (base_address == 0 && other_permissions != MemoryPermission::DontCare) {
-        return ERR_INVALID_COMBINATION;
+        return ERR_INVALID_MEMORY_PERMISSIONS;
     }
 
     // Error out if the requested permissions don't match what the creator process allows.
     if (static_cast<u32>(permissions) & ~static_cast<u32>(own_other_permissions)) {
         LOG_ERROR(Kernel, "cannot map id={}, address=0x{:X} name={}, permissions don't match",
                   GetObjectId(), address, name);
-        return ERR_INVALID_COMBINATION;
+        return ERR_INVALID_MEMORY_PERMISSIONS;
     }
 
     // Error out if the provided permissions are not compatible with what the creator process needs.
diff --git a/src/core/hle/kernel/svc.cpp b/src/core/hle/kernel/svc.cpp
index 9a783d524..a5302d924 100644
--- a/src/core/hle/kernel/svc.cpp
+++ b/src/core/hle/kernel/svc.cpp
@@ -594,16 +594,17 @@ static ResultCode SetThreadPriority(Handle handle, u32 priority) {
     }
 
     const auto* const current_process = Core::CurrentProcess();
-    SharedPtr<Thread> thread = current_process->GetHandleTable().Get<Thread>(handle);
-    if (!thread) {
-        return ERR_INVALID_HANDLE;
-    }
 
     // Note: The kernel uses the current process's resource limit instead of
     // the one from the thread owner's resource limit.
     const ResourceLimit& resource_limit = current_process->GetResourceLimit();
     if (resource_limit.GetMaxResourceValue(ResourceType::Priority) > priority) {
-        return ERR_NOT_AUTHORIZED;
+        return ERR_INVALID_THREAD_PRIORITY;
+    }
+
+    SharedPtr<Thread> thread = current_process->GetHandleTable().Get<Thread>(handle);
+    if (!thread) {
+        return ERR_INVALID_HANDLE;
     }
 
     thread->SetPriority(priority);
@@ -745,7 +746,7 @@ static ResultCode CreateThread(Handle* out_handle, VAddr entry_point, u64 arg, V
     auto* const current_process = Core::CurrentProcess();
     const ResourceLimit& resource_limit = current_process->GetResourceLimit();
     if (resource_limit.GetMaxResourceValue(ResourceType::Priority) > priority) {
-        return ERR_NOT_AUTHORIZED;
+        return ERR_INVALID_THREAD_PRIORITY;
     }
 
     if (processor_id == THREADPROCESSORID_DEFAULT) {
diff --git a/src/core/hle/kernel/vm_manager.cpp b/src/core/hle/kernel/vm_manager.cpp
index e1a34eef1..1a92c8f70 100644
--- a/src/core/hle/kernel/vm_manager.cpp
+++ b/src/core/hle/kernel/vm_manager.cpp
@@ -143,6 +143,26 @@ ResultVal<VMManager::VMAHandle> VMManager::MapBackingMemory(VAddr target, u8* me
     return MakeResult<VMAHandle>(MergeAdjacent(vma_handle));
 }
 
+ResultVal<VAddr> VMManager::FindFreeRegion(u64 size) const {
+    // Find the first Free VMA.
+    const VAddr base = GetASLRRegionBaseAddress();
+    const VMAHandle vma_handle = std::find_if(vma_map.begin(), vma_map.end(), [&](const auto& vma) {
+        if (vma.second.type != VMAType::Free)
+            return false;
+
+        const VAddr vma_end = vma.second.base + vma.second.size;
+        return vma_end > base && vma_end >= base + size;
+    });
+
+    if (vma_handle == vma_map.end()) {
+        // TODO(Subv): Find the correct error code here.
+        return ResultCode(-1);
+    }
+
+    const VAddr target = std::max(base, vma_handle->second.base);
+    return MakeResult<VAddr>(target);
+}
+
 ResultVal<VMManager::VMAHandle> VMManager::MapMMIO(VAddr target, PAddr paddr, u64 size,
                                                    MemoryState state,
                                                    Memory::MemoryHookPointer mmio_handler) {
diff --git a/src/core/hle/kernel/vm_manager.h b/src/core/hle/kernel/vm_manager.h
index 84c890224..2447cbb8f 100644
--- a/src/core/hle/kernel/vm_manager.h
+++ b/src/core/hle/kernel/vm_manager.h
@@ -158,6 +158,14 @@ public:
     ResultVal<VMAHandle> MapBackingMemory(VAddr target, u8* memory, u64 size, MemoryState state);
 
     /**
+     * Finds the first free address that can hold a region of the desired size.
+     *
+     * @param size Size of the desired region.
+     * @return The found free address.
+     */
+    ResultVal<VAddr> FindFreeRegion(u64 size) const;
+
+    /**
      * Maps a memory-mapped IO region at a given address.
      *
      * @param target The guest address to start the mapping at.
diff --git a/src/core/hle/service/acc/acc.cpp b/src/core/hle/service/acc/acc.cpp
index e61748ca3..c6437a671 100644
--- a/src/core/hle/service/acc/acc.cpp
+++ b/src/core/hle/service/acc/acc.cpp
@@ -2,9 +2,13 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
+#include <algorithm>
 #include <array>
+#include "common/common_paths.h"
 #include "common/common_types.h"
+#include "common/file_util.h"
 #include "common/logging/log.h"
+#include "common/string_util.h"
 #include "common/swap.h"
 #include "core/core_timing.h"
 #include "core/hle/ipc_helpers.h"
@@ -16,6 +20,7 @@
 #include "core/hle/service/acc/profile_manager.h"
 
 namespace Service::Account {
+
 // TODO: RE this structure
 struct UserData {
     INSERT_PADDING_WORDS(1);
@@ -27,6 +32,29 @@ struct UserData {
 };
 static_assert(sizeof(UserData) == 0x80, "UserData structure has incorrect size");
 
+// Smallest JPEG https://github.com/mathiasbynens/small/blob/master/jpeg.jpg
+// used as a backup should the one on disk not exist
+constexpr u32 backup_jpeg_size = 107;
+constexpr std::array<u8, backup_jpeg_size> backup_jpeg{{
+    0xff, 0xd8, 0xff, 0xdb, 0x00, 0x43, 0x00, 0x03, 0x02, 0x02, 0x02, 0x02, 0x02, 0x03, 0x02, 0x02,
+    0x02, 0x03, 0x03, 0x03, 0x03, 0x04, 0x06, 0x04, 0x04, 0x04, 0x04, 0x04, 0x08, 0x06, 0x06, 0x05,
+    0x06, 0x09, 0x08, 0x0a, 0x0a, 0x09, 0x08, 0x09, 0x09, 0x0a, 0x0c, 0x0f, 0x0c, 0x0a, 0x0b, 0x0e,
+    0x0b, 0x09, 0x09, 0x0d, 0x11, 0x0d, 0x0e, 0x0f, 0x10, 0x10, 0x11, 0x10, 0x0a, 0x0c, 0x12, 0x13,
+    0x12, 0x10, 0x13, 0x0f, 0x10, 0x10, 0x10, 0xff, 0xc9, 0x00, 0x0b, 0x08, 0x00, 0x01, 0x00, 0x01,
+    0x01, 0x01, 0x11, 0x00, 0xff, 0xcc, 0x00, 0x06, 0x00, 0x10, 0x10, 0x05, 0xff, 0xda, 0x00, 0x08,
+    0x01, 0x01, 0x00, 0x00, 0x3f, 0x00, 0xd2, 0xcf, 0x20, 0xff, 0xd9,
+}};
+
+static std::string GetImagePath(UUID uuid) {
+    return FileUtil::GetUserPath(FileUtil::UserPath::NANDDir) +
+           "/system/save/8000000000000010/su/avators/" + uuid.FormatSwitch() + ".jpg";
+}
+
+static constexpr u32 SanitizeJPEGSize(std::size_t size) {
+    constexpr std::size_t max_jpeg_image_size = 0x20000;
+    return static_cast<u32>(std::min(size, max_jpeg_image_size));
+}
+
 class IProfile final : public ServiceFramework<IProfile> {
 public:
     explicit IProfile(UUID user_id, ProfileManager& profile_manager)
@@ -73,32 +101,42 @@ private:
     }
 
     void LoadImage(Kernel::HLERequestContext& ctx) {
-        LOG_WARNING(Service_ACC, "(STUBBED) called");
-        // smallest jpeg https://github.com/mathiasbynens/small/blob/master/jpeg.jpg
-        // TODO(mailwl): load actual profile image from disk, width 256px, max size 0x20000
-        constexpr u32 jpeg_size = 107;
-        static constexpr std::array<u8, jpeg_size> jpeg{
-            0xff, 0xd8, 0xff, 0xdb, 0x00, 0x43, 0x00, 0x03, 0x02, 0x02, 0x02, 0x02, 0x02, 0x03,
-            0x02, 0x02, 0x02, 0x03, 0x03, 0x03, 0x03, 0x04, 0x06, 0x04, 0x04, 0x04, 0x04, 0x04,
-            0x08, 0x06, 0x06, 0x05, 0x06, 0x09, 0x08, 0x0a, 0x0a, 0x09, 0x08, 0x09, 0x09, 0x0a,
-            0x0c, 0x0f, 0x0c, 0x0a, 0x0b, 0x0e, 0x0b, 0x09, 0x09, 0x0d, 0x11, 0x0d, 0x0e, 0x0f,
-            0x10, 0x10, 0x11, 0x10, 0x0a, 0x0c, 0x12, 0x13, 0x12, 0x10, 0x13, 0x0f, 0x10, 0x10,
-            0x10, 0xff, 0xc9, 0x00, 0x0b, 0x08, 0x00, 0x01, 0x00, 0x01, 0x01, 0x01, 0x11, 0x00,
-            0xff, 0xcc, 0x00, 0x06, 0x00, 0x10, 0x10, 0x05, 0xff, 0xda, 0x00, 0x08, 0x01, 0x01,
-            0x00, 0x00, 0x3f, 0x00, 0xd2, 0xcf, 0x20, 0xff, 0xd9,
-        };
-        ctx.WriteBuffer(jpeg);
+        LOG_DEBUG(Service_ACC, "called");
+
         IPC::ResponseBuilder rb{ctx, 3};
         rb.Push(RESULT_SUCCESS);
-        rb.Push<u32>(jpeg_size);
+
+        const FileUtil::IOFile image(GetImagePath(user_id), "rb");
+        if (!image.IsOpen()) {
+            LOG_WARNING(Service_ACC,
+                        "Failed to load user provided image! Falling back to built-in backup...");
+            ctx.WriteBuffer(backup_jpeg);
+            rb.Push<u32>(backup_jpeg_size);
+            return;
+        }
+
+        const u32 size = SanitizeJPEGSize(image.GetSize());
+        std::vector<u8> buffer(size);
+        image.ReadBytes(buffer.data(), buffer.size());
+
+        ctx.WriteBuffer(buffer.data(), buffer.size());
+        rb.Push<u32>(size);
     }
 
     void GetImageSize(Kernel::HLERequestContext& ctx) {
-        LOG_WARNING(Service_ACC, "(STUBBED) called");
-        constexpr u32 jpeg_size = 107;
+        LOG_DEBUG(Service_ACC, "called");
         IPC::ResponseBuilder rb{ctx, 3};
         rb.Push(RESULT_SUCCESS);
-        rb.Push<u32>(jpeg_size);
+
+        const FileUtil::IOFile image(GetImagePath(user_id), "rb");
+
+        if (!image.IsOpen()) {
+            LOG_WARNING(Service_ACC,
+                        "Failed to load user provided image! Falling back to built-in backup...");
+            rb.Push<u32>(backup_jpeg_size);
+        } else {
+            rb.Push<u32>(SanitizeJPEGSize(image.GetSize()));
+        }
     }
 
     const ProfileManager& profile_manager;
diff --git a/src/core/hle/service/acc/profile_manager.cpp b/src/core/hle/service/acc/profile_manager.cpp
index bcb3475db..3cac1b4ff 100644
--- a/src/core/hle/service/acc/profile_manager.cpp
+++ b/src/core/hle/service/acc/profile_manager.cpp
@@ -3,41 +3,66 @@
 // Refer to the license.txt file included.
 
