diff --git a/CMakeLists.txt b/CMakeLists.txt
index f6045ed4..ac74c178 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,14 +5,13 @@ project(nostalgia)
 set(NOSTALGIA_BUILD_TYPE "Native" CACHE STRING "The type of build to produce(Native/GBA)")
 set(NOSTALGIA_IDE_BUILD ON CACHE STRING "Build for IDE's to run")
 set(NOSTALGIA_QT_PATH "" CACHE STRING "Path to Qt Libraries")
-set(NOSTALGIA_BUILD_STUDIO ON CACHE STRING "Build Studio")
+set(NOSTALGIA_BUILD_STUDIO ON CACHE BOOL "Build Studio")
 
 if(NOSTALGIA_BUILD_TYPE STREQUAL "GBA")
 	set(NOSTALGIA_BUILD_STUDIO OFF)
 	set(OX_BARE_METAL ON)
 	set(OX_USE_STDLIB OFF)
 else()
-	set(NOSTALGIA_BUILD_STUDIO ON)
 	set(CMAKE_PREFIX_PATH ${CMAKE_PREFIX_PATH} ${NOSTALGIA_QT_PATH})
 endif()
 
diff --git a/Jenkinsfile b/Jenkinsfile
index cd61dd08..a2ec6e23 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -3,6 +3,7 @@ pipeline {
 	stages {
 		stage('Build') {
 			steps {
+				sh 'make conan'
 				sh 'make configure-debug configure-release'
 				sh 'make'
 			}
diff --git a/deps/gbastartup/cstartup.cpp b/deps/gbastartup/cstartup.cpp
index 22a1710d..80952fc2 100644
--- a/deps/gbastartup/cstartup.cpp
+++ b/deps/gbastartup/cstartup.cpp
@@ -1,3 +1,10 @@
+/*
+ * Copyright 2016 - 2020 gtalent2@gmail.com
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
 
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wpedantic"
@@ -7,6 +14,13 @@ extern void (*__preinit_array_end[]) (void);
 extern void (*__init_array_start[]) (void);
 extern void (*__init_array_end[]) (void);
 
+namespace nostalgia::core {
+
+void initHeap();
+
+}
+
+
 extern "C" {
 
 void __libc_init_array() {
@@ -24,6 +38,7 @@ int main(int argc, const char **argv);
 
 int c_start() {
 	const char *args[2] = {"", "rom.oxfs"};
+	nostalgia::core::initHeap();
 	return main(2, args);
 }
 
diff --git a/deps/ox/src/ox/fs/filestore/filestoretemplate.hpp b/deps/ox/src/ox/fs/filestore/filestoretemplate.hpp
index 4d7ccdb4..ac1546e8 100644
--- a/deps/ox/src/ox/fs/filestore/filestoretemplate.hpp
+++ b/deps/ox/src/ox/fs/filestore/filestoretemplate.hpp
@@ -122,7 +122,7 @@ class FileStoreTemplate {
 
 		[[nodiscard]] InodeId_t available();
 
-		[[nodiscard]] uint8_t *buff();
+		[[nodiscard]] char *buff();
 
 		[[nodiscard]] Error walk(Error(*cb)(uint8_t, uint64_t, uint64_t));
 
@@ -464,8 +464,8 @@ typename FileStoreTemplate<size_t>::InodeId_t FileStoreTemplate<size_t>::availab
 }
 
 template<typename size_t>
-uint8_t *FileStoreTemplate<size_t>::buff() {
-	return reinterpret_cast<uint8_t*>(m_buffer);
+char *FileStoreTemplate<size_t>::buff() {
+	return reinterpret_cast<char*>(m_buffer);
 }
 
 template<typename size_t>
diff --git a/deps/ox/src/ox/fs/filesystem/filesystem.hpp b/deps/ox/src/ox/fs/filesystem/filesystem.hpp
index a14957d8..27c612bb 100644
--- a/deps/ox/src/ox/fs/filesystem/filesystem.hpp
+++ b/deps/ox/src/ox/fs/filesystem/filesystem.hpp
@@ -70,7 +70,7 @@ class FileSystem {
 
 		[[nodiscard]] virtual uint64_t size() const = 0;
 
-		[[nodiscard]] virtual uint8_t *buff() = 0;
+		[[nodiscard]] virtual char *buff() = 0;
 
 		[[nodiscard]] virtual ox::Error walk(ox::Error(*cb)(uint8_t, uint64_t, uint64_t)) = 0;
 
@@ -94,12 +94,12 @@ class FileSystemTemplate: public FileSystem {
 		};
 
 		FileStore m_fs;
-		void(*m_freeBuffer)(uint8_t*) = nullptr;
+		void(*m_freeBuffer)(char*) = nullptr;
 
 	public:
 		FileSystemTemplate() = default;
 
