diff --git a/.github/workflows/Linux_Build.yml b/.github/workflows/Linux_Build.yml
index e141b465..bbc79d81 100644
--- a/.github/workflows/Linux_Build.yml
+++ b/.github/workflows/Linux_Build.yml
@@ -24,7 +24,7 @@ jobs:
       run: git submodule update --init --recursive
 
     - name: Install misc packages
-      run: sudo apt-get update && sudo apt install libx11-dev libgl1-mesa-glx
+      run: sudo apt-get update && sudo apt install libx11-dev libgl1-mesa-glx mesa-common-dev
 
     - name: Setup Vulkan SDK
       uses: humbletim/setup-vulkan-sdk@v1.2.0
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 64b11838..986bcc27 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -135,7 +135,7 @@ set(SERVICE_SOURCE_FILES src/core/services/service_manager.cpp src/core/services
                          src/core/services/frd.cpp src/core/services/nim.cpp src/core/services/shared_font.cpp
                          src/core/services/y2r.cpp src/core/services/cam.cpp src/core/services/ldr_ro.cpp
                          src/core/services/act.cpp src/core/services/nfc.cpp src/core/services/dlp_srvr.cpp
-                         src/core/services/ir_user.cpp src/core/services/http.cpp
+                         src/core/services/ir_user.cpp src/core/services/http.cpp src/core/services/soc.cpp
 )
 set(PICA_SOURCE_FILES src/core/PICA/gpu.cpp src/core/PICA/regs.cpp src/core/PICA/shader_unit.cpp
                       src/core/PICA/shader_interpreter.cpp src/core/PICA/dynapica/shader_rec.cpp
@@ -176,7 +176,7 @@ set(HEADER_FILES include/emulator.hpp include/helpers.hpp include/termcolor.hpp
                  include/config.hpp include/services/ir_user.hpp include/http_server.hpp include/cheats.hpp
                  include/action_replay.hpp include/renderer_sw/renderer_sw.hpp include/compiler_builtins.hpp
                  include/fs/romfs.hpp include/fs/ivfc.hpp include/discord_rpc.hpp include/services/http.hpp include/result/result_cfg.hpp
-                 include/math_util.hpp
+                 include/math_util.hpp include/services/soc.hpp
 )
 
 set(THIRD_PARTY_SOURCE_FILES third_party/imgui/imgui.cpp
diff --git a/include/kernel/config_mem.hpp b/include/kernel/config_mem.hpp
index 062eb551..71f46390 100644
--- a/include/kernel/config_mem.hpp
+++ b/include/kernel/config_mem.hpp
@@ -9,6 +9,13 @@ namespace ConfigMem {
 		SyscoreVer = 0x1FF80010,
 		EnvInfo = 0x1FF80014,
 		AppMemAlloc = 0x1FF80040,
+		FirmUnknown = 0x1FF80060,
+		FirmRevision = 0x1FF80061,
+		FirmVersionMinor = 0x1FF80062,
+		FirmVersionMajor = 0x1FF80063,
+		FirmSyscoreVer = 0x1FF80064,
+		FirmSdkVer = 0x1FF80068,
+
 		HardwareType = 0x1FF81004,
 		Datetime0 = 0x1FF81020,
 		WifiMac = 0x1FF81060,
diff --git a/include/kernel/handles.hpp b/include/kernel/handles.hpp
index faccf148..256ae02b 100644
--- a/include/kernel/handles.hpp
+++ b/include/kernel/handles.hpp
@@ -17,7 +17,8 @@ namespace KernelHandles {
 		BOSS, // Streetpass stuff?
 		CAM,  // Camera service
 		CECD, // More Streetpass stuff?
-		CFG,  // CFG service (Console & region info)
+		CFG_U,  // CFG service (Console & region info)
+		CFG_I,
 		DLP_SRVR, // Download Play: Server. Used for network play.
 		DSP,  // DSP service (Used for audio decoding and output)
 		HID,  // HID service (Handles input-related things including gyro. Does NOT handle New3DS controls or CirclePadPro)
@@ -33,6 +34,7 @@ namespace KernelHandles {
 		NIM,  // Updates, DLC, etc
 		NDM,  // ?????
 		PTM,  // PTM service (Used for accessing various console info, such as battery, shell and pedometer state)
+		SOC,  // Socket service
 		Y2R,  // Also does camera stuff
 