 #include <random>
-#include <boost/optional.hpp>
+
+#include "common/file_util.h"
 #include "core/hle/service/acc/profile_manager.h"
 #include "core/settings.h"
 
 namespace Service::Account {
+
+struct UserRaw {
+    UUID uuid;
+    UUID uuid2;
+    u64 timestamp;
+    ProfileUsername username;
+    INSERT_PADDING_BYTES(0x80);
+};
+static_assert(sizeof(UserRaw) == 0xC8, "UserRaw has incorrect size.");
+
+struct ProfileDataRaw {
+    INSERT_PADDING_BYTES(0x10);
+    std::array<UserRaw, MAX_USERS> users;
+};
+static_assert(sizeof(ProfileDataRaw) == 0x650, "ProfileDataRaw has incorrect size.");
+
 // TODO(ogniK): Get actual error codes
 constexpr ResultCode ERROR_TOO_MANY_USERS(ErrorModule::Account, -1);
 constexpr ResultCode ERROR_USER_ALREADY_EXISTS(ErrorModule::Account, -2);
 constexpr ResultCode ERROR_ARGUMENT_IS_NULL(ErrorModule::Account, 20);
 
-const UUID& UUID::Generate() {
+constexpr char ACC_SAVE_AVATORS_BASE_PATH[] = "/system/save/8000000000000010/su/avators/";
+
+UUID UUID::Generate() {
     std::random_device device;
     std::mt19937 gen(device());
     std::uniform_int_distribution<u64> distribution(1, std::numeric_limits<u64>::max());
-    uuid[0] = distribution(gen);
-    uuid[1] = distribution(gen);
-    return *this;
+    return UUID{distribution(gen), distribution(gen)};
 }
 
 ProfileManager::ProfileManager() {
-    // TODO(ogniK): Create the default user we have for now until loading/saving users is added
-    auto user_uuid = UUID{1, 0};
-    ASSERT(CreateNewUser(user_uuid, Settings::values.username).IsSuccess());
-    OpenUser(user_uuid);
+    ParseUserSaveFile();
+
+    if (user_count == 0)
+        CreateNewUser(UUID::Generate(), "yuzu");
+
+    auto current = std::clamp<int>(Settings::values.current_user, 0, MAX_USERS - 1);
+    if (UserExistsIndex(current))
+        current = 0;
+
+    OpenUser(*GetUser(current));
 }
 
-ProfileManager::~ProfileManager() = default;
+ProfileManager::~ProfileManager() {
+    WriteUserSaveFile();
+}
 
 /// After a users creation it needs to be "registered" to the system. AddToProfiles handles the
 /// internal management of the users profiles
-boost::optional<std::size_t> ProfileManager::AddToProfiles(const ProfileInfo& user) {
+std::optional<std::size_t> ProfileManager::AddToProfiles(const ProfileInfo& profile) {
     if (user_count >= MAX_USERS) {
-        return boost::none;
+        return {};
     }
-    profiles[user_count] = user;
+    profiles[user_count] = profile;
     return user_count++;
 }
 
@@ -56,7 +81,7 @@ bool ProfileManager::RemoveProfileAtIndex(std::size_t index) {
 
 /// Helper function to register a user to the system
 ResultCode ProfileManager::AddUser(const ProfileInfo& user) {
-    if (AddToProfiles(user) == boost::none) {
+    if (!AddToProfiles(user)) {
         return ERROR_TOO_MANY_USERS;
     }
     return RESULT_SUCCESS;
@@ -101,31 +126,40 @@ ResultCode ProfileManager::CreateNewUser(UUID uuid, const std::string& username)
     return CreateNewUser(uuid, username_output);
 }
 
+std::optional<UUID> ProfileManager::GetUser(std::size_t index) const {
+    if (index >= MAX_USERS) {
+        return {};
+    }
+
+    return profiles[index].user_uuid;
+}
+
 /// Returns a users profile index based on their user id.
-boost::optional<std::size_t> ProfileManager::GetUserIndex(const UUID& uuid) const {
+std::optional<std::size_t> ProfileManager::GetUserIndex(const UUID& uuid) const {
     if (!uuid) {
-        return boost::none;
+        return {};
     }
-    auto iter = std::find_if(profiles.begin(), profiles.end(),
-                             [&uuid](const ProfileInfo& p) { return p.user_uuid == uuid; });
+
+    const auto iter = std::find_if(profiles.begin(), profiles.end(),
+                                   [&uuid](const ProfileInfo& p) { return p.user_uuid == uuid; });
     if (iter == profiles.end()) {
-        return boost::none;
+        return {};
     }
+
     return static_cast<std::size_t>(std::distance(profiles.begin(), iter));
 }
 
 /// Returns a users profile index based on their profile
-boost::optional<std::size_t> ProfileManager::GetUserIndex(const ProfileInfo& user) const {
+std::optional<std::size_t> ProfileManager::GetUserIndex(const ProfileInfo& user) const {
     return GetUserIndex(user.user_uuid);
 }
 
 /// Returns the data structure used by the switch when GetProfileBase is called on acc:*
-bool ProfileManager::GetProfileBase(boost::optional<std::size_t> index,
-                                    ProfileBase& profile) const {
-    if (index == boost::none || index >= MAX_USERS) {
+bool ProfileManager::GetProfileBase(std::optional<std::size_t> index, ProfileBase& profile) const {
+    if (!index || index >= MAX_USERS) {
         return false;
     }
-    const auto& prof_info = profiles[index.get()];
+    const auto& prof_info = profiles[*index];
     profile.user_uuid = prof_info.user_uuid;
     profile.username = prof_info.username;
     profile.timestamp = prof_info.creation_time;
@@ -134,7 +168,7 @@ bool ProfileManager::GetProfileBase(boost::optional<std::size_t> index,
 
 /// Returns the data structure used by the switch when GetProfileBase is called on acc:*
 bool ProfileManager::GetProfileBase(UUID uuid, ProfileBase& profile) const {
-    auto idx = GetUserIndex(uuid);
+    const auto idx = GetUserIndex(uuid);
     return GetProfileBase(idx, profile);
 }
 
@@ -161,26 +195,34 @@ std::size_t ProfileManager::GetOpenUserCount() const {
 
 /// Checks if a user id exists in our profile manager
 bool ProfileManager::UserExists(UUID uuid) const {
-    return (GetUserIndex(uuid) != boost::none);
+    return GetUserIndex(uuid) != std::nullopt;
+}
+
+bool ProfileManager::UserExistsIndex(std::size_t index) const {
+    if (index >= MAX_USERS)
+        return false;
+    return profiles[index].user_uuid.uuid != INVALID_UUID;
 }
 
 /// Opens a specific user
 void ProfileManager::OpenUser(UUID uuid) {
-    auto idx = GetUserIndex(uuid);
-    if (idx == boost::none) {
+    const auto idx = GetUserIndex(uuid);
+    if (!idx) {
         return;
     }
-    profiles[idx.get()].is_open = true;
+
+    profiles[*idx].is_open = true;
     last_opened_user = uuid;
 }
 
 /// Closes a specific user
 void ProfileManager::CloseUser(UUID uuid) {
-    auto idx = GetUserIndex(uuid);
-    if (idx == boost::none) {
+    const auto idx = GetUserIndex(uuid);
+    if (!idx) {
         return;
     }
-    profiles[idx.get()].is_open = false;
+
+    profiles[*idx].is_open = false;
 }
 
 /// Gets all valid user ids on the system
@@ -210,10 +252,10 @@ UUID ProfileManager::GetLastOpenedUser() const {
 }
 
 /// Return the users profile base and the unknown arbitary data.
-bool ProfileManager::GetProfileBaseAndData(boost::optional<std::size_t> index, ProfileBase& profile,
+bool ProfileManager::GetProfileBaseAndData(std::optional<std::size_t> index, ProfileBase& profile,
                                            ProfileData& data) const {
     if (GetProfileBase(index, profile)) {
-        data = profiles[index.get()].data;
+        data = profiles[*index].data;
         return true;
     }
     return false;
@@ -222,7 +264,7 @@ bool ProfileManager::GetProfileBaseAndData(boost::optional<std::size_t> index, P
 /// Return the users profile base and the unknown arbitary data.
 bool ProfileManager::GetProfileBaseAndData(UUID uuid, ProfileBase& profile,
                                            ProfileData& data) const {
-    auto idx = GetUserIndex(uuid);
+    const auto idx = GetUserIndex(uuid);
     return GetProfileBaseAndData(idx, profile, data);
 }
 
@@ -239,4 +281,96 @@ bool ProfileManager::CanSystemRegisterUser() const {
     // emulate qlaunch. Update this to dynamically change.
 }
 
+bool ProfileManager::RemoveUser(UUID uuid) {
+    const auto index = GetUserIndex(uuid);
+    if (!index) {
+        return false;
+    }
+
+    profiles[*index] = ProfileInfo{};
+    std::stable_partition(profiles.begin(), profiles.end(),
+                          [](const ProfileInfo& profile) { return profile.user_uuid; });
+    return true;
+}
+
+bool ProfileManager::SetProfileBase(UUID uuid, const ProfileBase& profile_new) {
+    const auto index = GetUserIndex(uuid);
+    if (!index || profile_new.user_uuid == UUID(INVALID_UUID)) {
+        return false;
+    }
+
+    auto& profile = profiles[*index];
+    profile.user_uuid = profile_new.user_uuid;
+    profile.username = profile_new.username;
+    profile.creation_time = profile_new.timestamp;
+
+    return true;
+}
+
+void ProfileManager::ParseUserSaveFile() {
+    FileUtil::IOFile save(FileUtil::GetUserPath(FileUtil::UserPath::NANDDir) +
+                              ACC_SAVE_AVATORS_BASE_PATH + "profiles.dat",
+                          "rb");
+
+    if (!save.IsOpen()) {
+        LOG_WARNING(Service_ACC, "Failed to load profile data from save data... Generating new "
+                                 "user 'yuzu' with random UUID.");
+        return;
+    }
+
+    ProfileDataRaw data;
+    if (save.ReadBytes(&data, sizeof(ProfileDataRaw)) != sizeof(ProfileDataRaw)) {
+        LOG_WARNING(Service_ACC, "profiles.dat is smaller than expected... Generating new user "
+                                 "'yuzu' with random UUID.");
+        return;
+    }
+
+    for (std::size_t i = 0; i < MAX_USERS; ++i) {
+        const auto& user = data.users[i];
+
+        if (user.uuid != UUID(INVALID_UUID))
+            AddUser({user.uuid, user.username, user.timestamp, {}, false});
+    }
+
+    std::stable_partition(profiles.begin(), profiles.end(),
+                          [](const ProfileInfo& profile) { return profile.user_uuid; });
+}
+
+void ProfileManager::WriteUserSaveFile() {
+    ProfileDataRaw raw{};
+
+    for (std::size_t i = 0; i < MAX_USERS; ++i) {
+        raw.users[i].username = profiles[i].username;
+        raw.users[i].uuid2 = profiles[i].user_uuid;
+        raw.users[i].uuid = profiles[i].user_uuid;
+        raw.users[i].timestamp = profiles[i].creation_time;
+    }
+
+    const auto raw_path =
+        FileUtil::GetUserPath(FileUtil::UserPath::NANDDir) + "/system/save/8000000000000010";
+    if (FileUtil::Exists(raw_path) && !FileUtil::IsDirectory(raw_path))
+        FileUtil::Delete(raw_path);
+
+    const auto path = FileUtil::GetUserPath(FileUtil::UserPath::NANDDir) +
+                      ACC_SAVE_AVATORS_BASE_PATH + "profiles.dat";
+
+    if (!FileUtil::CreateFullPath(path)) {
+        LOG_WARNING(Service_ACC, "Failed to create full path of profiles.dat. Create the directory "
+                                 "nand/system/save/8000000000000010/su/avators to mitigate this "
+                                 "issue.");
+        return;
+    }
+
+    FileUtil::IOFile save(path, "wb");
+
+    if (!save.IsOpen()) {
+        LOG_WARNING(Service_ACC, "Failed to write save data to file... No changes to user data "
+                                 "made in current session will be saved.");
+        return;
+    }
+
+    save.Resize(sizeof(ProfileDataRaw));
+    save.WriteBytes(&raw, sizeof(ProfileDataRaw));
+}
+
 }; // namespace Service::Account
diff --git a/src/core/hle/service/acc/profile_manager.h b/src/core/hle/service/acc/profile_manager.h
index bffd4cf4d..1cd2e51b2 100644
--- a/src/core/hle/service/acc/profile_manager.h
+++ b/src/core/hle/service/acc/profile_manager.h
@@ -5,8 +5,8 @@
 #pragma once
 
 #include <array>
+#include <optional>
 
-#include "boost/optional.hpp"
 #include "common/common_types.h"
 #include "common/swap.h"
 #include "core/hle/result.h"
@@ -36,7 +36,7 @@ struct UUID {
     }
 
     // TODO(ogniK): Properly generate uuids based on RFC-4122
-    const UUID& Generate();
+    static UUID Generate();
 
     // Set the UUID to {0,0} to be considered an invalid user
     void Invalidate() {
@@ -45,6 +45,15 @@ struct UUID {
     std::string Format() const {
         return fmt::format("0x{:016X}{:016X}", uuid[1], uuid[0]);
     }
+
+    std::string FormatSwitch() const {
+        std::array<u8, 16> s{};
+        std::memcpy(s.data(), uuid.data(), sizeof(u128));
+        return fmt::format("{:02x}{:02x}{:02x}{:02x}-{:02x}{:02x}-{:02x}{:02x}-{:02x}{:02x}-{:02x}{"
+                           ":02x}{:02x}{:02x}{:02x}{:02x}",
+                           s[0], s[1], s[2], s[3], s[4], s[5], s[6], s[7], s[8], s[9], s[10], s[11],
+                           s[12], s[13], s[14], s[15]);
+    }
 };
 static_assert(sizeof(UUID) == 16, "UUID is an invalid size!");
 
@@ -81,18 +90,19 @@ static_assert(sizeof(ProfileBase) == 0x38, "ProfileBase is an invalid size");
 /// objects
 class ProfileManager {
 public:
-    ProfileManager(); // TODO(ogniK): Load from system save
+    ProfileManager();
     ~ProfileManager();
 