-		FileSystemTemplate(void *buffer, uint64_t bufferSize, void(*freeBuffer)(uint8_t*) = [] (uint8_t *buff) { delete buff; });
+		FileSystemTemplate(void *buffer, uint64_t bufferSize, void(*freeBuffer)(char*) = [] (char *buff) { delete buff; });
 
 		FileSystemTemplate(FileStore fs);
 
@@ -147,7 +147,7 @@ class FileSystemTemplate: public FileSystem {
 
 		uint64_t size() const override;
 
-		uint8_t *buff() override;
+		char *buff() override;
 
 		[[nodiscard]] ox::Error walk(ox::Error(*cb)(uint8_t, uint64_t, uint64_t)) override;
 
@@ -171,7 +171,7 @@ FileSystemTemplate<FileStore, Directory>::FileSystemTemplate(FileStore fs) {
 }
 
 template<typename FileStore, typename Directory>
-FileSystemTemplate<FileStore, Directory>::FileSystemTemplate(void *buffer, uint64_t bufferSize, void(*freeBuffer)(uint8_t*)):
+FileSystemTemplate<FileStore, Directory>::FileSystemTemplate(void *buffer, uint64_t bufferSize, void(*freeBuffer)(char*)):
 	m_fs(buffer, bufferSize),
 	m_freeBuffer(freeBuffer) {
 }
@@ -363,7 +363,7 @@ uint64_t FileSystemTemplate<FileStore, Directory>::size() const {
 }
 
 template<typename FileStore, typename Directory>
-uint8_t *FileSystemTemplate<FileStore, Directory>::buff() {
+char *FileSystemTemplate<FileStore, Directory>::buff() {
 	return m_fs.buff();
 }
 
diff --git a/deps/ox/src/ox/fs/filesystem/passthroughfs.cpp b/deps/ox/src/ox/fs/filesystem/passthroughfs.cpp
index f99f76da..17d0fc23 100644
--- a/deps/ox/src/ox/fs/filesystem/passthroughfs.cpp
+++ b/deps/ox/src/ox/fs/filesystem/passthroughfs.cpp
@@ -28,7 +28,8 @@ std::string PassThroughFS::basePath() {
 Error PassThroughFS::mkdir(const char *path, bool recursive) {
 	bool success = false;
 	const auto p = m_path / stripSlash(path);
-	oxTrace("ox::fs::PassThroughFS::mkdir") << p.c_str();
+	const auto u8p = p.u8string();
+	oxTrace("ox::fs::PassThroughFS::mkdir") << u8p.c_str();
 	if (recursive) {
 		success = std::filesystem::create_directories(p);
 	} else {
@@ -140,7 +141,7 @@ uint64_t PassThroughFS::size() const {
 	return s.capacity;
 }
 
-uint8_t *PassThroughFS::buff() {
+char *PassThroughFS::buff() {
 	return nullptr;
 }
 
diff --git a/deps/ox/src/ox/fs/filesystem/passthroughfs.hpp b/deps/ox/src/ox/fs/filesystem/passthroughfs.hpp
index 1c00313b..ff5464ce 100644
--- a/deps/ox/src/ox/fs/filesystem/passthroughfs.hpp
+++ b/deps/ox/src/ox/fs/filesystem/passthroughfs.hpp
@@ -72,7 +72,7 @@ class PassThroughFS: public FileSystem {
 
 		uint64_t size() const override;
 
-		uint8_t *buff() override;
+		char *buff() override;
 
 		ox::Error walk(Error(*cb)(uint8_t, uint64_t, uint64_t)) override;
 
@@ -89,9 +89,8 @@ class PassThroughFS: public FileSystem {
 template<typename F>
 ox::Error PassThroughFS::ls(const char *dir, F cb) {
 	for (auto &p : std::filesystem::directory_iterator(m_path / stripSlash(dir))) {
-		if (auto err = cb(p.path().filename().c_str(), 0); err) {
-			return err;
-		}
+		auto u8p = p.path().filename().u8string();
+		oxReturnError(cb(u8p.c_str(), 0));
 	}
 	return OxError(0);
 }
diff --git a/deps/ox/src/ox/mc/presenceindicator.cpp b/deps/ox/src/ox/mc/presenceindicator.cpp
index f9e4292c..b3e7c367 100644
--- a/deps/ox/src/ox/mc/presenceindicator.cpp
+++ b/deps/ox/src/ox/mc/presenceindicator.cpp
@@ -17,7 +17,7 @@ FieldPresenceIndicator::FieldPresenceIndicator(uint8_t *mask, std::size_t maxLen
 	m_maskLen = maxLen;
 }
 