 		MinServiceHandle = AC,
@@ -66,7 +68,8 @@ namespace KernelHandles {
 			case BOSS: return "BOSS";
 			case CAM: return "CAM";
 			case CECD: return "CECD";
-			case CFG: return "CFG";
+			case CFG_U: return "CFG:U";
+			case CFG_I: return "CFG:I";
 			case DSP: return "DSP";
 			case DLP_SRVR: return "DLP::SRVR";
 			case HID: return "HID";
@@ -82,6 +85,7 @@ namespace KernelHandles {
 			case NFC: return "NFC";
 			case NIM: return "NIM";
 			case PTM: return "PTM";
+			case SOC: return "SOC";
 			case Y2R: return "Y2R";
 			default: return "Unknown";
 		}
diff --git a/include/kernel/kernel.hpp b/include/kernel/kernel.hpp
index 06f5dceb..e1d521c7 100644
--- a/include/kernel/kernel.hpp
+++ b/include/kernel/kernel.hpp
@@ -34,6 +34,7 @@ class Kernel {
 
 	std::vector<KernelObject> objects;
 	std::vector<Handle> portHandles;
+	std::vector<Handle> mutexHandles;
 
 	// Thread indices, sorted by priority
 	std::vector<int> threadIndices;
diff --git a/include/logger.hpp b/include/logger.hpp
index a3112dde..26ecb70f 100644
--- a/include/logger.hpp
+++ b/include/logger.hpp
@@ -53,6 +53,7 @@ namespace Log {
 	static Logger<false> nimLogger;
 	static Logger<false> ndmLogger;
 	static Logger<false> ptmLogger;
+	static Logger<false> socLogger;
 	static Logger<false> y2rLogger;
 	static Logger<false> srvLogger;
 
diff --git a/include/memory.hpp b/include/memory.hpp
index 0b3b184c..89d191b3 100644
--- a/include/memory.hpp
+++ b/include/memory.hpp
@@ -139,6 +139,19 @@ private:
 	// Report a retail unit without JTAG
 	static constexpr u32 envInfo = 1;
 
+	// Stored in Configuration Memory starting @ 0x1FF80060 
+	struct FirmwareInfo {
+		u8 unk; // Usually 0 according to 3DBrew
+		u8 revision;
+		u8 minor;
+		u8 major;
+		u32 syscoreVer;
+		u32 sdkVer;
+	};
+
+	// Values taken from 3DBrew and Citra
+	static constexpr FirmwareInfo firm{.unk = 0, .revision = 0, .minor = 0x34, .major = 2, .syscoreVer = 2, .sdkVer = 0x0000F297};
+
 public:
 	u16 kernelVersion = 0;
 	u32 usedUserMemory = u32(0_MB); // How much of the APPLICATION FCRAM range is used (allocated to the appcore)
diff --git a/include/services/cfg.hpp b/include/services/cfg.hpp
index 666e8b23..c8c8adde 100644
--- a/include/services/cfg.hpp
+++ b/include/services/cfg.hpp
@@ -7,7 +7,6 @@
 #include "result/result.hpp"
 
 class CFGService {
-	Handle handle = KernelHandles::CFG;
 	Memory& mem;
 	CountryCodes country = CountryCodes::US; // Default to USA
 	MAKE_LOG_FUNCTION(log, cfgLogger)
diff --git a/include/services/service_manager.hpp b/include/services/service_manager.hpp
index 9e1d9b2f..08460cd5 100644
--- a/include/services/service_manager.hpp
+++ b/include/services/service_manager.hpp
@@ -29,6 +29,7 @@
 #include "services/nfc.hpp"
 #include "services/nim.hpp"
 #include "services/ptm.hpp"
+#include "services/soc.hpp"
 #include "services/y2r.hpp"
 