     ResultCode AddUser(const ProfileInfo& user);
     ResultCode CreateNewUser(UUID uuid, const ProfileUsername& username);
     ResultCode CreateNewUser(UUID uuid, const std::string& username);
-    boost::optional<std::size_t> GetUserIndex(const UUID& uuid) const;
-    boost::optional<std::size_t> GetUserIndex(const ProfileInfo& user) const;
-    bool GetProfileBase(boost::optional<std::size_t> index, ProfileBase& profile) const;
+    std::optional<UUID> GetUser(std::size_t index) const;
+    std::optional<std::size_t> GetUserIndex(const UUID& uuid) const;
+    std::optional<std::size_t> GetUserIndex(const ProfileInfo& user) const;
+    bool GetProfileBase(std::optional<std::size_t> index, ProfileBase& profile) const;
     bool GetProfileBase(UUID uuid, ProfileBase& profile) const;
     bool GetProfileBase(const ProfileInfo& user, ProfileBase& profile) const;
-    bool GetProfileBaseAndData(boost::optional<std::size_t> index, ProfileBase& profile,
+    bool GetProfileBaseAndData(std::optional<std::size_t> index, ProfileBase& profile,
                                ProfileData& data) const;
     bool GetProfileBaseAndData(UUID uuid, ProfileBase& profile, ProfileData& data) const;
     bool GetProfileBaseAndData(const ProfileInfo& user, ProfileBase& profile,
@@ -100,6 +110,7 @@ public:
     std::size_t GetUserCount() const;
     std::size_t GetOpenUserCount() const;
     bool UserExists(UUID uuid) const;
+    bool UserExistsIndex(std::size_t index) const;
     void OpenUser(UUID uuid);
     void CloseUser(UUID uuid);
     UserIDArray GetOpenUsers() const;
@@ -108,11 +119,17 @@ public:
 
     bool CanSystemRegisterUser() const;
 
+    bool RemoveUser(UUID uuid);
+    bool SetProfileBase(UUID uuid, const ProfileBase& profile_new);
+
 private:
+    void ParseUserSaveFile();
+    void WriteUserSaveFile();
+    std::optional<std::size_t> AddToProfiles(const ProfileInfo& profile);
+    bool RemoveProfileAtIndex(std::size_t index);
+
     std::array<ProfileInfo, MAX_USERS> profiles{};
     std::size_t user_count = 0;
-    boost::optional<std::size_t> AddToProfiles(const ProfileInfo& profile);
-    bool RemoveProfileAtIndex(std::size_t index);
     UUID last_opened_user{INVALID_UUID};
 };
 
diff --git a/src/core/hle/service/am/am.cpp b/src/core/hle/service/am/am.cpp
index ecf72ae24..59aafd616 100644
--- a/src/core/hle/service/am/am.cpp
+++ b/src/core/hle/service/am/am.cpp
@@ -4,11 +4,13 @@
 
 #include <array>
 #include <cinttypes>
+#include <cstring>
 #include <stack>
 #include "core/core.h"
 #include "core/hle/ipc_helpers.h"
 #include "core/hle/kernel/event.h"
 #include "core/hle/kernel/process.h"
+#include "core/hle/service/acc/profile_manager.h"
 #include "core/hle/service/am/am.h"
 #include "core/hle/service/am/applet_ae.h"
 #include "core/hle/service/am/applet_oe.h"
@@ -26,6 +28,16 @@
 
 namespace Service::AM {
 
+constexpr u32 POP_LAUNCH_PARAMETER_MAGIC = 0xC79497CA;
+
+struct LaunchParameters {
+    u32_le magic;
+    u32_le is_account_selected;
+    u128 current_user;
+    INSERT_PADDING_BYTES(0x70);
+};
+static_assert(sizeof(LaunchParameters) == 0x88);
+
 IWindowController::IWindowController() : ServiceFramework("IWindowController") {
     // clang-format off
     static const FunctionInfo functions[] = {
@@ -724,20 +736,23 @@ void IApplicationFunctions::EndBlockingHomeButton(Kernel::HLERequestContext& ctx
 }
 
 void IApplicationFunctions::PopLaunchParameter(Kernel::HLERequestContext& ctx) {
-    constexpr std::array<u8, 0x88> data{{
-        0xca, 0x97, 0x94, 0xc7, // Magic
-        1,    0,    0,    0,    // IsAccountSelected (bool)
-        1,    0,    0,    0,    // User Id (word 0)
-        0,    0,    0,    0,    // User Id (word 1)
-        0,    0,    0,    0,    // User Id (word 2)
-        0,    0,    0,    0     // User Id (word 3)
-    }};
+    LaunchParameters params{};
 
-    std::vector<u8> buffer(data.begin(), data.end());
+    params.magic = POP_LAUNCH_PARAMETER_MAGIC;
+    params.is_account_selected = 1;
+
+    Account::ProfileManager profile_manager{};
+    const auto uuid = profile_manager.GetUser(Settings::values.current_user);
+    ASSERT(uuid != std::nullopt);
+    params.current_user = uuid->uuid;
 
     IPC::ResponseBuilder rb{ctx, 2, 0, 1};
 
     rb.Push(RESULT_SUCCESS);
+
+    std::vector<u8> buffer(sizeof(LaunchParameters));
+    std::memcpy(buffer.data(), &params, buffer.size());
+
     rb.PushIpcInterface<AM::IStorage>(buffer);
 
     LOG_DEBUG(Service_AM, "called");
diff --git a/src/core/hle/service/aoc/aoc_u.cpp b/src/core/hle/service/aoc/aoc_u.cpp
index 428069df2..54305cf05 100644
--- a/src/core/hle/service/aoc/aoc_u.cpp
+++ b/src/core/hle/service/aoc/aoc_u.cpp
@@ -24,8 +24,8 @@ namespace Service::AOC {
 constexpr u64 DLC_BASE_TITLE_ID_MASK = 0xFFFFFFFFFFFFE000;
 constexpr u64 DLC_BASE_TO_AOC_ID = 0x1000;
 
-static bool CheckAOCTitleIDMatchesBase(u64 base, u64 aoc) {
-    return (aoc & DLC_BASE_TITLE_ID_MASK) == base;
+static bool CheckAOCTitleIDMatchesBase(u64 title_id, u64 base) {
+    return (title_id & DLC_BASE_TITLE_ID_MASK) == base;
 }
 
 static std::vector<u64> AccumulateAOCTitleIDs() {
@@ -74,7 +74,7 @@ void AOC_U::CountAddOnContent(Kernel::HLERequestContext& ctx) {
     const auto current = Core::System::GetInstance().CurrentProcess()->GetTitleID();
     rb.Push<u32>(static_cast<u32>(
         std::count_if(add_on_content.begin(), add_on_content.end(),
-                      [&current](u64 tid) { return (tid & DLC_BASE_TITLE_ID_MASK) == current; })));
+                      [current](u64 tid) { return CheckAOCTitleIDMatchesBase(tid, current); })));
 }
 
 void AOC_U::ListAddOnContent(Kernel::HLERequestContext& ctx) {
diff --git a/src/core/hle/service/hid/controllers/npad.cpp b/src/core/hle/service/hid/controllers/npad.cpp
index b06e65a77..4b4d1324f 100644
--- a/src/core/hle/service/hid/controllers/npad.cpp
+++ b/src/core/hle/service/hid/controllers/npad.cpp
@@ -108,9 +108,10 @@ void Controller_NPad::OnInit() {
     styleset_changed_event =
         Kernel::Event::Create(kernel, Kernel::ResetType::OneShot, "npad:NpadStyleSetChanged");
 
-    if (!IsControllerActivated())
+    if (!IsControllerActivated()) {
         return;
-    std::size_t controller{};
+    }
+
     if (style.raw == 0) {
         // We want to support all controllers
         style.handheld.Assign(1);
diff --git a/src/core/hle/service/ldr/ldr.cpp b/src/core/hle/service/ldr/ldr.cpp
index ec32faf15..d607d985e 100644
--- a/src/core/hle/service/ldr/ldr.cpp
+++ b/src/core/hle/service/ldr/ldr.cpp
@@ -3,9 +3,13 @@
 // Refer to the license.txt file included.
 
 #include <memory>
+#include <fmt/format.h>
 
+#include "core/hle/ipc_helpers.h"
+#include "core/hle/kernel/process.h"
 #include "core/hle/service/ldr/ldr.h"
 #include "core/hle/service/service.h"
+#include "core/loader/nro.h"
 
 namespace Service::LDR {
 
@@ -59,16 +63,58 @@ public:
     explicit RelocatableObject() : ServiceFramework{"ldr:ro"} {
         // clang-format off
         static const FunctionInfo functions[] = {
-            {0, nullptr, "LoadNro"},
+            {0, &RelocatableObject::LoadNro, "LoadNro"},
             {1, nullptr, "UnloadNro"},
-            {2, nullptr, "LoadNrr"},
+            {2, &RelocatableObject::LoadNrr, "LoadNrr"},
             {3, nullptr, "UnloadNrr"},
-            {4, nullptr, "Initialize"},
+            {4, &RelocatableObject::Initialize, "Initialize"},
         };
         // clang-format on
 
         RegisterHandlers(functions);
     }
+
+    void LoadNrr(Kernel::HLERequestContext& ctx) {
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(RESULT_SUCCESS);
+        LOG_WARNING(Service_LDR, "(STUBBED) called");
+    }
+
+    void LoadNro(Kernel::HLERequestContext& ctx) {
+        IPC::RequestParser rp{ctx};
+        rp.Skip(2, false);
+        const VAddr nro_addr{rp.Pop<VAddr>()};
+        const u64 nro_size{rp.Pop<u64>()};
+        const VAddr bss_addr{rp.Pop<VAddr>()};
+        const u64 bss_size{rp.Pop<u64>()};
+
+        // Read NRO data from memory
+        std::vector<u8> nro_data(nro_size);
+        Memory::ReadBlock(nro_addr, nro_data.data(), nro_size);
+
+        // Load NRO as new executable module
+        const VAddr addr{*Core::CurrentProcess()->VMManager().FindFreeRegion(nro_size + bss_size)};
+        Loader::AppLoader_NRO::LoadNro(nro_data, fmt::format("nro-{:08x}", addr), addr);
+
+        // TODO(bunnei): This is an incomplete implementation. It was tested with Super Mario Party.
+        // It is currently missing:
+        // - Signature checks with LoadNRR
+        // - Checking if a module has already been loaded
+        // - Using/validating BSS, etc. params (these are used from NRO header instead)
+        // - Error checking
+        // - ...Probably other things
+
+        IPC::ResponseBuilder rb{ctx, 4};
+        rb.Push(RESULT_SUCCESS);
+        rb.Push(addr);
+        LOG_WARNING(Service_LDR, "(STUBBED) called");
+    }
+
+    void Initialize(Kernel::HLERequestContext& ctx) {
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(RESULT_SUCCESS);
+        LOG_WARNING(Service_LDR, "(STUBBED) called");
+    }
 };
 
 void InstallInterfaces(SM::ServiceManager& sm) {
diff --git a/src/core/hle/service/usb/usb.cpp b/src/core/hle/service/usb/usb.cpp
index e7fb5a419..c489da071 100644
--- a/src/core/hle/service/usb/usb.cpp
+++ b/src/core/hle/service/usb/usb.cpp
@@ -67,15 +67,15 @@ public:
     explicit IClientEpSession() : ServiceFramework{"IClientEpSession"} {
         // clang-format off
         static const FunctionInfo functions[] = {
-            {0, nullptr, "Unknown1"},
-            {1, nullptr, "Unknown2"},
-            {2, nullptr, "Unknown3"},
-            {3, nullptr, "Unknown4"},
+            {0, nullptr, "Open"},
+            {1, nullptr, "Close"},
+            {2, nullptr, "Unknown1"},
+            {3, nullptr, "Populate"},
             {4, nullptr, "PostBufferAsync"},
-            {5, nullptr, "Unknown5"},
-            {6, nullptr, "Unknown6"},
-            {7, nullptr, "Unknown7"},
-            {8, nullptr, "Unknown8"},
+            {5, nullptr, "GetXferReport"},
+            {6, nullptr, "Unknown2"},
+            {7, nullptr, "Unknown3"},
+            {8, nullptr, "Unknown4"},
         };
         // clang-format on
 
@@ -89,15 +89,15 @@ public:
         // clang-format off
         static const FunctionInfo functions[] = {
             {0, nullptr, "Unknown1"},
-            {1, nullptr, "Unknown2"},
-            {2, nullptr, "Unknown3"},
-            {3, nullptr, "Unknown4"},
-            {4, nullptr, "Unknown5"},
+            {1, nullptr, "SetInterface"},
+            {2, nullptr, "GetInterface"},
+            {3, nullptr, "GetAlternateInterface"},
+            {4, nullptr, "GetCurrentFrame"},
             {5, nullptr, "CtrlXferAsync"},
-            {6, nullptr, "Unknown6"},
+            {6, nullptr, "Unknown2"},
             {7, nullptr, "GetCtrlXferReport"},
-            {8, nullptr, "Unknown7"},
-            {9, nullptr, "GetClientEpSession"},
+            {8, nullptr, "ResetDevice"},
+            {9, nullptr, "OpenUsbEp"},
         };
         // clang-format on
 
@@ -111,13 +111,14 @@ public:
         // clang-format off
         static const FunctionInfo functions[] = {
             {0, nullptr, "BindClientProcess"},
-            {1, nullptr, "Unknown1"},
-            {2, nullptr, "Unknown2"},
-            {3, nullptr, "Unknown3"},
-            {4, nullptr, "Unknown4"},
-            {5, nullptr, "Unknown5"},
+            {1, nullptr, "QueryAllInterfaces"},
+            {2, nullptr, "QueryAvailableInterfaces"},
+            {3, nullptr, "QueryAcquiredInterfaces"},
+            {4, nullptr, "CreateInterfaceAvailableEvent"},
+            {5, nullptr, "DestroyInterfaceAvailableEvent"},
             {6, nullptr, "GetInterfaceStateChangeEvent"},
-            {7, nullptr, "GetClientIfSession"},
+            {7, nullptr, "AcquireUsbIf"},
+            {8, nullptr, "Unknown1"},
         };
         // clang-format on
 
diff --git a/src/core/loader/nro.cpp b/src/core/loader/nro.cpp
index 243b499f2..bc8e402a8 100644
--- a/src/core/loader/nro.cpp
+++ b/src/core/loader/nro.cpp
@@ -127,18 +127,23 @@ static constexpr u32 PageAlignSize(u32 size) {
     return (size + Memory::PAGE_MASK) & ~Memory::PAGE_MASK;
 }
 
