diff --git a/BOOT/ENVIRON/APP/BOOTMGR/EFI/efientry.c b/BOOT/ENVIRON/APP/BOOTMGR/EFI/efientry.c
new file mode 100644
index 0000000..47aece5
--- /dev/null
+++ b/BOOT/ENVIRON/APP/BOOTMGR/EFI/efientry.c
@@ -0,0 +1,60 @@
+/*++
+
+Copyright (c) 2024, the LibreXP developers.
+Provided under the BSD 3-Clause license.
+
+Module Name:
+
+   entry.c
+
+Abstract:
+
+   Boot manager entry point on EFI systems.
+
+--*/
+
+#include "bootmgr.h"
+
+EFI_STATUS
+EFIAPI
+EfiEntry (
+    IN EFI_HANDLE ImageHandle,
+    IN EFI_SYSTEM_TABLE *SystemTable
+    )
+
+/*++
+
+Routine Description:
+
+    Boot manager entry point from EFI firmware.
+
+Arguments:
+
+    ImageHandle - Handle for the boot manager image.
+
+    SystemTable - Pointer to the EFI system table.
+
+Return Value:
+
+    EFI_SUCCESS if successful.
+    EFI_INVALID_PARAMEER if input parameter structure creation fails.
+    Any other value defined in efierr.h.
+
+--*/
+
+{
+    PBOOT_APPLICATION_PARAMETERS InputParameters;
+
+    //
+    // Create firmware-independent input structure from EFI parameters.
+    //
+    InputParameters = EfiInitCreateInputParameters(ImageHandle, SystemTable);
+    if (InputParameters == NULL) {
+        return EFI_INVALID_PARAMETER;
+    }
+
+    //
+    // Transfer control to the firmware-independent boot manager.
+    //
+    return EfiGetEfiStatusCode(BmMain(InputParameters));
+}
diff --git a/BOOT/ENVIRON/APP/BOOTMGR/bootmgr.c b/BOOT/ENVIRON/APP/BOOTMGR/bootmgr.c
new file mode 100644
index 0000000..c22b296
--- /dev/null
+++ b/BOOT/ENVIRON/APP/BOOTMGR/bootmgr.c
@@ -0,0 +1,44 @@
+/*++
+
+Copyright (c) 2024, the LibreXP developers.
+Provided under the BSD 3-Clause license.
+
+Module Name:
+
+   bootmgr.c
+
+Abstract:
+
+   Main functions of the boot manager.
+
+--*/
+
+#include "bootmgr.h"
+
+NTSTATUS
+BmMain (
+    IN PBOOT_APPLICATION_PARAMETERS Parameters
+    )
+
+/*++
+
+Routine Description:
+
+    Firmware-independent boot manager entry point.
+
+Arguments:
+
+    Parameters - Input parameters for the boot manager.
+
+Return Value:
+
+    Error code on failure.
+    Does not return on success, as control is transferred to the OS loader.
+
+--*/
+
+{
+    /* TODO: Implement BmMain() */
+
+    return STATUS_SUCCESS;
+}
diff --git a/BOOT/ENVIRON/INC/AMD64/efibind.h b/BOOT/ENVIRON/INC/AMD64/efibind.h
new file mode 100644
index 0000000..d9ffdeb
--- /dev/null
+++ b/BOOT/ENVIRON/INC/AMD64/efibind.h
@@ -0,0 +1,76 @@
+/*++
+
+Copyright (c) 2024, the LibreXP developers.
+Provided under the BSD 3-Clause license.
+
+Module Name:
+
+   efibind.h
+
+Abstract:
+
+   Provides definitions specific to AMD64 EFI systems.