-ValErr<bool> FieldPresenceIndicator::get(int i) const {
+ValErr<bool> FieldPresenceIndicator::get(std::size_t i) const {
 	if (i / 8 < m_maskLen) {
 		return (m_mask[i / 8] >> (i % 8)) & 1;
 	} else {
@@ -25,7 +25,7 @@ ValErr<bool> FieldPresenceIndicator::get(int i) const {
 	}
 }
 
-Error FieldPresenceIndicator::set(int i, bool on) {
+Error FieldPresenceIndicator::set(std::size_t i, bool on) {
 	if (i / 8 < m_maskLen) {
 		if (on) {
 			m_mask[i / 8] |= 1 << (i % 8);
diff --git a/deps/ox/src/ox/mc/presenceindicator.hpp b/deps/ox/src/ox/mc/presenceindicator.hpp
index 8e8c991a..1a9fbeb1 100644
--- a/deps/ox/src/ox/mc/presenceindicator.hpp
+++ b/deps/ox/src/ox/mc/presenceindicator.hpp
@@ -16,15 +16,15 @@ namespace ox {
 class FieldPresenceIndicator {
 	private:
 		uint8_t *m_mask = nullptr;
-		int m_maskLen = 0;
-		int m_fields = 0;
+		std::size_t m_maskLen = 0;
+		std::size_t m_fields = 0;
 
 	public:
 		FieldPresenceIndicator(uint8_t *mask, std::size_t maxLen);
 
-		ValErr<bool> get(int i) const;
+		ValErr<bool> get(std::size_t i) const;
 
-		Error set(int i, bool on);
+		Error set(std::size_t i, bool on);
 
 		void setFields(int) noexcept;
 
diff --git a/deps/ox/src/ox/std/assert.cpp b/deps/ox/src/ox/std/assert.cpp
index e2713cc3..8cba5ffe 100644
--- a/deps/ox/src/ox/std/assert.cpp
+++ b/deps/ox/src/ox/std/assert.cpp
@@ -34,12 +34,12 @@ void assertFunc<bool>([[maybe_unused]]const char *file, [[maybe_unused]]int line
 template<>
 void assertFunc<Error>(const char *file, int line, Error err, const char *msg) {
 	if (err) {
-		panic(file, line, err, msg);
+		panic(file, line, msg, err);
 	}
 }
 
-void panic([[maybe_unused]]const char *file, [[maybe_unused]]int line, [[maybe_unused]]Error err, [[maybe_unused]]const char *msg) {
 #if defined(OX_USE_STDLIB)
+void panic(const char *file, int line, const char *msg, Error err) {
 	std::cerr << "\033[31;1;1mPANIC:\033[0m (" << file << ':' << line << "): " << msg << '\n';
 	std::cerr <<  "\tError Code:\t" << err << '\n';
 	if (err.file != nullptr) {
@@ -48,7 +48,7 @@ void panic([[maybe_unused]]const char *file, [[maybe_unused]]int line, [[maybe_u
 	printStackTrace(2);
 	oxTrace("assert").del("") << "Failed assert: " << msg << " (" << file << ":" << line << ")";
 	std::abort();
-#endif
 }
+#endif
 
 }
diff --git a/deps/ox/src/ox/std/assert.hpp b/deps/ox/src/ox/std/assert.hpp
index 424bf697..fd7e19f8 100644
--- a/deps/ox/src/ox/std/assert.hpp
+++ b/deps/ox/src/ox/std/assert.hpp
@@ -23,14 +23,14 @@ void assertFunc<bool>(const char *file, int line, bool pass, const char *msg);
 template<>
 void assertFunc<Error>(const char *file, int line, Error err, const char*);
 
-void panic([[maybe_unused]]const char *file, [[maybe_unused]]int line, [[maybe_unused]]Error err, [[maybe_unused]]const char *msg);
+void panic([[maybe_unused]]const char *file, [[maybe_unused]]int line, [[maybe_unused]]const char *msg, [[maybe_unused]]Error err = OxError(0));
 
 }
 
+#define oxPanic(pass, msg) ox::panic(__FILE__, __LINE__, pass, msg)
 #ifndef NDEBUG
 #define oxAssert(pass, msg) ox::assertFunc<decltype(pass)>(__FILE__, __LINE__, pass, msg)
-#define oxPanic(pass, msg) ox::panic(__FILE__, __LINE__, pass, msg)
 #else
-#define oxAssert(pass, msg)
-#define oxPanic(pass, msg)
+inline void oxAssert(bool, const char*) {}
+inline void oxAssert(ox::Error, const char*) {}
 #endif
diff --git a/deps/ox/src/ox/std/error.hpp b/deps/ox/src/ox/std/error.hpp
index 6f157491..9ab7a6fa 100644
--- a/deps/ox/src/ox/std/error.hpp
+++ b/deps/ox/src/ox/std/error.hpp
@@ -18,10 +18,6 @@
 #define OxError(x) static_cast<ox::Error>(x)
 #endif
 