-bool AppLoader_NRO::LoadNro(const FileSys::VfsFile& file, VAddr load_base) {
-    // Read NSO header
-    NroHeader nro_header{};
-    if (sizeof(NroHeader) != file.ReadObject(&nro_header)) {
+/*static*/ bool AppLoader_NRO::LoadNro(const std::vector<u8>& data, const std::string& name,
+                                       VAddr load_base) {
+
+    if (data.size() < sizeof(NroHeader)) {
         return {};
     }
+
+    // Read NSO header
+    NroHeader nro_header{};
+    std::memcpy(&nro_header, data.data(), sizeof(NroHeader));
     if (nro_header.magic != Common::MakeMagic('N', 'R', 'O', '0')) {
         return {};
     }
 
     // Build program image
-    std::vector<u8> program_image = file.ReadBytes(PageAlignSize(nro_header.file_size));
+    std::vector<u8> program_image(PageAlignSize(nro_header.file_size));
+    std::memcpy(program_image.data(), data.data(), program_image.size());
     if (program_image.size() != PageAlignSize(nro_header.file_size)) {
         return {};
     }
@@ -182,11 +187,15 @@ bool AppLoader_NRO::LoadNro(const FileSys::VfsFile& file, VAddr load_base) {
     Core::CurrentProcess()->LoadModule(std::move(codeset), load_base);
 
     // Register module with GDBStub
-    GDBStub::RegisterModule(file.GetName(), load_base, load_base);
+    GDBStub::RegisterModule(name, load_base, load_base);
 
     return true;
 }
 
+bool AppLoader_NRO::LoadNro(const FileSys::VfsFile& file, VAddr load_base) {
+    return AppLoader_NRO::LoadNro(file.ReadAllBytes(), file.GetName(), load_base);
+}
+
 ResultStatus AppLoader_NRO::Load(Kernel::Process& process) {
     if (is_loaded) {
         return ResultStatus::ErrorAlreadyLoaded;
diff --git a/src/core/loader/nro.h b/src/core/loader/nro.h
index 50ee5a78a..3e6959302 100644
--- a/src/core/loader/nro.h
+++ b/src/core/loader/nro.h
@@ -5,6 +5,7 @@
 #pragma once
 
 #include <string>
+#include <vector>
 #include "common/common_types.h"
 #include "core/loader/linker.h"
 #include "core/loader/loader.h"
@@ -40,6 +41,8 @@ public:
     ResultStatus ReadTitle(std::string& title) override;
     bool IsRomFSUpdatable() const override;
 
+    static bool LoadNro(const std::vector<u8>& data, const std::string& name, VAddr load_base);
+
 private:
     bool LoadNro(const FileSys::VfsFile& file, VAddr load_base);
 
diff --git a/src/core/perf_stats.cpp b/src/core/perf_stats.cpp
index 7d95816fe..c716a462b 100644
--- a/src/core/perf_stats.cpp
+++ b/src/core/perf_stats.cpp
@@ -74,10 +74,6 @@ double PerfStats::GetLastFrameTimeScale() {
 }
 
 void FrameLimiter::DoFrameLimiting(microseconds current_system_time_us) {
-    // Max lag caused by slow frames. Can be adjusted to compensate for too many slow frames. Higher
-    // values increase the time needed to recover and limit framerate again after spikes.
-    constexpr microseconds MAX_LAG_TIME_US = 25000us;
-
     if (!Settings::values.use_frame_limit) {
         return;
     }
diff --git a/src/core/settings.h b/src/core/settings.h
index ca80718e2..b5aeff29b 100644
--- a/src/core/settings.h
+++ b/src/core/settings.h
@@ -114,7 +114,7 @@ struct Values {
     // System
     bool use_docked_mode;
     bool enable_nfc;
-    std::string username;
+    int current_user;
     int language_index;
 
     // Controls
diff --git a/src/video_core/engines/maxwell_3d.cpp b/src/video_core/engines/maxwell_3d.cpp
index bca014a4a..78ba29fc1 100644
--- a/src/video_core/engines/maxwell_3d.cpp
+++ b/src/video_core/engines/maxwell_3d.cpp
@@ -155,7 +155,6 @@ void Maxwell3D::ProcessQueryGet() {
     ASSERT_MSG(regs.query.query_get.unit == Regs::QueryUnit::Crop,
                "Units other than CROP are unimplemented");
 
-    u32 value = Memory::Read32(*address);
     u64 result = 0;
 
     // TODO(Subv): Support the other query variables
diff --git a/src/video_core/engines/shader_bytecode.h b/src/video_core/engines/shader_bytecode.h
index 6cd08d28b..af7756266 100644
--- a/src/video_core/engines/shader_bytecode.h
+++ b/src/video_core/engines/shader_bytecode.h
@@ -79,6 +79,7 @@ union Attribute {
     constexpr explicit Attribute(u64 value) : value(value) {}
 
     enum class Index : u64 {
+        PointSize = 6,
         Position = 7,
         Attribute_0 = 8,
         Attribute_31 = 39,
diff --git a/src/video_core/renderer_opengl/gl_rasterizer_cache.cpp b/src/video_core/renderer_opengl/gl_rasterizer_cache.cpp
index 9c8925383..591ec7998 100644
--- a/src/video_core/renderer_opengl/gl_rasterizer_cache.cpp
+++ b/src/video_core/renderer_opengl/gl_rasterizer_cache.cpp
@@ -78,6 +78,29 @@ void SurfaceParams::InitCacheParameters(Tegra::GPUVAddr gpu_addr_) {
     }
 }
 
+std::size_t SurfaceParams::InnerMemorySize(bool layer_only) const {
+    const u32 compression_factor{GetCompressionFactor(pixel_format)};
+    const u32 bytes_per_pixel{GetBytesPerPixel(pixel_format)};
+    u32 m_depth = (layer_only ? 1U : depth);
+    u32 m_width = std::max(1U, width / compression_factor);
+    u32 m_height = std::max(1U, height / compression_factor);
+    std::size_t size = Tegra::Texture::CalculateSize(is_tiled, bytes_per_pixel, m_width, m_height,
+                                                     m_depth, block_height, block_depth);
+    u32 m_block_height = block_height;
+    u32 m_block_depth = block_depth;
+    std::size_t block_size_bytes = 512 * block_height * block_depth; // 512 is GOB size
+    for (u32 i = 1; i < max_mip_level; i++) {
+        m_width = std::max(1U, m_width / 2);
+        m_height = std::max(1U, m_height / 2);
+        m_depth = std::max(1U, m_depth / 2);
+        m_block_height = std::max(1U, m_block_height / 2);
+        m_block_depth = std::max(1U, m_block_depth / 2);
+        size += Tegra::Texture::CalculateSize(is_tiled, bytes_per_pixel, m_width, m_height, m_depth,
+                                              m_block_height, m_block_depth);
+    }
+    return is_tiled ? Common::AlignUp(size, block_size_bytes) : size;
+}
+
 /*static*/ SurfaceParams SurfaceParams::CreateForTexture(
     const Tegra::Texture::FullTextureInfo& config, const GLShader::SamplerEntry& entry) {
     SurfaceParams params{};
@@ -124,6 +147,7 @@ void SurfaceParams::InitCacheParameters(Tegra::GPUVAddr gpu_addr_) {
         break;
     }
 
+    params.is_layered = SurfaceTargetIsLayered(params.target);
     params.max_mip_level = config.tic.max_mip_level + 1;
     params.rt = {};
 
@@ -150,6 +174,7 @@ void SurfaceParams::InitCacheParameters(Tegra::GPUVAddr gpu_addr_) {
     params.target = SurfaceTarget::Texture2D;
     params.depth = 1;
     params.max_mip_level = 0;
+    params.is_layered = false;
 
     // Render target specific parameters, not used for caching
     params.rt.index = static_cast<u32>(index);
@@ -182,6 +207,7 @@ void SurfaceParams::InitCacheParameters(Tegra::GPUVAddr gpu_addr_) {
     params.target = SurfaceTarget::Texture2D;
     params.depth = 1;
     params.max_mip_level = 0;
+    params.is_layered = false;
     params.rt = {};
 
     params.InitCacheParameters(zeta_address);
@@ -361,10 +387,11 @@ void MortonCopy(u32 stride, u32 block_height, u32 height, u32 block_depth, u32 d
     }
 }
 
-static constexpr std::array<void (*)(u32, u32, u32, u32, u32, u8*, std::size_t, VAddr),
-                            SurfaceParams::MaxPixelFormat>
-    morton_to_gl_fns = {
-        // clang-format off
+using GLConversionArray = std::array<void (*)(u32, u32, u32, u32, u32, u8*, std::size_t, VAddr),
+                                     SurfaceParams::MaxPixelFormat>;
+
+static constexpr GLConversionArray morton_to_gl_fns = {
+    // clang-format off
         MortonCopy<true, PixelFormat::ABGR8U>,
         MortonCopy<true, PixelFormat::ABGR8S>,
         MortonCopy<true, PixelFormat::ABGR8UI>,
@@ -418,13 +445,11 @@ static constexpr std::array<void (*)(u32, u32, u32, u32, u32, u8*, std::size_t,
         MortonCopy<true, PixelFormat::Z24S8>,
         MortonCopy<true, PixelFormat::S8Z24>,
         MortonCopy<true, PixelFormat::Z32FS8>,
-        // clang-format on
+    // clang-format on
 };
 
-static constexpr std::array<void (*)(u32, u32, u32, u32, u32, u8*, std::size_t, VAddr),
-                            SurfaceParams::MaxPixelFormat>
-    gl_to_morton_fns = {
-        // clang-format off
+static constexpr GLConversionArray gl_to_morton_fns = {
+    // clang-format off
         MortonCopy<false, PixelFormat::ABGR8U>,
         MortonCopy<false, PixelFormat::ABGR8S>,
         MortonCopy<false, PixelFormat::ABGR8UI>,
@@ -479,9 +504,35 @@ static constexpr std::array<void (*)(u32, u32, u32, u32, u32, u8*, std::size_t,
         MortonCopy<false, PixelFormat::Z24S8>,
         MortonCopy<false, PixelFormat::S8Z24>,
         MortonCopy<false, PixelFormat::Z32FS8>,
-        // clang-format on
+    // clang-format on
 };
 
+void SwizzleFunc(const GLConversionArray& functions, const SurfaceParams& params,
+                 std::vector<u8>& gl_buffer) {
+    u32 depth = params.depth;
+    if (params.target == SurfaceParams::SurfaceTarget::Texture2D) {
+        // TODO(Blinkhawk): Eliminate this condition once all texture types are implemented.
+        depth = 1U;
+    }
+    if (params.is_layered) {
+        u64 offset = 0;
+        u64 offset_gl = 0;
+        u64 layer_size = params.LayerMemorySize();
+        u64 gl_size = params.LayerSizeGL();
+        for (u32 i = 0; i < depth; i++) {
+            functions[static_cast<std::size_t>(params.pixel_format)](
+                params.width, params.block_height, params.height, params.block_depth, 1,
+                gl_buffer.data() + offset_gl, gl_size, params.addr + offset);
+            offset += layer_size;
+            offset_gl += gl_size;
+        }
+    } else {
+        functions[static_cast<std::size_t>(params.pixel_format)](
+            params.width, params.block_height, params.height, params.block_depth, depth,
+            gl_buffer.data(), gl_buffer.size(), params.addr);
+    }
+}
+
 static bool BlitSurface(const Surface& src_surface, const Surface& dst_surface,
                         GLuint read_fb_handle, GLuint draw_fb_handle, GLenum src_attachment = 0,
                         GLenum dst_attachment = 0, std::size_t cubemap_face = 0) {
@@ -881,21 +932,10 @@ void CachedSurface::LoadGLBuffer() {
 
     gl_buffer.resize(params.size_in_bytes_gl);
     if (params.is_tiled) {
-        u32 depth = params.depth;
-        u32 block_depth = params.block_depth;
-
         ASSERT_MSG(params.block_width == 1, "Block width is defined as {} on texture type {}",
                    params.block_width, static_cast<u32>(params.target));
 
-        if (params.target == SurfaceParams::SurfaceTarget::Texture2D) {
-            // TODO(Blinkhawk): Eliminate this condition once all texture types are implemented.
-            depth = 1U;
-            block_depth = 1U;
-        }
-
-        morton_to_gl_fns[static_cast<std::size_t>(params.pixel_format)](
-            params.width, params.block_height, params.height, block_depth, depth, gl_buffer.data(),
-            gl_buffer.size(), params.addr);
+        SwizzleFunc(morton_to_gl_fns, params, gl_buffer);
     } else {
         const auto texture_src_data{Memory::GetPointer(params.addr)};
         const auto texture_src_data_end{texture_src_data + params.size_in_bytes_gl};
@@ -929,19 +969,10 @@ void CachedSurface::FlushGLBuffer() {
     const u8* const texture_src_data = Memory::GetPointer(params.addr);
     ASSERT(texture_src_data);
     if (params.is_tiled) {
-        u32 depth = params.depth;
-        u32 block_depth = params.block_depth;
-
         ASSERT_MSG(params.block_width == 1, "Block width is defined as {} on texture type {}",
                    params.block_width, static_cast<u32>(params.target));
 