 // More circular dependencies!!
@@ -66,6 +67,7 @@ class ServiceManager {
     NIMService nim;
 	NDMService ndm;
 	PTMService ptm;
+	SOCService soc;
 	Y2RService y2r;
 
 	// "srv:" commands
diff --git a/include/services/soc.hpp b/include/services/soc.hpp
new file mode 100644
index 00000000..88f0b456
--- /dev/null
+++ b/include/services/soc.hpp
@@ -0,0 +1,21 @@
+#pragma once
+#include "helpers.hpp"
+#include "kernel_types.hpp"
+#include "logger.hpp"
+#include "memory.hpp"
+
+class SOCService {
+	Handle handle = KernelHandles::SOC;
+	Memory& mem;
+	MAKE_LOG_FUNCTION(log, socLogger)
+
+	bool initialized = false;
+
+	// Service commands
+	void initializeSockets(u32 messagePointer);
+
+public:
+	SOCService(Memory& mem) : mem(mem) {}
+	void reset();
+	void handleSyncRequest(u32 messagePointer);
+};
\ No newline at end of file
diff --git a/src/core/fs/ivfc.cpp b/src/core/fs/ivfc.cpp
index 78e50f29..ca8c5e26 100644
--- a/src/core/fs/ivfc.cpp
+++ b/src/core/fs/ivfc.cpp
@@ -58,7 +58,7 @@ namespace IVFC {
 
 		// According to 3DBrew, this is usually the case but not guaranteed
 		if (ivfcActualSize != ivfcDescriptorSize) {
-			printf("IVFC descriptor size mismatch: %lx != %lx\n", ivfcActualSize, ivfcDescriptorSize);
+			printf("IVFC descriptor size mismatch: %llx != %llx\n", ivfcActualSize, ivfcDescriptorSize);
 		}
 
 		if (magicIdentifier == 0x10000 && ivfcActualSize != 0x5C) {
@@ -73,4 +73,4 @@ namespace IVFC {
 
 		return ivfcActualSize;
 	}
-}  // namespace IVFC
\ No newline at end of file
+}  // namespace IVFC
diff --git a/src/core/kernel/kernel.cpp b/src/core/kernel/kernel.cpp
index e7b34923..6f3cf081 100644
--- a/src/core/kernel/kernel.cpp
+++ b/src/core/kernel/kernel.cpp
@@ -6,6 +6,7 @@
 Kernel::Kernel(CPU& cpu, Memory& mem, GPU& gpu)
 	: cpu(cpu), regs(cpu.regs()), mem(mem), handleCounter(0), serviceManager(regs, mem, gpu, currentProcess, *this) {
 	objects.reserve(512); // Make room for a few objects to avoid further memory allocs later
+	mutexHandles.reserve(8);
 	portHandles.reserve(32);
 	threadIndices.reserve(appResourceLimits.maxThreads);
 
@@ -139,6 +140,7 @@ void Kernel::reset() {
 		deleteObjectData(object);
 	}
 	objects.clear();
+	mutexHandles.clear();
 	portHandles.clear();
 	threadIndices.clear();
 	serviceManager.reset();
@@ -256,6 +258,7 @@ void Kernel::duplicateHandle() {
 
 namespace SystemInfoType {
 	enum : u32 {
+		MemoryInformation = 0,
 		// Gets information related to Citra (We don't implement this, we just report this emulator is not Citra)
 		CitraInformation = 0x20000,
 		// Gets information related to this emulator
@@ -292,6 +295,22 @@ void Kernel::getSystemInfo() {
 
 	regs[0] = Result::Success;
 	switch (infoType) {
+		case SystemInfoType::MemoryInformation: {
+			switch (subtype) {
+				// Total used memory size in the APPLICATION memory region
+				case 1:
+					regs[1] = mem.getUsedUserMem();
+					regs[2] = 0;
+					break;
+
+				default:
+					Helpers::panic("GetSystemInfo: Unknown MemoryInformation subtype %x\n", subtype);
+					regs[0] = Result::FailurePlaceholder;
+					break;
+			}
+			break;
+		}
+
 		case SystemInfoType::CitraInformation: {
 			switch (subtype) {
 				case CitraInfoType::IsCitra:
diff --git a/src/core/kernel/threads.cpp b/src/core/kernel/threads.cpp
index 2e39b620..440045d3 100644
--- a/src/core/kernel/threads.cpp
+++ b/src/core/kernel/threads.cpp
@@ -168,6 +168,11 @@ Handle Kernel::makeMutex(bool locked) {
 		moo->ownerThread = currentThreadIndex;
 	}
 