-#define oxIgnoreError(x)
-#define oxReturnError(x) if (const auto _ox_error = ox::error::toError(x)) return _ox_error
-#define oxThrowError(x) if (const auto _ox_error = ox::error::toError(x)) throw _ox_error
-
 namespace ox {
 
 struct BaseError {
@@ -95,3 +91,7 @@ template<typename T>
 
 }
 
+inline void oxIgnoreError(ox::Error) {}
+#define oxReturnError(x) if (const auto _ox_error = ox::error::toError(x)) return _ox_error
+#define oxThrowError(x) if (const auto _ox_error = ox::error::toError(x)) throw _ox_error
+
diff --git a/deps/ox/src/ox/std/hardware.hpp b/deps/ox/src/ox/std/hardware.hpp
index 16d54a3f..a1426fca 100644
--- a/deps/ox/src/ox/std/hardware.hpp
+++ b/deps/ox/src/ox/std/hardware.hpp
@@ -22,7 +22,7 @@
 
 #else
 
-#warn "Undefined hardware"
+#error "Undefined hardware"
 
 #endif
 
diff --git a/deps/ox/src/ox/std/stddef.hpp b/deps/ox/src/ox/std/stddef.hpp
index 1a41f50c..d9c43035 100644
--- a/deps/ox/src/ox/std/stddef.hpp
+++ b/deps/ox/src/ox/std/stddef.hpp
@@ -8,7 +8,7 @@
 
 #pragma once
 
-#if OX_USE_STDLIB
+#ifdef OX_USE_STDLIB
 #include <cstddef>
 #else
 #define offsetof(type, member) __builtin_offsetof(type, member)
diff --git a/deps/ox/src/ox/std/strops.hpp b/deps/ox/src/ox/std/strops.hpp
index c4537081..4d17351f 100644
--- a/deps/ox/src/ox/std/strops.hpp
+++ b/deps/ox/src/ox/std/strops.hpp
@@ -96,7 +96,7 @@ template<typename T1, typename T2>
 	int retval = -1;
 	for (std::size_t i = 0; i < maxLen && str[i]; i++) {
 		if (str[i] == character) {
-			retval = i;
+			retval = static_cast<int>(i);
 		}
 	}
 	return retval;
@@ -106,7 +106,7 @@ template<typename T1, typename T2>
 	int retval = -1;
 	for (std::size_t i = 0; i < maxLen && str[i]; i++) {
 		if (str[i] == character) {
-			retval = i;
+			retval = static_cast<int>(i);
 		}
 	}
 	return retval;
diff --git a/deps/ox/src/ox/std/trace.cpp b/deps/ox/src/ox/std/trace.cpp
index 4811d167..49386a5e 100644
--- a/deps/ox/src/ox/std/trace.cpp
+++ b/deps/ox/src/ox/std/trace.cpp
@@ -10,7 +10,6 @@
 #include <iomanip>
 #include <iostream>
 #include <stdio.h>
-#include <unistd.h>
 #endif
 
 #include "trace.hpp"
diff --git a/src/nostalgia/CMakeLists.txt b/src/nostalgia/CMakeLists.txt
index 870af9e7..02b66140 100644
--- a/src/nostalgia/CMakeLists.txt
+++ b/src/nostalgia/CMakeLists.txt
@@ -2,6 +2,7 @@
 #setup libraries
 
 if(NOSTALGIA_BUILD_TYPE STREQUAL "Native")
+	find_package(SDL2 CONFIG REQUIRED)
 	if(NOSTALGIA_BUILD_STUDIO)
 		find_package(Qt5Widgets REQUIRED)
 		find_package(Qt5QuickWidgets REQUIRED)
diff --git a/src/nostalgia/core/CMakeLists.txt b/src/nostalgia/core/CMakeLists.txt
index 41701a34..b7b6e6b3 100644
--- a/src/nostalgia/core/CMakeLists.txt
+++ b/src/nostalgia/core/CMakeLists.txt
@@ -2,6 +2,7 @@ add_library(
 	NostalgiaCore
 		core.cpp
 		gfx.cpp
+		media.cpp
 )
 
 target_link_libraries(
@@ -9,9 +10,8 @@ target_link_libraries(
 		OxFS
 )
 