-        if (params.target == SurfaceParams::SurfaceTarget::Texture2D) {
-            // TODO(Blinkhawk): Eliminate this condition once all texture types are implemented.
-            depth = 1U;
-        }
-        gl_to_morton_fns[static_cast<size_t>(params.pixel_format)](
-            params.width, params.block_height, params.height, block_depth, depth, gl_buffer.data(),
-            gl_buffer.size(), GetAddr());
+        SwizzleFunc(gl_to_morton_fns, params, gl_buffer);
     } else {
         std::memcpy(Memory::GetPointer(GetAddr()), gl_buffer.data(), GetSizeInBytes());
     }
@@ -1179,7 +1210,7 @@ void RasterizerCacheOpenGL::AccurateCopySurface(const Surface& src_surface,
                                                 const Surface& dst_surface) {
     const auto& src_params{src_surface->GetSurfaceParams()};
     const auto& dst_params{dst_surface->GetSurfaceParams()};
-    FlushRegion(src_params.addr, dst_params.size_in_bytes);
+    FlushRegion(src_params.addr, dst_params.MemorySize());
     LoadSurface(dst_surface);
 }
 
@@ -1221,44 +1252,10 @@ Surface RasterizerCacheOpenGL::RecreateSurface(const Surface& old_surface,
             CopySurface(old_surface, new_surface, copy_pbo.handle);
         }
         break;
+    case SurfaceParams::SurfaceTarget::TextureCubemap:
     case SurfaceParams::SurfaceTarget::Texture3D:
         AccurateCopySurface(old_surface, new_surface);
         break;
-    case SurfaceParams::SurfaceTarget::TextureCubemap: {
-        if (old_params.rt.array_mode != 1) {
-            // TODO(bunnei): This is used by Breath of the Wild, I'm not sure how to implement this
-            // yet (array rendering used as a cubemap texture).
-            LOG_CRITICAL(HW_GPU, "Unhandled rendertarget array_mode {}", old_params.rt.array_mode);
-            UNREACHABLE();
-            return new_surface;
-        }
-
-        // This seems to be used for render-to-cubemap texture
-        ASSERT_MSG(old_params.target == SurfaceParams::SurfaceTarget::Texture2D, "Unexpected");
-        ASSERT_MSG(old_params.pixel_format == new_params.pixel_format, "Unexpected");
-        ASSERT_MSG(old_params.rt.base_layer == 0, "Unimplemented");
-
-        // TODO(bunnei): Verify the below - this stride seems to be in 32-bit words, not pixels.
-        // Tested with Splatoon 2, Super Mario Odyssey, and Breath of the Wild.
-        const std::size_t byte_stride{old_params.rt.layer_stride * sizeof(u32)};
-
-        for (std::size_t index = 0; index < new_params.depth; ++index) {
-            Surface face_surface{TryGetReservedSurface(old_params)};
-            ASSERT_MSG(face_surface, "Unexpected");
-
-            if (is_blit) {
-                BlitSurface(face_surface, new_surface, read_framebuffer.handle,
-                            draw_framebuffer.handle, face_surface->GetSurfaceParams().rt.index,
-                            new_params.rt.index, index);
-            } else {
-                CopySurface(face_surface, new_surface, copy_pbo.handle,
-                            face_surface->GetSurfaceParams().rt.index, new_params.rt.index, index);
-            }
-
-            old_params.addr += byte_stride;
-        }
-        break;
-    }
     default:
         LOG_CRITICAL(Render_OpenGL, "Unimplemented surface target={}",
                      static_cast<u32>(new_params.target));
@@ -1266,7 +1263,7 @@ Surface RasterizerCacheOpenGL::RecreateSurface(const Surface& old_surface,
     }
 
     return new_surface;
-}
+} // namespace OpenGL
 
 Surface RasterizerCacheOpenGL::TryFindFramebufferSurface(VAddr addr) const {
     return TryGet(addr);
diff --git a/src/video_core/renderer_opengl/gl_rasterizer_cache.h b/src/video_core/renderer_opengl/gl_rasterizer_cache.h
index 0dd0d90a3..50a7ab47d 100644
--- a/src/video_core/renderer_opengl/gl_rasterizer_cache.h
+++ b/src/video_core/renderer_opengl/gl_rasterizer_cache.h
@@ -168,6 +168,23 @@ struct SurfaceParams {
         }
     }
 
+    static bool SurfaceTargetIsLayered(SurfaceTarget target) {
+        switch (target) {
+        case SurfaceTarget::Texture1D:
+        case SurfaceTarget::Texture2D:
+        case SurfaceTarget::Texture3D:
+            return false;
+        case SurfaceTarget::Texture1DArray:
+        case SurfaceTarget::Texture2DArray:
+        case SurfaceTarget::TextureCubemap:
+            return true;
+        default:
+            LOG_CRITICAL(HW_GPU, "Unimplemented surface_target={}", static_cast<u32>(target));
+            UNREACHABLE();
+            return false;
+        }
+    }
+
     /**
      * Gets the compression factor for the specified PixelFormat. This applies to just the
      * "compressed width" and "compressed height", not the overall compression factor of a
@@ -742,6 +759,25 @@ struct SurfaceParams {
         return size_in_bytes_gl / 6;
     }
 
+    /// Returns the exact size of memory occupied by the texture in VRAM, including mipmaps.
+    std::size_t MemorySize() const {
+        std::size_t size = InnerMemorySize(is_layered);
+        if (is_layered)
+            return size * depth;
+        return size;
+    }
+
+    /// Returns the exact size of the memory occupied by a layer in a texture in VRAM, including
+    /// mipmaps.
+    std::size_t LayerMemorySize() const {
+        return InnerMemorySize(true);
+    }
+
+    /// Returns the size of a layer of this surface in OpenGL.
+    std::size_t LayerSizeGL() const {
+        return SizeInBytesRaw(true) / depth;
+    }
+
     /// Creates SurfaceParams from a texture configuration
     static SurfaceParams CreateForTexture(const Tegra::Texture::FullTextureInfo& config,
                                           const GLShader::SamplerEntry& entry);
@@ -782,6 +818,7 @@ struct SurfaceParams {
     u32 unaligned_height;
     SurfaceTarget target;
     u32 max_mip_level;
+    bool is_layered;
 
     // Parameters used for caching
     VAddr addr;
@@ -797,6 +834,9 @@ struct SurfaceParams {
         u32 layer_stride;
         u32 base_layer;
     } rt;
+
+private:
+    std::size_t InnerMemorySize(bool layer_only = false) const;
 };
 
 }; // namespace OpenGL
diff --git a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
index fe4d1bd83..81ffb24e4 100644
--- a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
+++ b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
@@ -6,6 +6,7 @@
 #include <set>
 #include <string>
 #include <string_view>
+#include <unordered_set>
 
 #include <boost/optional.hpp>
 #include <fmt/format.h>
@@ -276,7 +277,8 @@ public:
     GLSLRegisterManager(ShaderWriter& shader, ShaderWriter& declarations,
                         const Maxwell3D::Regs::ShaderStage& stage, const std::string& suffix,
                         const Tegra::Shader::Header& header)
-        : shader{shader}, declarations{declarations}, stage{stage}, suffix{suffix}, header{header} {
+        : shader{shader}, declarations{declarations}, stage{stage}, suffix{suffix}, header{header},
+          fixed_pipeline_output_attributes_used{} {
         BuildRegisterList();
         BuildInputList();
     }
@@ -480,7 +482,12 @@ public:
                                std::to_string(static_cast<u32>(attribute)) + ']' +
                                GetSwizzle(elem) + " = " + src + ';');
             } else {
-                shader.AddLine(dest + GetSwizzle(elem) + " = " + src + ';');
+                if (attribute == Attribute::Index::PointSize) {
+                    fixed_pipeline_output_attributes_used.insert(attribute);
+                    shader.AddLine(dest + " = " + src + ';');
+                } else {
+                    shader.AddLine(dest + GetSwizzle(elem) + " = " + src + ';');
+                }
             }
         }
     }
@@ -524,6 +531,7 @@ public:
 
     /// Add declarations.
     void GenerateDeclarations(const std::string& suffix) {
+        GenerateVertex();
         GenerateRegisters(suffix);
         GenerateInternalFlags();
         GenerateInputAttrs();
@@ -683,6 +691,20 @@ private:
         declarations.AddNewLine();
     }
 
+    void GenerateVertex() {
+        if (stage != Maxwell3D::Regs::ShaderStage::Vertex)
+            return;
+        declarations.AddLine("out gl_PerVertex {");
+        ++declarations.scope;
+        declarations.AddLine("vec4 gl_Position;");
+        for (auto& o : fixed_pipeline_output_attributes_used) {
+            if (o == Attribute::Index::PointSize)
+                declarations.AddLine("float gl_PointSize;");
+        }
+        --declarations.scope;
+        declarations.AddLine("};");
+    }
+
     /// Generates code representing a temporary (GPR) register.
     std::string GetRegister(const Register& reg, unsigned elem) {
         if (reg == Register::ZeroIndex) {
@@ -836,6 +858,8 @@ private:
     /// Generates code representing the declaration name of an output attribute register.
     std::string GetOutputAttribute(Attribute::Index attribute) {
         switch (attribute) {
+        case Attribute::Index::PointSize:
+            return "gl_PointSize";
         case Attribute::Index::Position:
             return "position";
         default:
@@ -870,6 +894,7 @@ private:
     const Maxwell3D::Regs::ShaderStage& stage;
     const std::string& suffix;
     const Tegra::Shader::Header& header;
+    std::unordered_set<Attribute::Index> fixed_pipeline_output_attributes_used;
 };
 
 class GLSLGenerator {
diff --git a/src/video_core/renderer_opengl/gl_shader_gen.cpp b/src/video_core/renderer_opengl/gl_shader_gen.cpp
index e883ffb1d..dfb562706 100644
--- a/src/video_core/renderer_opengl/gl_shader_gen.cpp
+++ b/src/video_core/renderer_opengl/gl_shader_gen.cpp
@@ -19,9 +19,6 @@ ProgramResult GenerateVertexShader(const ShaderSetup& setup) {
     out += Decompiler::GetCommonDeclarations();
 
     out += R"(
-out gl_PerVertex {
-    vec4 gl_Position;
-};
 
 layout (location = 0) out vec4 position;
 
diff --git a/src/video_core/textures/decoders.cpp b/src/video_core/textures/decoders.cpp
index f1b40e7f5..550ca856c 100644
--- a/src/video_core/textures/decoders.cpp
+++ b/src/video_core/textures/decoders.cpp
@@ -142,7 +142,6 @@ void SwizzledData(u8* swizzled_data, u8* unswizzled_data, const bool unswizzle,
     const u32 blocks_on_x = div_ceil(width, block_x_elements);
     const u32 blocks_on_y = div_ceil(height, block_y_elements);
     const u32 blocks_on_z = div_ceil(depth, block_z_elements);
-    const u32 blocks = blocks_on_x * blocks_on_y * blocks_on_z;
     const u32 gob_size = gob_x_bytes * gob_elements_y * gob_elements_z;
     const u32 xy_block_size = gob_size * block_height;
     const u32 block_size = xy_block_size * block_depth;
@@ -320,13 +319,13 @@ std::vector<u8> DecodeTexture(const std::vector<u8>& texture_data, TextureFormat
 std::size_t CalculateSize(bool tiled, u32 bytes_per_pixel, u32 width, u32 height, u32 depth,
                           u32 block_height, u32 block_depth) {
     if (tiled) {
-        const u32 gobs_in_x = 64 / bytes_per_pixel;
+        const u32 gobs_in_x = 64;
         const u32 gobs_in_y = 8;
         const u32 gobs_in_z = 1;
-        const u32 aligned_width = Common::AlignUp(width, gobs_in_x);
+        const u32 aligned_width = Common::AlignUp(width * bytes_per_pixel, gobs_in_x);
         const u32 aligned_height = Common::AlignUp(height, gobs_in_y * block_height);
         const u32 aligned_depth = Common::AlignUp(depth, gobs_in_z * block_depth);
-        return aligned_width * aligned_height * aligned_depth * bytes_per_pixel;
+        return aligned_width * aligned_height * aligned_depth;
     } else {
         return width * height * depth * bytes_per_pixel;
     }
diff --git a/src/yuzu/bootmanager.cpp b/src/yuzu/bootmanager.cpp
index e8ab23326..39eef8858 100644
--- a/src/yuzu/bootmanager.cpp
+++ b/src/yuzu/bootmanager.cpp
@@ -8,7 +8,6 @@
 
 #include "common/microprofile.h"
 #include "common/scm_rev.h"
-#include "common/string_util.h"
 #include "core/core.h"
 #include "core/frontend/framebuffer_layout.h"
 #include "core/settings.h"
@@ -107,9 +106,8 @@ private:
 GRenderWindow::GRenderWindow(QWidget* parent, EmuThread* emu_thread)
     : QWidget(parent), child(nullptr), emu_thread(emu_thread) {
 
-    std::string window_title = fmt::format("yuzu {} | {}-{}", Common::g_build_name,
-                                           Common::g_scm_branch, Common::g_scm_desc);
-    setWindowTitle(QString::fromStdString(window_title));
+    setWindowTitle(QStringLiteral("yuzu %1 | %2-%3")
+                       .arg(Common::g_build_name, Common::g_scm_branch, Common::g_scm_desc));
     setAttribute(Qt::WA_AcceptTouchEvents);
 
     InputCommon::Init();
diff --git a/src/yuzu/configuration/config.cpp b/src/yuzu/configuration/config.cpp
index d029590ff..d4fd60a73 100644
--- a/src/yuzu/configuration/config.cpp
+++ b/src/yuzu/configuration/config.cpp
@@ -4,6 +4,7 @@
 