+
+--*/
+
+#if defined(_MSC_EXTENSIONS)
+    typedef unsigned __int64 uint64_t;
+    typedef __int64 int64_t;
+    typedef unsigned __int32 uint32_t;
+    typedef __int32 int32_t;
+    typedef unsigned __int16 uint16_t;
+    typedef __int16 int16_t;
+    typedef unsigned __int8 uint8_t;
+    typedef __int8 int8_t;
+#elif defined(UNIX_LP64)
+    typedef unsigned long uint64_t;
+    typedef long int64_t;
+    typedef unsigned int uint32_t;
+    typedef int int32_t;
+    typedef unsigned short uint16_t;
+    typedef short int16_t;
+    typedef unsigned char uint8_t;
+    typedef char int8_t;
+#else
+    typedef unsigned long long uint64_t;
+    typedef long long int64_t;
+    typedef unsigned int uint32_t;
+    typedef int int32_t;
+    typedef unsigned short uint16_t;
+    typedef short int16_t;
+    typedef unsigned char uint8_t;
+    typedef char int8_t;
+#endif
+
+typedef uint64_t UINT64;
+typedef int64_t INT64;
+typedef uint32_t UINT32;
+typedef int32_t INT32;
+typedef uint16_t UINT16;
+typedef int16_t INT16;
+typedef uint8_t UINT8;
+typedef int8_t INT8;
+
+typedef int64_t INTN;
+typedef uint64_t UINTN;
+
+#define EFI_ERROR_MASK     0x8000000000000000
+#define EFI_ERROR_MASK_OEM 0xc000000000000000
+#define EFIERR(e)     (EFI_ERROR_MASK | e)
+#define EFIERR_OEM(e) (EFI_ERROR_MASK_OEM | e)
+
+#ifndef EFIAPI
+#if defined(_MSC_EXTENSIONS)
+    #define EFIAPI __cdecl
+#else
+    #define EFIAPI __attribute__((ms_abi))
+#endif
+#endif
+
+#define VOLATILE volatile
+
+#if defined(__GNUC__) || defined(_MSC_EXTENSIONS)
+#define INTERFACE_DECL(n) struct n
+#else
+#define INTERFACE_DECL(n) typedef struct n
+#endif
diff --git a/BOOT/ENVIRON/INC/efi.h b/BOOT/ENVIRON/INC/efi.h
new file mode 100644
index 0000000..b2fd08c
--- /dev/null
+++ b/BOOT/ENVIRON/INC/efi.h
@@ -0,0 +1,32 @@
+/*++
+
+Copyright (c) 2024, the LibreXP developers.
+Provided under the BSD 3-Clause license.
+
+Module Name:
+
+   efi.h
+
+Abstract:
+
+   Provides EFI header files.
+
+--*/
+
+#ifndef _EFI_H
+#define _EFI_H
+
+#if defined(__x86_64__)
+#include "AMD64/efibind.h"
+#else
+#error Unsupported architecture
+#endif
+
+#include "efidef.h"
+#include "efidevp.h"
+#include "efiprot.h"
+#include "eficon.h"
+#include "efiapi.h"
+#include "efierr.h"
+
+#endif
diff --git a/BOOT/ENVIRON/INC/efiapi.h b/BOOT/ENVIRON/INC/efiapi.h
new file mode 100644
index 0000000..629447e
--- /dev/null
+++ b/BOOT/ENVIRON/INC/efiapi.h
@@ -0,0 +1,236 @@
+/*++
+
+Copyright (c) 2024, the LibreXP developers.
+Provided under the BSD 3-Clause license.
+
+Module Name:
+
+   efiapi.h
+
+Abstract:
+
+   Provides EFI API definitions.
+
+--*/
+
+#ifndef _EFIAPI_H
+#define _EFIAPI_H
+
+#define EFI_SPECIFICATION_MAJOR_REVISION 1
+#define EFI_SPECIFICATION_MINOR_REVISION 02
+#define EFI_SPECIFICATION_VERSION ((EFI_SPECIFICATION_MAJOR_REVISION << 16) || EFI_SPECIFICATION_MINOR_REVISION)
+
+INTERFACE_DECL(_EFI_SYSTEM_TABLE);
+
+/*
+ * Loaded image protocol definitions.
+ */
+
+typedef
+EFI_STATUS
+(EFIAPI *EFI_IMAGE_UNLOAD) (
+    IN EFI_HANDLE ImageHandle
+    );
+
+#define EFI_LOADED_IMAGE_PROTOCOL_GUID \
+    { 0x5b1b31a1, 0x9562, 0x11d2, { 0x8e, 0x3f, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b } }
+#define LOADED_IMAGE_PROTOCOL EFI_LOADED_IMAGE_PROTOCOL_GUID
+
+#define EFI_IMAGE_INFORMATION_REVISION 0x1000
+
+typedef struct {
+    UINT32 Revision;
+    EFI_HANDLE ParentHandle;
+    struct _EFI_SYSTEM_TABLE *SystemTable;
+
+    EFI_HANDLE DeviceHandle;
+    EFI_DEVICE_PATH *FilePath;
+    VOID *Reserved;
+
+    UINT32 LoadOptionsSize;
+    VOID *LoadOptions;
+
+    VOID *ImageBase;
+    UINT64 ImageSize;
+    EFI_MEMORY_TYPE ImageCodeType;
+    EFI_MEMORY_TYPE ImageDataType;
+
+    EFI_IMAGE_UNLOAD Unload;
+} EFI_LOADED_IMAGE;
+
+/*
+ * EFI table header.