+	// Push the new mutex to our list of mutex handles
+	// We need a list of mutex handles so that when a thread is killed, we can look which mutexes from this list the thread owns and free them
+	// Alternatively this could be a per-thread list, but I don't want to push_back and remove on every mutex lock and release
+	// Since some mutexes like the APT service mutex are locked and unlocked constantly, while ExitThread is a relatively "rare" SVC
+	mutexHandles.push_back(ret);
 	return ret;
 }
 
@@ -466,6 +471,23 @@ void Kernel::setThreadPriority() {
 void Kernel::exitThread() {
 	logSVC("ExitThread\n");
 
+	// Find which mutexes this thread owns, release them
+	for (auto handle : mutexHandles) {
+		KernelObject* object = getObject(handle, KernelObjectType::Mutex);
+
+		// Make sure that the handle actually matches to a mutex, and if our exiting thread owns the mutex, release it
+		if (object != nullptr) {
+			Mutex* moo = object->getData<Mutex>();
+
+			if (moo->locked && moo->ownerThread == currentThreadIndex) {
+				// Release the mutex by setting lock count to 1 and releasing it once. We set lock count to 1 since it's a recursive mutex
+				// Therefore if its lock count was > 1, simply calling releaseMutex would not fully release it
+				moo->lockCount = 1;
+				releaseMutex(moo);
+			}
+		}
+	}
+
 	// Remove the index of this thread from the thread indices vector
 	for (int i = 0; i < threadIndices.size(); i++) {
 		if (threadIndices[i] == currentThreadIndex)
diff --git a/src/core/memory.cpp b/src/core/memory.cpp
index 3b987507..d37f2eea 100644
--- a/src/core/memory.cpp
+++ b/src/core/memory.cpp
@@ -91,6 +91,12 @@ u8 Memory::read8(u32 vaddr) {
 			case ConfigMem::NetworkState: return 2;  // Report that we've got an internet connection
 			case ConfigMem::HeadphonesConnectedMaybe: return 0;
 			case ConfigMem::Unknown1086: return 1;  // It's unknown what this is but some games want it to be 1
+
+			case ConfigMem::FirmUnknown: return firm.unk;
+			case ConfigMem::FirmRevision: return firm.revision;
+			case ConfigMem::FirmVersionMinor: return firm.minor;
+			case ConfigMem::FirmVersionMajor: return firm.major;
+
 			default: Helpers::panic("Unimplemented 8-bit read, addr: %08X", vaddr);
 		}
 	}
@@ -138,6 +144,8 @@ u32 Memory::read32(u32 vaddr) {
 
 			// 3D slider. Float in range 0.0 = off, 1.0 = max.
 			case ConfigMem::SliderState3D: return Helpers::bit_cast<u32, float>(0.0f);
+			case ConfigMem::FirmUnknown:
+				return u32(read8(vaddr)) | (u32(read8(vaddr + 1)) << 8) | (u32(read8(vaddr + 2)) << 16) | (u32(read8(vaddr + 3)) << 24);
 
 			default:
 				if (vaddr >= VirtualAddrs::VramStart && vaddr < VirtualAddrs::VramStart + VirtualAddrs::VramSize) {
diff --git a/src/core/services/apt.cpp b/src/core/services/apt.cpp
index 124e5c95..4ad7f353 100644
--- a/src/core/services/apt.cpp
+++ b/src/core/services/apt.cpp
@@ -2,6 +2,8 @@
 #include "ipc.hpp"
 #include "kernel.hpp"
 