 #include <QSettings>
 #include "common/file_util.h"
+#include "core/hle/service/acc/profile_manager.h"
 #include "input_common/main.h"
 #include "yuzu/configuration/config.h"
 #include "yuzu/ui_settings.h"
@@ -12,11 +13,16 @@ Config::Config() {
     // TODO: Don't hardcode the path; let the frontend decide where to put the config files.
     qt_config_loc = FileUtil::GetUserPath(FileUtil::UserPath::ConfigDir) + "qt-config.ini";
     FileUtil::CreateFullPath(qt_config_loc);
-    qt_config = new QSettings(QString::fromStdString(qt_config_loc), QSettings::IniFormat);
+    qt_config =
+        std::make_unique<QSettings>(QString::fromStdString(qt_config_loc), QSettings::IniFormat);
 
     Reload();
 }
 
+Config::~Config() {
+    Save();
+}
+
 const std::array<int, Settings::NativeButton::NumButtons> Config::default_buttons = {
     Qt::Key_A, Qt::Key_S, Qt::Key_Z,    Qt::Key_X,  Qt::Key_3,     Qt::Key_4,    Qt::Key_Q,
     Qt::Key_W, Qt::Key_1, Qt::Key_2,    Qt::Key_N,  Qt::Key_M,     Qt::Key_F,    Qt::Key_T,
@@ -123,7 +129,10 @@ void Config::ReadValues() {
     qt_config->beginGroup("System");
     Settings::values.use_docked_mode = qt_config->value("use_docked_mode", false).toBool();
     Settings::values.enable_nfc = qt_config->value("enable_nfc", true).toBool();
-    Settings::values.username = qt_config->value("username", "yuzu").toString().toStdString();
+
+    Settings::values.current_user = std::clamp<int>(qt_config->value("current_user", 0).toInt(), 0,
+                                                    Service::Account::MAX_USERS - 1);
+
     Settings::values.language_index = qt_config->value("language_index", 1).toInt();
     qt_config->endGroup();
 
@@ -260,7 +269,8 @@ void Config::SaveValues() {
     qt_config->beginGroup("System");
     qt_config->setValue("use_docked_mode", Settings::values.use_docked_mode);
     qt_config->setValue("enable_nfc", Settings::values.enable_nfc);
-    qt_config->setValue("username", QString::fromStdString(Settings::values.username));
+    qt_config->setValue("current_user", Settings::values.current_user);
+
     qt_config->setValue("language_index", Settings::values.language_index);
     qt_config->endGroup();
 
@@ -337,9 +347,3 @@ void Config::Reload() {
 void Config::Save() {
     SaveValues();
 }
-
-Config::~Config() {
-    Save();
-
-    delete qt_config;
-}
diff --git a/src/yuzu/configuration/config.h b/src/yuzu/configuration/config.h
index cbf745ea2..9c99c1b75 100644
--- a/src/yuzu/configuration/config.h
+++ b/src/yuzu/configuration/config.h
@@ -5,6 +5,7 @@
 #pragma once
 
 #include <array>
+#include <memory>
 #include <string>
 #include <QVariant>
 #include "core/settings.h"
@@ -12,12 +13,6 @@
 class QSettings;
 
 class Config {
-    QSettings* qt_config;
-    std::string qt_config_loc;
-
-    void ReadValues();
-    void SaveValues();
-
 public:
     Config();
     ~Config();
@@ -27,4 +22,11 @@ public:
 
     static const std::array<int, Settings::NativeButton::NumButtons> default_buttons;
     static const std::array<std::array<int, 5>, Settings::NativeAnalog::NumAnalogs> default_analogs;
+
+private:
+    void ReadValues();
+    void SaveValues();
+
+    std::unique_ptr<QSettings> qt_config;
+    std::string qt_config_loc;
 };
diff --git a/src/yuzu/configuration/configure_system.cpp b/src/yuzu/configuration/configure_system.cpp
index e9ed9c38f..20ffb0a9a 100644
--- a/src/yuzu/configuration/configure_system.cpp
+++ b/src/yuzu/configuration/configure_system.cpp
@@ -2,14 +2,27 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
+#include <algorithm>
+#include <QFileDialog>
+#include <QGraphicsItem>
+#include <QGraphicsScene>
+#include <QInputDialog>
 #include <QMessageBox>
+#include <QStandardItemModel>
+#include <QTreeView>
+#include <QVBoxLayout>
+#include "common/common_paths.h"
+#include "common/logging/backend.h"
+#include "common/string_util.h"
 #include "core/core.h"
+#include "core/hle/service/acc/profile_manager.h"
 #include "core/settings.h"
 #include "ui_configure_system.h"
 #include "yuzu/configuration/configure_system.h"
 #include "yuzu/main.h"
 
-static const std::array<int, 12> days_in_month = {{
+namespace {
+constexpr std::array<int, 12> days_in_month = {{
     31,
     29,
     31,
@@ -24,13 +37,82 @@ static const std::array<int, 12> days_in_month = {{
     31,
 }};
 
-ConfigureSystem::ConfigureSystem(QWidget* parent) : QWidget(parent), ui(new Ui::ConfigureSystem) {
+// Same backup JPEG used by acc IProfile::GetImage if no jpeg found
+constexpr std::array<u8, 107> backup_jpeg{
+    0xff, 0xd8, 0xff, 0xdb, 0x00, 0x43, 0x00, 0x03, 0x02, 0x02, 0x02, 0x02, 0x02, 0x03, 0x02, 0x02,
+    0x02, 0x03, 0x03, 0x03, 0x03, 0x04, 0x06, 0x04, 0x04, 0x04, 0x04, 0x04, 0x08, 0x06, 0x06, 0x05,
+    0x06, 0x09, 0x08, 0x0a, 0x0a, 0x09, 0x08, 0x09, 0x09, 0x0a, 0x0c, 0x0f, 0x0c, 0x0a, 0x0b, 0x0e,
+    0x0b, 0x09, 0x09, 0x0d, 0x11, 0x0d, 0x0e, 0x0f, 0x10, 0x10, 0x11, 0x10, 0x0a, 0x0c, 0x12, 0x13,
+    0x12, 0x10, 0x13, 0x0f, 0x10, 0x10, 0x10, 0xff, 0xc9, 0x00, 0x0b, 0x08, 0x00, 0x01, 0x00, 0x01,
+    0x01, 0x01, 0x11, 0x00, 0xff, 0xcc, 0x00, 0x06, 0x00, 0x10, 0x10, 0x05, 0xff, 0xda, 0x00, 0x08,
+    0x01, 0x01, 0x00, 0x00, 0x3f, 0x00, 0xd2, 0xcf, 0x20, 0xff, 0xd9,
+};
+
+std::string GetImagePath(Service::Account::UUID uuid) {
+    return FileUtil::GetUserPath(FileUtil::UserPath::NANDDir) +
+           "/system/save/8000000000000010/su/avators/" + uuid.FormatSwitch() + ".jpg";
+}
+
+std::string GetAccountUsername(const Service::Account::ProfileManager& manager,
+                               Service::Account::UUID uuid) {
+    Service::Account::ProfileBase profile;
+    if (!manager.GetProfileBase(uuid, profile)) {
+        return "";
+    }
+
+    return Common::StringFromFixedZeroTerminatedBuffer(
+        reinterpret_cast<const char*>(profile.username.data()), profile.username.size());
+}
+} // Anonymous namespace
+
+ConfigureSystem::ConfigureSystem(QWidget* parent)
+    : QWidget(parent), ui(new Ui::ConfigureSystem),
+      profile_manager(std::make_unique<Service::Account::ProfileManager>()) {
     ui->setupUi(this);
     connect(ui->combo_birthmonth,
             static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), this,
-            &ConfigureSystem::updateBirthdayComboBox);
+            &ConfigureSystem::UpdateBirthdayComboBox);
     connect(ui->button_regenerate_console_id, &QPushButton::clicked, this,
-            &ConfigureSystem::refreshConsoleID);
+            &ConfigureSystem::RefreshConsoleID);
+
+    layout = new QVBoxLayout;
+    tree_view = new QTreeView;
+    item_model = new QStandardItemModel(tree_view);
+    tree_view->setModel(item_model);
+
+    tree_view->setAlternatingRowColors(true);
+    tree_view->setSelectionMode(QHeaderView::SingleSelection);
+    tree_view->setSelectionBehavior(QHeaderView::SelectRows);
+    tree_view->setVerticalScrollMode(QHeaderView::ScrollPerPixel);
+    tree_view->setHorizontalScrollMode(QHeaderView::ScrollPerPixel);
+    tree_view->setSortingEnabled(true);
+    tree_view->setEditTriggers(QHeaderView::NoEditTriggers);
+    tree_view->setUniformRowHeights(true);
+    tree_view->setIconSize({64, 64});
+    tree_view->setContextMenuPolicy(Qt::NoContextMenu);
+
+    item_model->insertColumns(0, 1);
+    item_model->setHeaderData(0, Qt::Horizontal, "Users");
+
+    // We must register all custom types with the Qt Automoc system so that we are able to use it
+    // with signals/slots. In this case, QList falls under the umbrells of custom types.
+    qRegisterMetaType<QList<QStandardItem*>>("QList<QStandardItem*>");
+
+    layout->setContentsMargins(0, 0, 0, 0);
+    layout->setSpacing(0);
+    layout->addWidget(tree_view);
+
+    ui->scrollArea->setLayout(layout);
+
+    connect(tree_view, &QTreeView::clicked, this, &ConfigureSystem::SelectUser);
+
+    connect(ui->pm_add, &QPushButton::pressed, this, &ConfigureSystem::AddUser);
+    connect(ui->pm_rename, &QPushButton::pressed, this, &ConfigureSystem::RenameUser);
+    connect(ui->pm_remove, &QPushButton::pressed, this, &ConfigureSystem::DeleteUser);
+    connect(ui->pm_set_image, &QPushButton::pressed, this, &ConfigureSystem::SetUserImage);
+
+    scene = new QGraphicsScene;
+    ui->current_user_icon->setScene(scene);
 
     this->setConfiguration();
 }
@@ -39,8 +121,58 @@ ConfigureSystem::~ConfigureSystem() = default;
 
 void ConfigureSystem::setConfiguration() {
     enabled = !Core::System::GetInstance().IsPoweredOn();
-    ui->edit_username->setText(QString::fromStdString(Settings::values.username));
+
     ui->combo_language->setCurrentIndex(Settings::values.language_index);
+
+    item_model->removeRows(0, item_model->rowCount());
+    list_items.clear();
+
+    PopulateUserList();
+    UpdateCurrentUser();
+}
+
+static QPixmap GetIcon(Service::Account::UUID uuid) {
+    const auto icon_url = QString::fromStdString(GetImagePath(uuid));
+    QPixmap icon{icon_url};
+
+    if (!icon) {
+        icon.fill(Qt::black);
+        icon.loadFromData(backup_jpeg.data(), backup_jpeg.size());
+    }
+
+    return icon;
+}
+
+void ConfigureSystem::PopulateUserList() {
+    const auto& profiles = profile_manager->GetAllUsers();
+    for (const auto& user : profiles) {
+        Service::Account::ProfileBase profile;
+        if (!profile_manager->GetProfileBase(user, profile))
+            continue;
+
+        const auto username = Common::StringFromFixedZeroTerminatedBuffer(
+            reinterpret_cast<const char*>(profile.username.data()), profile.username.size());
+
+        list_items.push_back(QList<QStandardItem*>{new QStandardItem{
+            GetIcon(user).scaled(64, 64, Qt::IgnoreAspectRatio, Qt::SmoothTransformation),
+            QString::fromStdString(username + '\n' + user.FormatSwitch())}});
+    }
+
+    for (const auto& item : list_items)
+        item_model->appendRow(item);
+}
+
+void ConfigureSystem::UpdateCurrentUser() {
+    ui->pm_add->setEnabled(profile_manager->GetUserCount() < Service::Account::MAX_USERS);
+
+    const auto& current_user = profile_manager->GetUser(Settings::values.current_user);
+    ASSERT(current_user != std::nullopt);
+    const auto username = GetAccountUsername(*profile_manager, *current_user);
+
+    scene->clear();
+    scene->addPixmap(
+        GetIcon(*current_user).scaled(48, 48, Qt::IgnoreAspectRatio, Qt::SmoothTransformation));
+    ui->current_user_username->setText(QString::fromStdString(username));
 }
 
 void ConfigureSystem::ReadSystemSettings() {}
@@ -48,12 +180,12 @@ void ConfigureSystem::ReadSystemSettings() {}
 void ConfigureSystem::applyConfiguration() {
     if (!enabled)
         return;
-    Settings::values.username = ui->edit_username->text().toStdString();
+
     Settings::values.language_index = ui->combo_language->currentIndex();
     Settings::Apply();
 }
 
-void ConfigureSystem::updateBirthdayComboBox(int birthmonth_index) {
+void ConfigureSystem::UpdateBirthdayComboBox(int birthmonth_index) {
     if (birthmonth_index < 0 || birthmonth_index >= 12)
         return;
 
@@ -78,7 +210,7 @@ void ConfigureSystem::updateBirthdayComboBox(int birthmonth_index) {
     ui->combo_birthday->setCurrentIndex(birthday_index);
 }
 