+ */
+
+typedef struct _EFI_TABLE_HEADER {
+    UINT64 Signature;
+    UINT32 Revision;
+    UINT32 HeaderSize;
+    UINT32 CRC32;
+    UINT32 Reserved;
+} EFI_TABLE_HEADER;
+
+/*
+ * EFI runtime services table definitions.
+ */
+
+#define EFI_RUNTIME_SERVICES_SIGNATURE 0x56524553544e5552
+#define EFI_RUNTIME_SERVICES_REVISION  EFI_SPECIFICATION_VERSION
+
+typedef struct {
+    EFI_TABLE_HEADER Hdr;
+
+    EFI_HANDLE GetTime;
+    EFI_HANDLE SetTime;
+    EFI_HANDLE GetWakeupTime;
+    EFI_HANDLE SetWakeupTime;
+
+    EFI_HANDLE SetVirtualAddressMap;
+    EFI_HANDLE ConvertPointer;
+
+    EFI_HANDLE GetVariable;
+    EFI_HANDLE GetNextVariableName;
+    EFI_HANDLE SetVariable;
+
+    EFI_HANDLE GetNextHighMonotonicCount;
+    EFI_HANDLE ResetSystem;
+
+    EFI_HANDLE UpdateCapsule;
+    EFI_HANDLE QueryCapsuleCapabilities;
+    EFI_HANDLE QueryVariableInfo;
+} EFI_RUNTIME_SERVICES;
+
+/*
+ * EFI boot services table definitions.
+ */
+
+#define EFI_BOOT_SERVICES_SIGNATURE 0x56524553544f4f42
+#define EFI_BOOT_SERVICES_REVISION  EFI_SPECIFICATION_VERSION
+
+typedef
+EFI_STATUS
+(EFIAPI *EFI_HANDLE_PROTOCOL) (
+    IN EFI_HANDLE Handle,
+    IN EFI_GUID *Protocol,
+    OUT VOID **Interface
+    );
+
+typedef struct _EFI_BOOT_SERVICES {
+    EFI_TABLE_HEADER Hdr;
+
+    EFI_HANDLE RaiseTPL;
+    EFI_HANDLE RestoreTPL;
+
+    EFI_HANDLE AllocatePages;
+    EFI_HANDLE FreePages;
+    EFI_HANDLE GetMemoryMap;
+    EFI_HANDLE AllocatePool;
+    EFI_HANDLE FreePool;
+
+    EFI_HANDLE CreateEvent;
+    EFI_HANDLE SetTimer;
+    EFI_HANDLE WaitForEvent;
+    EFI_HANDLE SignalEvent;
+    EFI_HANDLE CloseEvent;
+    EFI_HANDLE CheckEvent;
+
+    EFI_HANDLE InstallProtocolInterface;
+    EFI_HANDLE ReinstallProtocolInterface;
+    EFI_HANDLE UninstallProtocolInterface;
+    EFI_HANDLE_PROTOCOL HandleProtocol;
+    EFI_HANDLE AlternateHandleProtocol;
+    EFI_HANDLE RegisterProtocolNotify;
+    EFI_HANDLE LocateHandle;
+    EFI_HANDLE LocateDevicePath;
+    EFI_HANDLE InstallConfigurationTable;
+
+    EFI_HANDLE LoadImage;
+    EFI_HANDLE StartImage;
+    EFI_HANDLE Exit;
+    EFI_HANDLE UnloadImage;
+    EFI_HANDLE ExitBootServices;
+
+    EFI_HANDLE GetNextHighMonotonicCount;
+    EFI_HANDLE Stall;
+    EFI_HANDLE SetWatchdogTimer;
+
+    EFI_HANDLE ConnectController;
+    EFI_HANDLE DisconnectController;
+
+    EFI_HANDLE OpenProtocol;
+    EFI_HANDLE CloseProtocol;
+    EFI_HANDLE OpenProtocolInformation;
+
+    EFI_HANDLE ProtocolsPerHandle;
+    EFI_HANDLE LocateHandleBuffer;
+    EFI_HANDLE LocateProtocol;
+    EFI_HANDLE InstallMultipleProtocolInterfaces;
+    EFI_HANDLE UninstallMultipleProtocolInterfaces;
+
+    EFI_HANDLE CalculateCrc32;
+
+    EFI_HANDLE CopyMem;
+    EFI_HANDLE SetMem;
+    EFI_HANDLE CreateEventEx;
+} EFI_BOOT_SERVICES;
+
+/*
+ * EFI configuration table definitions.