-if(NOSTALGIA_BUILD_TYPE STREQUAL "GBA")
-	add_subdirectory(gba)
-elseif(NOSTALGIA_BUILD_TYPE STREQUAL "Native")
+add_subdirectory(gba)
+if(NOSTALGIA_BUILD_TYPE STREQUAL "Native")
 	add_subdirectory(sdl)
 	add_subdirectory(userland)
 endif()
diff --git a/src/nostalgia/core/core.cpp b/src/nostalgia/core/core.cpp
index 131178ec..f536680a 100644
--- a/src/nostalgia/core/core.cpp
+++ b/src/nostalgia/core/core.cpp
@@ -12,10 +12,7 @@
 namespace nostalgia::core {
 
 ox::Error init(Context *ctx) {
-	auto err = OxError(0);
-	err = initGfx(ctx);
-	initHeap(); // this does nothing in userland builds
-	return err;
+	return initGfx(ctx);
 }
 
 }
diff --git a/src/nostalgia/core/gba/CMakeLists.txt b/src/nostalgia/core/gba/CMakeLists.txt
index e5a80d68..678f9434 100644
--- a/src/nostalgia/core/gba/CMakeLists.txt
+++ b/src/nostalgia/core/gba/CMakeLists.txt
@@ -1,23 +1,35 @@
-add_library(
-	NostalgiaCore-GBA
-		core.cpp
-		gfx.cpp
-		media.cpp
-		mem.cpp
-		panic.cpp
-)
-
-target_link_libraries(
-	NostalgiaCore-GBA PUBLIC
-		NostalgiaCore
-		GbaStartup
-		OxFS
-		OxStd
-)
-
-install(
-	TARGETS
+if(NOSTALGIA_BUILD_TYPE STREQUAL "GBA")
+	add_library(
 		NostalgiaCore-GBA
-	DESTINATION
-		include/nostalgia/core
-)
+			core.cpp
+			gfx.cpp
+			media.cpp
+			mem.cpp
+			panic.cpp
+	)
+
+	target_link_libraries(
+		NostalgiaCore-GBA PUBLIC
+			NostalgiaCore
+			GbaStartup
+			OxFS
+			OxStd
+	)
+
+	install(
+		TARGETS
+			NostalgiaCore-GBA
+		DESTINATION
+			include/nostalgia/core
+	)
+endif()
+
+# tests
+if(NOSTALGIA_BUILD_TYPE STREQUAL "Native")
+	add_executable(NostalgiaCore-GBA_Test
+		tests.cpp
+		mem.cpp
+	)
+	target_link_libraries(NostalgiaCore-GBA_Test NostalgiaCore)
+	add_test("NostalgiaCore-GBA\\ Test\\ malloc" NostalgiaCore-GBA_Test malloc)
+endif()
diff --git a/src/nostalgia/core/gba/addresses.hpp b/src/nostalgia/core/gba/addresses.hpp
index 6cf22c39..e126cec3 100644
--- a/src/nostalgia/core/gba/addresses.hpp
+++ b/src/nostalgia/core/gba/addresses.hpp
@@ -45,7 +45,7 @@
 typedef uint16_t BgMapTile[1024];
 #define MEM_BG_MAP reinterpret_cast<BgMapTile*>(0x06000000)
 
-#define MEM_ROM *reinterpret_cast<char*>(0x08000000)
+#define MEM_ROM reinterpret_cast<char*>(0x08000000)
 
 #define MEM_WRAM_BEGIN reinterpret_cast<uint8_t*>(0x02000000)
 #define MEM_WRAM_END   reinterpret_cast<uint8_t*>(0x0203FFFF)
diff --git a/src/nostalgia/core/gba/gfx.cpp b/src/nostalgia/core/gba/gfx.cpp
index 81678c85..5dac22da 100644
--- a/src/nostalgia/core/gba/gfx.cpp
+++ b/src/nostalgia/core/gba/gfx.cpp
@@ -14,7 +14,6 @@
 #include <nostalgia/core/gfx.hpp>
 
 #include "addresses.hpp"
-#include "panic.hpp"
 
 namespace nostalgia::core {
 
@@ -102,7 +101,7 @@ ox::Error shutdownGfx() {
 		case 3:
 			return REG_BG3CNT;
 		default:
-			panic("Looking up non-existent register");
+			oxPanic("Looking up non-existent register", OxError(1));
 			return REG_BG0CNT;
 	}
 }
diff --git a/src/nostalgia/core/gba/media.cpp b/src/nostalgia/core/gba/media.cpp
index 0719af06..c8e50db6 100644
--- a/src/nostalgia/core/gba/media.cpp
+++ b/src/nostalgia/core/gba/media.cpp
@@ -23,7 +23,7 @@ char *loadRom(const char*) {
 	constexpr auto headerP2Len = 16;
 	constexpr auto headerLen = headerP1Len + headerP2Len + 1;
 