-void ConfigureSystem::refreshConsoleID() {
+void ConfigureSystem::RefreshConsoleID() {
     QMessageBox::StandardButton reply;
     QString warning_text = tr("This will replace your current virtual Switch with a new one. "
                               "Your current virtual Switch will not be recoverable. "
@@ -92,3 +224,129 @@ void ConfigureSystem::refreshConsoleID() {
     ui->label_console_id->setText(
         tr("Console ID: 0x%1").arg(QString::number(console_id, 16).toUpper()));
 }
+
+void ConfigureSystem::SelectUser(const QModelIndex& index) {
+    Settings::values.current_user =
+        std::clamp<std::size_t>(index.row(), 0, profile_manager->GetUserCount() - 1);
+
+    UpdateCurrentUser();
+
+    ui->pm_remove->setEnabled(profile_manager->GetUserCount() >= 2);
+    ui->pm_rename->setEnabled(true);
+    ui->pm_set_image->setEnabled(true);
+}
+
+void ConfigureSystem::AddUser() {
+    const auto uuid = Service::Account::UUID::Generate();
+
+    bool ok = false;
+    const auto username =
+        QInputDialog::getText(this, tr("Enter Username"), tr("Enter a username for the new user:"),
+                              QLineEdit::Normal, QString(), &ok);
+    if (!ok)
+        return;
+
+    profile_manager->CreateNewUser(uuid, username.toStdString());
+
+    item_model->appendRow(new QStandardItem{
+        GetIcon(uuid).scaled(64, 64, Qt::IgnoreAspectRatio, Qt::SmoothTransformation),
+        QString::fromStdString(username.toStdString() + '\n' + uuid.FormatSwitch())});
+}
+
+void ConfigureSystem::RenameUser() {
+    const auto user = tree_view->currentIndex().row();
+    const auto uuid = profile_manager->GetUser(user);
+    ASSERT(uuid != std::nullopt);
+    const auto username = GetAccountUsername(*profile_manager, *uuid);
+
+    Service::Account::ProfileBase profile;
+    if (!profile_manager->GetProfileBase(*uuid, profile))
+        return;
+
+    bool ok = false;
+    const auto new_username =
+        QInputDialog::getText(this, tr("Enter Username"), tr("Enter a new username:"),
+                              QLineEdit::Normal, QString::fromStdString(username), &ok);
+
+    if (!ok)
+        return;
+
+    std::fill(profile.username.begin(), profile.username.end(), '\0');
+    const auto username_std = new_username.toStdString();
+    if (username_std.size() > profile.username.size()) {
+        std::copy_n(username_std.begin(), std::min(profile.username.size(), username_std.size()),
+                    profile.username.begin());
+    } else {
+        std::copy(username_std.begin(), username_std.end(), profile.username.begin());
+    }
+
+    profile_manager->SetProfileBase(*uuid, profile);
+
+    item_model->setItem(
+        user, 0,
+        new QStandardItem{
+            GetIcon(*uuid).scaled(64, 64, Qt::IgnoreAspectRatio, Qt::SmoothTransformation),
+            tr("%1\n%2", "%1 is the profile username, %2 is the formatted UUID (e.g. "
+                         "00112233-4455-6677-8899-AABBCCDDEEFF))")
+                .arg(QString::fromStdString(username_std),
+                     QString::fromStdString(uuid->FormatSwitch()))});
+    UpdateCurrentUser();
+}
+
+void ConfigureSystem::DeleteUser() {
+    const auto index = tree_view->currentIndex().row();
+    const auto uuid = profile_manager->GetUser(index);
+    ASSERT(uuid != std::nullopt);
+    const auto username = GetAccountUsername(*profile_manager, *uuid);
+
+    const auto confirm =
+        QMessageBox::question(this, tr("Confirm Delete"),
+                              tr("You are about to delete user with name %1. Are you sure?")
+                                  .arg(QString::fromStdString(username)));
+
+    if (confirm == QMessageBox::No)
+        return;
+
+    if (Settings::values.current_user == tree_view->currentIndex().row())
+        Settings::values.current_user = 0;
+    UpdateCurrentUser();
+
+    if (!profile_manager->RemoveUser(*uuid))
+        return;
+
+    item_model->removeRows(tree_view->currentIndex().row(), 1);
+    tree_view->clearSelection();
+
+    ui->pm_remove->setEnabled(false);
+    ui->pm_rename->setEnabled(false);
+}
+
+void ConfigureSystem::SetUserImage() {
+    const auto index = tree_view->currentIndex().row();
+    const auto uuid = profile_manager->GetUser(index);
+    ASSERT(uuid != std::nullopt);
+    const auto username = GetAccountUsername(*profile_manager, *uuid);
+
+    const auto file = QFileDialog::getOpenFileName(this, tr("Select User Image"), QString(),
+                                                   tr("JPEG Images (*.jpg *.jpeg)"));
+
+    if (file.isEmpty())
+        return;
+
+    FileUtil::Delete(GetImagePath(*uuid));
+
+    const auto raw_path =
+        FileUtil::GetUserPath(FileUtil::UserPath::NANDDir) + "/system/save/8000000000000010";
+    if (FileUtil::Exists(raw_path) && !FileUtil::IsDirectory(raw_path))
+        FileUtil::Delete(raw_path);
+
+    FileUtil::CreateFullPath(GetImagePath(*uuid));
+    FileUtil::Copy(file.toStdString(), GetImagePath(*uuid));
+
+    item_model->setItem(
+        index, 0,
+        new QStandardItem{
+            GetIcon(*uuid).scaled(64, 64, Qt::IgnoreAspectRatio, Qt::SmoothTransformation),
+            QString::fromStdString(username + '\n' + uuid->FormatSwitch())});
+    UpdateCurrentUser();
+}
diff --git a/src/yuzu/configuration/configure_system.h b/src/yuzu/configuration/configure_system.h
index f13de17d4..07764e1f7 100644
--- a/src/yuzu/configuration/configure_system.h
+++ b/src/yuzu/configuration/configure_system.h
@@ -5,8 +5,20 @@
 #pragma once
 
 #include <memory>
+
+#include <QList>
 #include <QWidget>
 
+class QGraphicsScene;
+class QStandardItem;
+class QStandardItemModel;
+class QTreeView;
+class QVBoxLayout;
+
+namespace Service::Account {
+class ProfileManager;
+}
+
 namespace Ui {
 class ConfigureSystem;
 }
@@ -16,23 +28,39 @@ class ConfigureSystem : public QWidget {
 
 public:
     explicit ConfigureSystem(QWidget* parent = nullptr);
-    ~ConfigureSystem();
+    ~ConfigureSystem() override;
 
     void applyConfiguration();
     void setConfiguration();
 
-public slots:
-    void updateBirthdayComboBox(int birthmonth_index);
-    void refreshConsoleID();
-
 private:
     void ReadSystemSettings();
 
+    void UpdateBirthdayComboBox(int birthmonth_index);
+    void RefreshConsoleID();
+
+    void PopulateUserList();
+    void UpdateCurrentUser();
+    void SelectUser(const QModelIndex& index);
+    void AddUser();
+    void RenameUser();
+    void DeleteUser();
+    void SetUserImage();
+
+    QVBoxLayout* layout;
+    QTreeView* tree_view;
+    QStandardItemModel* item_model;
+    QGraphicsScene* scene;
+
+    std::vector<QList<QStandardItem*>> list_items;
+
     std::unique_ptr<Ui::ConfigureSystem> ui;
-    bool enabled;
+    bool enabled = false;
+
+    int birthmonth = 0;
+    int birthday = 0;
+    int language_index = 0;
+    int sound_index = 0;
 
-    std::u16string username;
-    int birthmonth, birthday;
-    int language_index;
-    int sound_index;
+    std::unique_ptr<Service::Account::ProfileManager> profile_manager;
 };
diff --git a/src/yuzu/configuration/configure_system.ui b/src/yuzu/configuration/configure_system.ui
index f3f8db038..020b32a37 100644
--- a/src/yuzu/configuration/configure_system.ui
+++ b/src/yuzu/configuration/configure_system.ui
@@ -7,7 +7,7 @@
     <x>0</x>
     <y>0</y>
     <width>360</width>
-    <height>377</height>
+    <height>483</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -22,34 +22,28 @@
         <string>System Settings</string>
        </property>
        <layout class="QGridLayout" name="gridLayout">
-        <item row="0" column="0">
-         <widget class="QLabel" name="label_username">
+        <item row="1" column="0">
+         <widget class="QLabel" name="label_language">
           <property name="text">
-           <string>Username</string>
+           <string>Language</string>
           </property>
          </widget>
         </item>
-        <item row="0" column="1">
-         <widget class="QLineEdit" name="edit_username">
-          <property name="sizePolicy">
-           <sizepolicy hsizetype="Preferred" vsizetype="Fixed">
-            <horstretch>0</horstretch>
-            <verstretch>0</verstretch>
-           </sizepolicy>
-          </property>
-          <property name="maxLength">
-           <number>32</number>
+        <item row="0" column="0">
+         <widget class="QLabel" name="label_birthday">
+          <property name="text">
+           <string>Birthday</string>
           </property>
          </widget>
         </item>
-        <item row="1" column="0">
-         <widget class="QLabel" name="label_birthday">
+        <item row="3" column="0">
+         <widget class="QLabel" name="label_console_id">
           <property name="text">
-           <string>Birthday</string>
+           <string>Console ID:</string>
           </property>
          </widget>
         </item>
-        <item row="1" column="1">
+        <item row="0" column="1">
          <layout class="QHBoxLayout" name="horizontalLayout_birthday2">
           <item>
            <widget class="QComboBox" name="combo_birthmonth">
@@ -120,14 +114,7 @@
           </item>
          </layout>
         </item>
-        <item row="2" column="0">
-         <widget class="QLabel" name="label_language">
-          <property name="text">
-           <string>Language</string>
-          </property>
-         </widget>
-        </item>
-        <item row="2" column="1">
+        <item row="1" column="1">
          <widget class="QComboBox" name="combo_language">
           <property name="toolTip">
            <string>Note: this can be overridden when region setting is auto-select</string>
@@ -187,31 +174,31 @@
             <string>Russian (Русский)</string>
            </property>
           </item>
-           <item>
-             <property name="text">
-               <string>Taiwanese</string>
-             </property>
-           </item>
-           <item>
-             <property name="text">
-               <string>British English</string>
-             </property>
-           </item>
-           <item>
-             <property name="text">
-               <string>Canadian French</string>
-             </property>
-           </item>
-           <item>
-             <property name="text">
-               <string>Latin American Spanish</string>
-             </property>
-           </item>
-           <item>
-             <property name="text">
-               <string>Simplified Chinese</string>
-             </property>
-           </item>
+          <item>
+           <property name="text">
+            <string>Taiwanese</string>
+           </property>
+          </item>
+          <item>
+           <property name="text">
+            <string>British English</string>
+           </property>
+          </item>
+          <item>
+           <property name="text">
+            <string>Canadian French</string>
+           </property>
+          </item>
+          <item>
+           <property name="text">
+            <string>Latin American Spanish</string>
+           </property>
+          </item>
+          <item>
+           <property name="text">
+            <string>Simplified Chinese</string>
+           </property>
+          </item>
           <item>
            <property name="text">
             <string>Traditional Chinese (正體中文)</string>
@@ -219,14 +206,14 @@
           </item>
          </widget>
         </item>
-        <item row="3" column="0">
+        <item row="2" column="0">
          <widget class="QLabel" name="label_sound">
           <property name="text">
            <string>Sound output mode</string>
           </property>
          </widget>
         </item>
-        <item row="3" column="1">
+        <item row="2" column="1">
          <widget class="QComboBox" name="combo_sound">
           <item>
            <property name="text">
@@ -245,14 +232,7 @@
           </item>
          </widget>
         </item>
-        <item row="4" column="0">
-         <widget class="QLabel" name="label_console_id">
-          <property name="text">
-           <string>Console ID:</string>
-          </property>
-         </widget>
-        </item>
-        <item row="4" column="1">
+        <item row="3" column="1">
          <widget class="QPushButton" name="button_regenerate_console_id">
           <property name="sizePolicy">
            <sizepolicy hsizetype="Fixed" vsizetype="Fixed">
@@ -272,6 +252,143 @@
       </widget>
      </item>
      <item>
+      <widget class="QGroupBox" name="gridGroupBox">
+       <property name="title">
+        <string>Profile Manager</string>
+       </property>
+       <layout class="QGridLayout" name="gridLayout_2">
+        <property name="sizeConstraint">
+         <enum>QLayout::SetNoConstraint</enum>
+        </property>
+        <item row="0" column="0">
+         <layout class="QHBoxLayout" name="horizontalLayout_2">
+          <item>
+           <widget class="QLabel" name="label">
+            <property name="sizePolicy">
+             <sizepolicy hsizetype="Preferred" vsizetype="Minimum">
+              <horstretch>0</horstretch>
+              <verstretch>0</verstretch>
+             </sizepolicy>
+            </property>
+            <property name="text">
+             <string>Current User</string>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="QGraphicsView" name="current_user_icon">
+            <property name="minimumSize">
+             <size>
+              <width>48</width>
+              <height>48</height>
+             </size>
+            </property>
+            <property name="maximumSize">
+             <size>
+              <width>48</width>
+              <height>48</height>
+             </size>
+            </property>
+            <property name="verticalScrollBarPolicy">
+             <enum>Qt::ScrollBarAlwaysOff</enum>
+            </property>
+            <property name="horizontalScrollBarPolicy">
+             <enum>Qt::ScrollBarAlwaysOff</enum>
+            </property>
+            <property name="interactive">
+             <bool>false</bool>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="QLabel" name="current_user_username">
+            <property name="sizePolicy">
+             <sizepolicy hsizetype="Preferred" vsizetype="Minimum">
+              <horstretch>0</horstretch>
+              <verstretch>0</verstretch>
+             </sizepolicy>
+            </property>
+            <property name="text">
+             <string>Username</string>
+            </property>
+           </widget>
+          </item>
+         </layout>
+        </item>
+        <item row="1" column="0">
+         <widget class="QScrollArea" name="scrollArea">
+          <property name="sizePolicy">
+           <sizepolicy hsizetype="Expanding" vsizetype="Expanding">
+            <horstretch>0</horstretch>
+            <verstretch>0</verstretch>
+           </sizepolicy>
+          </property>
+          <property name="frameShape">
+           <enum>QFrame::StyledPanel</enum>
+          </property>
+          <property name="widgetResizable">
+           <bool>false</bool>
+          </property>
+         </widget>
+        </item>
+        <item row="2" column="0">
+         <layout class="QHBoxLayout" name="horizontalLayout_3">
+          <item>
+           <widget class="QPushButton" name="pm_set_image">
+            <property name="enabled">
+             <bool>false</bool>
+            </property>
+            <property name="text">
+             <string>Set Image</string>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <spacer name="horizontalSpacer">
+            <property name="orientation">
+             <enum>Qt::Horizontal</enum>
+            </property>
+            <property name="sizeHint" stdset="0">
+             <size>
+              <width>40</width>
+              <height>20</height>
+             </size>
+            </property>
+           </spacer>
+          </item>
+          <item>
+           <widget class="QPushButton" name="pm_add">
+            <property name="text">
+             <string>Add</string>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="QPushButton" name="pm_rename">
+            <property name="enabled">
+             <bool>false</bool>
+            </property>
+            <property name="text">
+             <string>Rename</string>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="QPushButton" name="pm_remove">
+            <property name="enabled">
+             <bool>false</bool>
+            </property>
+            <property name="text">
+             <string>Remove</string>
+            </property>
+           </widget>
+          </item>
+         </layout>
+        </item>
+       </layout>
+      </widget>
+     </item>
+     <item>
       <widget class="QLabel" name="label_disable_info">
        <property name="text">
         <string>System settings are available only when game is not running.</string>
@@ -281,19 +398,6 @@
        </property>
       </widget>
      </item>
-     <item>
-      <spacer name="verticalSpacer">
-       <property name="orientation">
-        <enum>Qt::Vertical</enum>
-       </property>
-       <property name="sizeHint" stdset="0">
-        <size>
-         <width>20</width>
-         <height>40</height>
-        </size>
-       </property>
-      </spacer>
-     </item>
     </layout>
    </item>
   </layout>
diff --git a/src/yuzu/debugger/graphics/graphics_breakpoints.cpp b/src/yuzu/debugger/graphics/graphics_breakpoints.cpp
index b5c88f944..67ed0ba6d 100644
--- a/src/yuzu/debugger/graphics/graphics_breakpoints.cpp
+++ b/src/yuzu/debugger/graphics/graphics_breakpoints.cpp
@@ -2,7 +2,6 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
-#include <map>
 #include <QLabel>
 #include <QMetaType>
 #include <QPushButton>
@@ -32,21 +31,8 @@ QVariant BreakPointModel::data(const QModelIndex& index, int role) const {
     switch (role) {
     case Qt::DisplayRole: {
         if (index.column() == 0) {
-            static const std::map<Tegra::DebugContext::Event, QString> map = {
-                {Tegra::DebugContext::Event::MaxwellCommandLoaded, tr("Maxwell command loaded")},
-                {Tegra::DebugContext::Event::MaxwellCommandProcessed,
-                 tr("Maxwell command processed")},
-                {Tegra::DebugContext::Event::IncomingPrimitiveBatch,
-                 tr("Incoming primitive batch")},
-                {Tegra::DebugContext::Event::FinishedPrimitiveBatch,
-                 tr("Finished primitive batch")},
-            };
-
-            DEBUG_ASSERT(map.size() ==
-                         static_cast<std::size_t>(Tegra::DebugContext::Event::NumEvents));
-            return (map.find(event) != map.end()) ? map.at(event) : QString();
+            return DebugContextEventToString(event);
         }
-
         break;
     }
 