+ */
+
+#define MPS_TABLE_GUID \
+    { 0xeb9d2d2f, 0x2d88, 0x11d3, { 0x9a, 0x16, 0x0, 0x90, 0x27, 0x3f, 0xc1, 0x4d } }
+
+#define ACPI_TABLE_GUID \
+    { 0x8868e871, 0xe4f1, 0x11d3, { 0xbc, 0x22, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81 } }
+
+#define ACPI_20_TABLE_GUID \
+    { 0x8868e871, 0xe4f1, 0x11d3, { 0xbc, 0x22, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81 } }
+
+#define SMBIOS_TABLE_GUID \
+    { 0xeb9d2d31, 0x2d88, 0x11d3, { 0x9a, 0x16, 0x0, 0x90, 0x27, 0x3f, 0xc1, 0x4d } }
+
+#define SMBIOS3_TABLE_GUID \
+    { 0xf2fd1544, 0x9794, 0x4a2c, { 0x99, 0x2e, 0xe5, 0xbb, 0xcf, 0x20, 0xe3, 0x94 } }
+
+#define SAL_SYSTEM_TABLE_GUID \
+    { 0xeb9d2d32, 0x2d88, 0x11d3, { 0x9a, 0x16, 0x0, 0x90, 0x27, 0x3f, 0xc1, 0x4d } }
+
+#define EFI_DTB_TABLE_GUID \
+    { 0xb1b621d5, 0xf19c, 0x41a5, { 0x83, 0x0b, 0xd9, 0x15, 0x2c, 0x69, 0xaa, 0xe0 } }
+
+typedef struct _EFI_CONFIGURATION_TABLE {
+    EFI_GUID VendorGuid;
+    VOID *VendorTable;
+} EFI_CONFIGURATION_TABLE;
+
+/*
+ * EFI system table definitions.
+ */
+
+#define EFI_SYSTEM_TABLE_SIGNATURE 0x5453595320494249
+#define EFI_SYSTEM_TABLE_REVISION  EFI_SPECIFICATION_VERSION
+
+typedef struct _EFI_SYSTEM_TABLE {
+    EFI_TABLE_HEADER Hdr;
+
+    CHAR16 *FirmwareVendor;
+    UINT32 FirmwareRevision;
+
+    EFI_HANDLE ConsoleInHandle;
+    SIMPLE_INPUT_INTERFACE *ConIn;
+
+    EFI_HANDLE ConsoleOutHandle;
+    SIMPLE_TEXT_OUTPUT_INTERFACE *ConOut;
+
+    EFI_HANDLE StandardErrorHandle;
+    SIMPLE_TEXT_OUTPUT_INTERFACE *StdErr;
+
+    EFI_RUNTIME_SERVICES *RuntimeServices;
+    EFI_BOOT_SERVICES *BootServices;
+
+    UINTN NumberOfTableEntries;
+    EFI_CONFIGURATION_TABLE *ConfigurationTable;
+} EFI_SYSTEM_TABLE;
+
+#endif
diff --git a/BOOT/ENVIRON/INC/eficon.h b/BOOT/ENVIRON/INC/eficon.h
new file mode 100644
index 0000000..6710196
--- /dev/null
+++ b/BOOT/ENVIRON/INC/eficon.h
@@ -0,0 +1,308 @@
+/*++
+
+Copyright (c) 2024, the LibreXP developers.
+Provided under the BSD 3-Clause license.
+
+Module Name:
+
+   eficon.h
+
+Abstract:
+
+   Provides EFI console protocol definitions.
+
+--*/
+
+#ifndef _EFICON_H
+#define _EFICON_H
+
+/*
+ * Text output protocol definitions.
+ */
+
+INTERFACE_DECL(_SIMPLE_TEXT_OUTPUT_INTERFACE);
+
+#define EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL_GUID \
+    { 0x387477c2, 0x69c7, 0x11d2, { 0x8e, 0x39, 0x0, 0xa0, 0xc9, 0x69, 0x72, 0x3b } }
+#define SIMPLE_TEXT_OUTPUT_PROTOCOL EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL_GUID
+
+typedef
+EFI_STATUS
+(EFIAPI *EFI_TEXT_RESET) (
+    IN struct _SIMPLE_TEXT_OUTPUT_INTERFACE *This,
+    IN BOOLEAN ExtendedVerification
+    );
+
+typedef
+EFI_STATUS
+(EFIAPI *EFI_TEXT_OUTPUT_STRING) (
+    IN struct _SIMPLE_TEXT_OUTPUT_INTERFACE *This,
+    IN CHAR16 *String
+    );
+
+typedef
+EFI_STATUS
+(EFIAPI *EFI_TEXT_TEST_STRING) (
+    IN struct _SIMPLE_TEXT_OUTPUT_INTERFACE *This,
+    IN CHAR16 *String
+    );
+
+/*
+ * Text attribute definitions.