+#include <vector>
+
 namespace APTCommands {
 	enum : u32 {
 		GetLockHandle = 0x00010040,
@@ -94,10 +96,24 @@ void APTService::appletUtility(u32 messagePointer) {
 	u32 outputSize = mem.read32(messagePointer + 12);
 	u32 inputPointer = mem.read32(messagePointer + 20);
 
-	log("APT::AppletUtility(utility = %d, input size = %x, output size = %x, inputPointer = %08X) (Stubbed)\n", utility, inputSize,
-		outputSize, inputPointer);
+	log("APT::AppletUtility(utility = %d, input size = %x, output size = %x, inputPointer = %08X) (Stubbed)\n", utility, inputSize, outputSize,
+		inputPointer);
+
+	std::vector<u8> out(outputSize);
+	const u32 outputBuffer = mem.read32(messagePointer + 0x104);
+
+	if (outputSize >= 1 && utility == 6) {
+		// TryLockTransition expects a bool indicating success in the output buffer. Set it to true to avoid games panicking (Thanks to Citra)
+		out[0] = true;
+	}
+
 	mem.write32(messagePointer, IPC::responseHeader(0x4B, 2, 2));
 	mem.write32(messagePointer + 4, Result::Success);
+	mem.write32(messagePointer + 8, Result::Success);
+
+	for (u32 i = 0; i < outputSize; i++) {
+		mem.write8(outputBuffer + i, out[i]);
+	}
 }
 
 void APTService::preloadLibraryApplet(u32 messagePointer) {
diff --git a/src/core/services/fs.cpp b/src/core/services/fs.cpp
index 7b64b234..c5b69c0e 100644
--- a/src/core/services/fs.cpp
+++ b/src/core/services/fs.cpp
@@ -499,6 +499,12 @@ void FSService::controlArchive(u32 messagePointer) {
 		case 0: // Commit save data changes. Shouldn't need us to do anything
 			mem.write32(messagePointer + 4, Result::Success);
 			break;
+
+		case 1: // Retrieves a file's last-modified timestamp. Seen in DDLC, stubbed for the moment
+			Helpers::warn("FS::ControlArchive: Tried to retrieve a file's last-modified timestamp");
+			mem.write32(messagePointer + 4, Result::Success);
+			break;
+
 		default:
 			Helpers::panic("Unimplemented action for ControlArchive (action = %X)\n", action);
 			break;
diff --git a/src/core/services/service_manager.cpp b/src/core/services/service_manager.cpp
index 20beac6d..56ae6637 100644
--- a/src/core/services/service_manager.cpp
+++ b/src/core/services/service_manager.cpp
@@ -8,7 +8,8 @@
 ServiceManager::ServiceManager(std::span<u32, 16> regs, Memory& mem, GPU& gpu, u32& currentPID, Kernel& kernel)
 	: regs(regs), mem(mem), kernel(kernel), ac(mem), am(mem), boss(mem), act(mem), apt(mem, kernel), cam(mem), cecd(mem, kernel), cfg(mem),
 	  dlp_srvr(mem), dsp(mem, kernel), hid(mem, kernel), http(mem), ir_user(mem, kernel), frd(mem), fs(mem, kernel),
-	  gsp_gpu(mem, gpu, kernel, currentPID), gsp_lcd(mem), ldr(mem), mic(mem), nfc(mem, kernel), nim(mem), ndm(mem), ptm(mem), y2r(mem, kernel) {}
+	  gsp_gpu(mem, gpu, kernel, currentPID), gsp_lcd(mem), ldr(mem), mic(mem), nfc(mem, kernel), nim(mem), ndm(mem), ptm(mem), soc(mem),
+	  y2r(mem, kernel) {}
 
 static constexpr int MAX_NOTIFICATION_COUNT = 16;
 