-	for (auto current = &MEM_ROM; current < reinterpret_cast<char*>(0x0a000000); current += headerLen) {
+	for (auto current = MEM_ROM; current < reinterpret_cast<char*>(0x0a000000); current += headerLen) {
 		if (ox_memcmp(current, headerP1, headerP1Len) == 0 &&
 		    ox_memcmp(current + headerP1Len, headerP2, headerP2Len) == 0) {
 			return current + headerLen;
diff --git a/src/nostalgia/core/gba/mem.cpp b/src/nostalgia/core/gba/mem.cpp
index a2d351d3..33206430 100644
--- a/src/nostalgia/core/gba/mem.cpp
+++ b/src/nostalgia/core/gba/mem.cpp
@@ -7,11 +7,9 @@
  */
 
 #include "addresses.hpp"
-#include "ox/std/bit.hpp"
-#include "ox/std/types.hpp"
-#include "panic.hpp"
 
-#include <ox/std/std.hpp>
+#include <ox/std/assert.hpp>
+#include <ox/std/bit.hpp>
 
 // this warning is too dumb to realize that it can actually confirm the hard
 // coded address aligns with the requirement of HeapSegment, so it must be
@@ -25,6 +23,10 @@
 
 namespace nostalgia::core {
 
+static class HeapSegment *volatile g_heapBegin = nullptr;
+static class HeapSegment *volatile g_heapEnd = nullptr;
+static class HeapSegment *volatile heapIdx = nullptr;
+
 static constexpr std::size_t alignedSize(std::size_t sz) {
 	return sz + (sz & 7);
 }
@@ -38,39 +40,35 @@ struct HeapSegment {
 	std::size_t size;
 	uint8_t inUse;
 
-	void init(std::size_t maxSize = ox::bit_cast<std::size_t>(HEAP_END)) {
-		this->size = maxSize - reinterpret_cast<std::size_t>(this);
+	void init(std::size_t maxSize = ox::bit_cast<std::size_t>(g_heapEnd)) {
+		this->size = maxSize - ox::bit_cast<std::size_t>(this);
 		this->inUse = false;
 	}
 
 	template<typename T>
 	T *data() {
-		return reinterpret_cast<T*>(reinterpret_cast<uint8_t*>(this) + alignedSize(this));
+		return ox::bit_cast<T*>(ox::bit_cast<uint8_t*>(this) + alignedSize(this));
 	}
 
 	template<typename T = uint8_t>
 	T *end() {
 		const auto size = alignedSize(this) + alignedSize(this->size);
-		auto e = reinterpret_cast<uintptr_t>(reinterpret_cast<uint8_t*>(this) + size);
-		return reinterpret_cast<T*>(e);
+		auto e = ox::bit_cast<uintptr_t>(ox::bit_cast<uint8_t*>(this) + size);
+		return ox::bit_cast<T*>(e);
 	}
 
 };
 
-static HeapSegment *volatile heapIdx = nullptr;
-
-void initHeap() {
-	heapIdx = HEAP_BEGIN;
-	heapIdx->init();
+void initHeap(char *heapBegin, char *heapEnd) {
+	g_heapBegin = ox::bit_cast<HeapSegment*>(heapBegin);
+	g_heapEnd = ox::bit_cast<HeapSegment*>(heapEnd);
+	heapIdx = g_heapBegin;
+	heapIdx->size = ox::bit_cast<std::size_t>(heapEnd) - ox::bit_cast<std::size_t>(heapIdx);
+	heapIdx->inUse = false;
 }
 
-static HeapSegment *findSegmentFor(std::size_t sz) {
-	for (auto s = HEAP_BEGIN; s + sz < HEAP_END; s = s->end<HeapSegment>()) {
-		if (s->size >= sz && !s->inUse) {
-			return s;
-		}
-	}
-	return nullptr;
+void initHeap() {
+	initHeap(ox::bit_cast<char*>(HEAP_BEGIN), ox::bit_cast<char*>(HEAP_END));
 }
 
 struct SegmentPair {
@@ -90,6 +88,16 @@ static SegmentPair findSegmentOf(void *ptr) {
 	return {};
 }
 
+static HeapSegment *findSegmentFor(std::size_t sz) {
+	for (auto s = g_heapBegin; s <= g_heapEnd; s = s->end<HeapSegment>()) {
+		if (s->size >= sz && !s->inUse) {
+			return s;
+		}
+	}
+	oxPanic("malloc: could not find segment", OxError(1));
+	return nullptr;
+}
+
 [[nodiscard]] void *malloc(std::size_t allocSize) {
 	const auto targetSize = alignedSize(sizeof(HeapSegment)) + alignedSize(allocSize);
 	auto seg = findSegmentFor(targetSize);
@@ -99,9 +107,8 @@ static SegmentPair findSegmentOf(void *ptr) {
 	const auto bytesRemaining = seg->size - targetSize;
 	seg->size = targetSize;
 	seg->inUse = true;
-	auto out = seg->data<void>();
 	seg->end<HeapSegment>()->init(bytesRemaining);
-	return out;
+	return seg->data<void>();
 }
 
 void free(void *ptr) {
@@ -111,12 +118,14 @@ void free(void *ptr) {
 	} else if (p.segment) {
 		p.segment->inUse = false;
 	} else {
-		panic("Bad heap free");
+		oxPanic("Bad heap free", OxError(1));
 	}
 }
 