@@ -128,6 +114,23 @@ void BreakPointModel::OnResumed() {
     active_breakpoint = context->active_breakpoint;
 }
 
+QString BreakPointModel::DebugContextEventToString(Tegra::DebugContext::Event event) {
+    switch (event) {
+    case Tegra::DebugContext::Event::MaxwellCommandLoaded:
+        return tr("Maxwell command loaded");
+    case Tegra::DebugContext::Event::MaxwellCommandProcessed:
+        return tr("Maxwell command processed");
+    case Tegra::DebugContext::Event::IncomingPrimitiveBatch:
+        return tr("Incoming primitive batch");
+    case Tegra::DebugContext::Event::FinishedPrimitiveBatch:
+        return tr("Finished primitive batch");
+    case Tegra::DebugContext::Event::NumEvents:
+        break;
+    }
+
+    return tr("Unknown debug context event");
+}
+
 GraphicsBreakPointsWidget::GraphicsBreakPointsWidget(
     std::shared_ptr<Tegra::DebugContext> debug_context, QWidget* parent)
     : QDockWidget(tr("Maxwell Breakpoints"), parent), Tegra::DebugContext::BreakPointObserver(
diff --git a/src/yuzu/debugger/graphics/graphics_breakpoints_p.h b/src/yuzu/debugger/graphics/graphics_breakpoints_p.h
index 7112b87e6..fb488e38f 100644
--- a/src/yuzu/debugger/graphics/graphics_breakpoints_p.h
+++ b/src/yuzu/debugger/graphics/graphics_breakpoints_p.h
@@ -29,6 +29,8 @@ public:
     void OnResumed();
 
 private:
+    static QString DebugContextEventToString(Tegra::DebugContext::Event event);
+
     std::weak_ptr<Tegra::DebugContext> context_weak;
     bool at_breakpoint;
     Tegra::DebugContext::Event active_breakpoint;
diff --git a/src/yuzu/game_list.cpp b/src/yuzu/game_list.cpp
index 67890455a..a5a4aa432 100644
--- a/src/yuzu/game_list.cpp
+++ b/src/yuzu/game_list.cpp
@@ -16,7 +16,6 @@
 #include <fmt/format.h>
 #include "common/common_paths.h"
 #include "common/common_types.h"
-#include "common/file_util.h"
 #include "common/logging/log.h"
 #include "core/file_sys/patch_manager.h"
 #include "yuzu/compatibility_list.h"
@@ -217,11 +216,11 @@ GameList::GameList(FileSys::VirtualFilesystem vfs, GMainWindow* parent)
     tree_view->setContextMenuPolicy(Qt::CustomContextMenu);
 
     item_model->insertColumns(0, COLUMN_COUNT);
-    item_model->setHeaderData(COLUMN_NAME, Qt::Horizontal, "Name");
-    item_model->setHeaderData(COLUMN_COMPATIBILITY, Qt::Horizontal, "Compatibility");
-    item_model->setHeaderData(COLUMN_ADD_ONS, Qt::Horizontal, "Add-ons");
-    item_model->setHeaderData(COLUMN_FILE_TYPE, Qt::Horizontal, "File type");
-    item_model->setHeaderData(COLUMN_SIZE, Qt::Horizontal, "Size");
+    item_model->setHeaderData(COLUMN_NAME, Qt::Horizontal, tr("Name"));
+    item_model->setHeaderData(COLUMN_COMPATIBILITY, Qt::Horizontal, tr("Compatibility"));
+    item_model->setHeaderData(COLUMN_ADD_ONS, Qt::Horizontal, tr("Add-ons"));
+    item_model->setHeaderData(COLUMN_FILE_TYPE, Qt::Horizontal, tr("File type"));
+    item_model->setHeaderData(COLUMN_SIZE, Qt::Horizontal, tr("Size"));
 
     connect(tree_view, &QTreeView::activated, this, &GameList::ValidateEntry);
     connect(tree_view, &QTreeView::customContextMenuRequested, this, &GameList::PopupContextMenu);
@@ -387,9 +386,9 @@ void GameList::LoadCompatibilityList() {
 }
 
 void GameList::PopulateAsync(const QString& dir_path, bool deep_scan) {
-    if (!FileUtil::Exists(dir_path.toStdString()) ||
-        !FileUtil::IsDirectory(dir_path.toStdString())) {
-        LOG_ERROR(Frontend, "Could not find game list folder at {}", dir_path.toLocal8Bit().data());
+    const QFileInfo dir_info{dir_path};
+    if (!dir_info.exists() || !dir_info.isDir()) {
+        LOG_ERROR(Frontend, "Could not find game list folder at {}", dir_path.toStdString());
         search_field->setFilterResult(0, 0);
         return;
     }
diff --git a/src/yuzu/game_list_worker.cpp b/src/yuzu/game_list_worker.cpp
index 3881aba5f..3d865a12d 100644
--- a/src/yuzu/game_list_worker.cpp
+++ b/src/yuzu/game_list_worker.cpp
@@ -62,19 +62,24 @@ QString FormatPatchNameVersions(const FileSys::PatchManager& patch_manager,
     FileSys::VirtualFile update_raw;
     loader.ReadUpdateRaw(update_raw);
     for (const auto& kv : patch_manager.GetPatchVersionNames(update_raw)) {
-        if (!updatable && kv.first == "Update")
+        const bool is_update = kv.first == "Update";
+        if (!updatable && is_update) {
             continue;
+        }
+
+        const QString type = QString::fromStdString(kv.first);
 
         if (kv.second.empty()) {
-            out.append(fmt::format("{}\n", kv.first).c_str());
+            out.append(QStringLiteral("%1\n").arg(type));
         } else {
             auto ver = kv.second;
 
             // Display container name for packed updates
-            if (ver == "PACKED" && kv.first == "Update")
+            if (is_update && ver == "PACKED") {
                 ver = Loader::GetFileTypeString(loader.GetFileType());
+            }
 
-            out.append(fmt::format("{} ({})\n", kv.first, ver).c_str());
+            out.append(QStringLiteral("%1 (%2)\n").arg(type, QString::fromStdString(ver)));
         }
     }
 
diff --git a/src/yuzu/main.cpp b/src/yuzu/main.cpp
index a3bcb134c..b5bfa6741 100644
--- a/src/yuzu/main.cpp
+++ b/src/yuzu/main.cpp
@@ -10,6 +10,7 @@
 // VFS includes must be before glad as they will conflict with Windows file api, which uses defines.
 #include "core/file_sys/vfs.h"
 #include "core/file_sys/vfs_real.h"
+#include "core/hle/service/acc/profile_manager.h"
 
 // These are wrappers to avoid the calls to CreateDirectory and CreateFile becuase of the Windows
 // defines.
@@ -758,12 +759,43 @@ void GMainWindow::OnGameListOpenFolder(u64 program_id, GameListOpenTarget target
         open_target = "Save Data";
         const std::string nand_dir = FileUtil::GetUserPath(FileUtil::UserPath::NANDDir);
         ASSERT(program_id != 0);
-        // TODO(tech4me): Update this to work with arbitrary user profile
-        // Refer to core/hle/service/acc/profile_manager.cpp ProfileManager constructor
-        constexpr u128 user_id = {1, 0};
+
+        Service::Account::ProfileManager manager{};
+        const auto user_ids = manager.GetAllUsers();
+        QStringList list;
+        for (const auto& user_id : user_ids) {
+            if (user_id == Service::Account::UUID{})
+                continue;
+            Service::Account::ProfileBase base;
+            if (!manager.GetProfileBase(user_id, base))
+                continue;
+
+            list.push_back(QString::fromStdString(Common::StringFromFixedZeroTerminatedBuffer(
+                reinterpret_cast<const char*>(base.username.data()), base.username.size())));
+        }
+
+        bool ok = false;
+        const auto index_string =
+            QInputDialog::getItem(this, tr("Select User"),
+                                  tr("Please select the user's save data you would like to open."),
+                                  list, Settings::values.current_user, false, &ok);
+        if (!ok)
+            return;
+
+        const auto index = list.indexOf(index_string);
+        ASSERT(index != -1 && index < 8);
+
+        const auto user_id = manager.GetUser(index);
+        ASSERT(user_id != std::nullopt);
         path = nand_dir + FileSys::SaveDataFactory::GetFullPath(FileSys::SaveDataSpaceId::NandUser,
                                                                 FileSys::SaveDataType::SaveData,
-                                                                program_id, user_id, 0);
+                                                                program_id, user_id->uuid, 0);
+
+        if (!FileUtil::Exists(path)) {
+            FileUtil::CreateFullPath(path);
+            FileUtil::CreateDir(path);
+        }
+
         break;
     }
     case GameListOpenTarget::ModData: {
diff --git a/src/yuzu_cmd/config.cpp b/src/yuzu_cmd/config.cpp
index 654a15a5c..b456266a6 100644
--- a/src/yuzu_cmd/config.cpp
+++ b/src/yuzu_cmd/config.cpp
@@ -8,6 +8,7 @@
 #include "common/file_util.h"
 #include "common/logging/log.h"
 #include "common/param_package.h"
+#include "core/hle/service/acc/profile_manager.h"
 #include "core/settings.h"
 #include "input_common/main.h"
 #include "yuzu_cmd/config.h"
@@ -126,10 +127,10 @@ void Config::ReadValues() {
     // System
     Settings::values.use_docked_mode = sdl2_config->GetBoolean("System", "use_docked_mode", false);
     Settings::values.enable_nfc = sdl2_config->GetBoolean("System", "enable_nfc", true);
-    Settings::values.username = sdl2_config->Get("System", "username", "yuzu");
-    if (Settings::values.username.empty()) {
-        Settings::values.username = "yuzu";
-    }
+    const auto size = sdl2_config->GetInteger("System", "users_size", 0);
+
+    Settings::values.current_user = std::clamp<int>(
+        sdl2_config->GetInteger("System", "current_user", 0), 0, Service::Account::MAX_USERS - 1);
 
     // Miscellaneous
     Settings::values.log_filter = sdl2_config->Get("Miscellaneous", "log_filter", "*:Trace");