@@ -36,6 +37,7 @@ void ServiceManager::reset() {
 	nim.reset();
 	ndm.reset();
 	ptm.reset();
+	soc.reset();
 	y2r.reset();
 
 	notificationSemaphore = std::nullopt;
@@ -95,7 +97,8 @@ static std::map<std::string, Handle> serviceMap = {
 	{ "boss:U", KernelHandles::BOSS },
 	{ "cam:u", KernelHandles::CAM },
 	{ "cecd:u", KernelHandles::CECD },
-	{ "cfg:u", KernelHandles::CFG },
+	{ "cfg:u", KernelHandles::CFG_U },
+	{ "cfg:i", KernelHandles::CFG_I },
 	{ "dlp:SRVR", KernelHandles::DLP_SRVR },
 	{ "dsp::DSP", KernelHandles::DSP },
 	{ "hid:USER", KernelHandles::HID },
@@ -112,6 +115,7 @@ static std::map<std::string, Handle> serviceMap = {
 	{ "nim:aoc", KernelHandles::NIM },
 	{ "ptm:u", KernelHandles::PTM }, // TODO: ptm:u and ptm:sysm have very different command sets
 	{ "ptm:sysm", KernelHandles::PTM },
+	{ "soc:U", KernelHandles::SOC },
 	{ "y2r:u", KernelHandles::Y2R }
 };
 // clang-format on
@@ -181,7 +185,7 @@ void ServiceManager::sendCommandToService(u32 messagePointer, Handle handle) {
         case KernelHandles::BOSS: boss.handleSyncRequest(messagePointer); break;
 		case KernelHandles::CAM: cam.handleSyncRequest(messagePointer); break;
 		case KernelHandles::CECD: cecd.handleSyncRequest(messagePointer); break;
-		case KernelHandles::CFG: cfg.handleSyncRequest(messagePointer); break;
+		case KernelHandles::CFG_U: cfg.handleSyncRequest(messagePointer); break;
 		case KernelHandles::DLP_SRVR: dlp_srvr.handleSyncRequest(messagePointer); break;
 		case KernelHandles::HID: hid.handleSyncRequest(messagePointer); break;
 		case KernelHandles::HTTP: http.handleSyncRequest(messagePointer); break;
@@ -194,6 +198,7 @@ void ServiceManager::sendCommandToService(u32 messagePointer, Handle handle) {
         case KernelHandles::NIM: nim.handleSyncRequest(messagePointer); break;
 		case KernelHandles::NDM: ndm.handleSyncRequest(messagePointer); break;
 		case KernelHandles::PTM: ptm.handleSyncRequest(messagePointer); break;
+		case KernelHandles::SOC: soc.handleSyncRequest(messagePointer); break;
 		case KernelHandles::Y2R: y2r.handleSyncRequest(messagePointer); break;
 		default: Helpers::panic("Sent IPC message to unknown service %08X\n Command: %08X", handle, mem.read32(messagePointer));
 	}
diff --git a/src/core/services/soc.cpp b/src/core/services/soc.cpp
new file mode 100644
index 00000000..4ad546b0
--- /dev/null
+++ b/src/core/services/soc.cpp
@@ -0,0 +1,33 @@
+#include "services/soc.hpp"
+
+#include "ipc.hpp"
+#include "result/result.hpp"
+
+namespace SOCCommands {
+	enum : u32 {
+		InitializeSockets = 0x00010044,
+	};
+}
+
+void SOCService::reset() { initialized = false; }
+
+void SOCService::handleSyncRequest(u32 messagePointer) {
+	const u32 command = mem.read32(messagePointer);
+	switch (command) {
+		case SOCCommands::InitializeSockets: initializeSockets(messagePointer); break;
+		default: Helpers::panic("SOC service requested. Command: %08X\n", command);
+	}
+}
+
+void SOCService::initializeSockets(u32 messagePointer) {
+	const u32 memoryBlockSize = mem.read32(messagePointer + 4);
+	const Handle sharedMemHandle = mem.read32(messagePointer + 20);
+	log("SOC::InitializeSockets (memory block size = %08X, shared mem handle = %08X)\n", memoryBlockSize, sharedMemHandle);
+
+	// TODO: Does double initialization return an error code?
+	// TODO: Implement the rest of this stuff when it's time to do online. Also implement error checking for the size, shared mem handle, and so on
+	initialized = true;
+
+	mem.write32(messagePointer, IPC::responseHeader(0x01, 1, 0));
+	mem.write32(messagePointer + 4, Result::Success);
+}
\ No newline at end of file