 }
 
+#ifndef OX_USE_STDLIB
+
 using namespace nostalgia;
 
 void *operator new(std::size_t allocSize) {
@@ -142,3 +151,13 @@ void operator delete(void *ptr, unsigned) {
 void operator delete[](void *ptr, unsigned) {
 	core::free(ptr);
 }
+
+void operator delete(void *ptr, unsigned long int) {
+	core::free(ptr);
+}
+
+void operator delete[](void *ptr, unsigned long int) {
+	core::free(ptr);
+}
+
+#endif
\ No newline at end of file
diff --git a/src/nostalgia/core/gba/panic.cpp b/src/nostalgia/core/gba/panic.cpp
index 9f6b2d07..95ab46ba 100644
--- a/src/nostalgia/core/gba/panic.cpp
+++ b/src/nostalgia/core/gba/panic.cpp
@@ -7,15 +7,21 @@
  */
 
 #include "../core.hpp"
-#include "panic.hpp"
+#include "../gfx.hpp"
 
-namespace nostalgia::core {
+namespace ox {
 
-void panic(const char *msg) {
+using namespace nostalgia::core;
+
+void panic(const char*, int, const char *msg, ox::Error err) {
+	oxIgnoreError(initGfx(nullptr));
 	oxIgnoreError(initConsole(nullptr));
+	ox::BString<23> serr = "Error code: ";
+	serr += err;
 	puts(nullptr, 32 + 0,  1, "SADNESS...");
 	puts(nullptr, 32 + 0,  4, "UNEXPECTED STATE:");
 	puts(nullptr, 32 + 2,  6, msg);
+	puts(nullptr, 32 + 2,  7, serr.c_str());
 	puts(nullptr, 32 + 0, 10, "PLEASE RESTART THE SYSTEM");
 	// TODO: properly end program execution, this wastes power
 	while (1);
diff --git a/src/nostalgia/core/gba/panic.hpp b/src/nostalgia/core/gba/panic.hpp
deleted file mode 100644
index c4373ce6..00000000
--- a/src/nostalgia/core/gba/panic.hpp
+++ /dev/null
@@ -1,16 +0,0 @@
-/*
- * Copyright 2016 - 2019 gtalent2@gmail.com
- *
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/.
- */
-
-#pragma once
-
-namespace nostalgia::core {
-
-void panic(const char *msg);
-
-}
-
diff --git a/src/nostalgia/core/gba/tests.cpp b/src/nostalgia/core/gba/tests.cpp
new file mode 100644
index 00000000..3d45eff9
--- /dev/null
+++ b/src/nostalgia/core/gba/tests.cpp
@@ -0,0 +1,50 @@
+
+#include <map>
+#include <string>
+#include <vector>
+
+#include <ox/std/std.hpp>
+
+#include <nostalgia/core/mem.hpp>
+
+namespace nostalgia::core {
+
+[[nodiscard]] void *malloc(std::size_t allocSize);
+
+void free(void *ptr);
+
+void initHeap(char *heapBegin, char *heapEnd);
+
+}
+
+using namespace nostalgia;
+
+int testMalloc(std::string) {
+    std::vector<char> buff(ox::units::MB);
+    core::initHeap(&buff.front(), &buff.back());
+    oxAssert(core::malloc(5) != nullptr, "malloc is broken");
+    oxAssert(core::malloc(5) != nullptr, "malloc is broken");
+    return 0;
+}
+
+std::map<std::string, int(*)(std::string)> tests = {
+	{
+		{ "malloc", testMalloc },
+    }
+};
+
+int main(int argc, const char **args) {
+	int retval = -1;
+	if (argc > 1) {
+		auto testName = args[1];
+		std::string testArg = "";
+		if (args[2]) {
+			testArg = args[2];
+		}
+		if (tests.find(testName) != tests.end()) {
+			retval = tests[testName](testArg);
+		}
+	}
+	return retval;
+}
+
diff --git a/src/nostalgia/core/media.cpp b/src/nostalgia/core/media.cpp
new file mode 100644
index 00000000..8eff9466
--- /dev/null
+++ b/src/nostalgia/core/media.cpp
@@ -0,0 +1,31 @@
+/*
+ * Copyright 2016 - 2020 gtalent2@gmail.com
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include "media.hpp"
+
+namespace nostalgia::core {
+
+ox::FileSystem *loadRomFs(const char *path) {
+	const auto lastDot = ox_lastIndexOf(path, '.');
+	const auto fsExt = lastDot != -1 ? path + lastDot : "";
+	if (ox_strcmp(fsExt, ".oxfs") == 0) {
+		auto rom = core::loadRom(path);
+		if (!rom) {
+			return nullptr;
+		}
+		return new ox::FileSystem32(rom, 32 * ox::units::MB, unloadRom);
+	} else {
+#ifdef OX_HAS_PASSTHROUGHFS
+		return new ox::PassThroughFS(path);
+#else
+		return nullptr;
+#endif
+	}
+}
+
+}
diff --git a/src/nostalgia/core/media.hpp b/src/nostalgia/core/media.hpp
index 06bac96d..6d6ccb9c 100644
--- a/src/nostalgia/core/media.hpp
+++ b/src/nostalgia/core/media.hpp
@@ -8,10 +8,12 @@
 
 #pragma once
 
-#include <ox/std/types.hpp>
+#include <ox/fs/fs.hpp>
 
 namespace nostalgia::core {
 
+ox::FileSystem *loadRomFs(const char *path);
+
 char *loadRom(const char *path = "");
 
 void unloadRom(char*);
diff --git a/src/nostalgia/player/main.cpp b/src/nostalgia/player/main.cpp
index d5ff48ed..cb29cdea 100644
--- a/src/nostalgia/player/main.cpp
+++ b/src/nostalgia/player/main.cpp
@@ -8,6 +8,7 @@
 
 #include <ox/fs/fs.hpp>
 #include <ox/std/units.hpp>
+#include <nostalgia/core/core.hpp>
 #include <nostalgia/world/world.hpp>
 
 using namespace nostalgia;
@@ -28,29 +29,12 @@ ox::Error run(ox::FileSystem *fs) {
 
 int main(int argc, const char **argv) {
 	if (argc > 1) {
-		ox::FileSystem *fs = nullptr;
-		char *rom = nullptr;
 		auto path = argv[1];
-		const auto lastDot = ox_lastIndexOf(path, '.');
-		const auto fsExt = lastDot != -1 ? path + lastDot : "";
-		if (ox_strcmp(fsExt, ".oxfs") == 0) {
-			rom = core::loadRom(path);
-			if (!rom) {
-				return 1;
-			}
-			fs = new (ox_alloca(sizeof(ox::FileStore32))) ox::FileSystem32(ox::FileStore32(rom, 32 * ox::units::MB));
-		} else {
-#ifdef OX_HAS_PASSTHROUGHFS
-			fs = new (ox_alloca(sizeof(ox::PassThroughFS))) ox::PassThroughFS(path);
-#else
-			return 2;
-#endif
-		}
+		auto fs = core::loadRomFs(path);
 		auto err = run(fs);
 		oxAssert(err, "Something went wrong...");
-		fs->~FileSystem();
-		core::unloadRom(rom);
+		delete fs;
 		return err;
 	}
-	return 3;
+	return 1;
 }
diff --git a/src/nostalgia/tools/pack.cpp b/src/nostalgia/tools/pack.cpp
index faa352b4..707bf446 100644
--- a/src/nostalgia/tools/pack.cpp
+++ b/src/nostalgia/tools/pack.cpp
@@ -6,8 +6,6 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
  */
 
-#include <stdio.h>
-
 #include <fstream>
 #include <iostream>
 #include <vector>
@@ -54,7 +52,7 @@ int main(int argc, const char **args) {
 	try {
 		run(ox::ClArgs(argc, args));
 	} catch (const ox::Error &err) {
-		oxPanic(err, "pack failed");
+		oxPanic("pack failed", err);
 		std::cerr << "pack failed...\n";
 		return static_cast<int>(err);
 	}
diff --git a/src/nostalgia/tools/pack/pack.cpp b/src/nostalgia/tools/pack/pack.cpp
index 23270f90..8d51d99a 100644
--- a/src/nostalgia/tools/pack/pack.cpp
+++ b/src/nostalgia/tools/pack/pack.cpp
@@ -78,7 +78,7 @@ struct VerificationPair {
 	std::cout << "copying directory: " << path << '\n';
 	std::vector<VerificationPair> verficationPairs;
 	// copy
-	oxReturnError(src->ls(path.c_str(), [&verficationPairs, src, dest, path](const char *name, ox::InodeId_t) {
+	oxReturnError(src->ls(path.c_str(), [&verficationPairs, src, dest, path](std::string name, ox::InodeId_t) {
 		std::cout << "reading " << name << '\n';
 		auto currentFile = path + name;
 		auto [stat, err] = src->stat((currentFile).c_str());