+ */
+
+typedef
+EFI_STATUS
+(EFIAPI *EFI_TEXT_SET_ATTRIBUTE) (
+    IN struct _SIMPLE_TEXT_OUTPUT_INTERFACE *This,
+    IN UINTN Attribute
+    );
+
+#define EFI_TEXT_ATTR(f,b) ((f) | ((b) << 4))
+
+#define EFI_BLACK        0x00
+#define EFI_BLUE         0x01
+#define EFI_GREEN        0x02
+#define EFI_RED          0x04
+#define EFI_BRIGHT       0x08
+#define EFI_CYAN         (EFI_BLUE | EFI_GREEN)
+#define EFI_MAGENTA      (EFI_BLUE | EFI_RED)
+#define EFI_BROWN        (EFI_GREEN | EFI_RED)
+#define EFI_LIGHTGRAY    (EFI_BLUE | EFI_GREEN | EFI_RED)
+#define EFI_DARKGRAY     (EFI_BRIGHT)
+#define EFI_LIGHTBLUE    (EFI_BLUE | EFI_BRIGHT)
+#define EFI_LIGHTGREEN   (EFI_GREEN | EFI_BRIGHT)
+#define EFI_LIGHTCYAN    (EFI_CYAN | EFI_BRIGHT)
+#define EFI_LIGHTRED     (EFI_RED | EFI_BRIGHT)
+#define EFI_LIGHTMAGENTA (EFI_MAGENTA | EFI_BRIGHT)
+#define EFI_YELLOW       (EFI_BROWN | EFI_BRIGHT)
+#define EFI_WHITE        (EFI_BLUE | EFI_GREEN | EFI_RED | EFI_BRIGHT)
+
+#define EFI_BACKGROUND_BLACK     0x00
+#define EFI_BACKGROUND_BLUE      0x10
+#define EFI_BACKGROUND_GREEN     0x20
+#define EFI_BACKGROUND_RED       0x40
+#define EFI_BACKGROUND_CYAN      (EFI_BACKGROUND_BLUE | EFI_BACKGROUND_GREEN)
+#define EFI_BACKGROUND_MAGENTA   (EFI_BACKGROUND_BLUE | EFI_BACKGROUND_RED)
+#define EFI_BACKGROUND_BROWN     (EFI_BACKGROUND_GREEN | EFI_BACKGROUND_RED)
+#define EFI_BACKGROUND_LIGHTGRAY (EFI_BACKGROUND_BLUE | EFI_BACKGROUND_GREEN | EFI_BACKGROUND_RED)
+
+/*
+ * Mode/cursor definitions.
+ */
+
+typedef
+EFI_STATUS
+(EFIAPI *EFI_TEXT_QUERY_MODE) (
+    IN struct _SIMPLE_TEXT_OUTPUT_INTERFACE *This,
+    IN UINTN ModeNumber,
+    OUT UINTN *Columns,
+    OUT UINTN *Rows
+    );
+
+typedef
+EFI_STATUS
+(EFIAPI *EFI_TEXT_SET_MODE) (
+    IN struct _SIMPLE_TEXT_OUTPUT_INTERFACE *This,
+    IN UINTN ModeNumber
+    );
+
+typedef
+EFI_STATUS
+(EFIAPI *EFI_TEXT_CLEAR_SCREEN) (
+    IN struct _SIMPLE_TEXT_OUTPUT_INTERFACE *This
+    );
+
+typedef
+EFI_STATUS
+(EFIAPI *EFI_TEXT_SET_CURSOR_POSITION) (
+    IN struct _SIMPLE_TEXT_OUTPUT_INTERFACE *This,
+    IN UINTN Column,
+    IN UINTN Row
+    );
+
+typedef
+EFI_STATUS
+(EFIAPI *EFI_TEXT_ENABLE_CURSOR) (
+    IN struct _SIMPLE_TEXT_OUTPUT_INTERFACE *This,
+    IN BOOLEAN Enable
+    );
+
+typedef struct {
+    INT32 MaxMode;
+    INT32 Mode;
+    INT32 Attribute;
+    INT32 CursorColumn;
+    INT32 CursorRow;
+    BOOLEAN CursorVisible;
+} SIMPLE_TEXT_OUTPUT_MODE;
+
+typedef struct _SIMPLE_TEXT_OUTPUT_INTERFACE {
+    EFI_TEXT_RESET Reset;
+
+    EFI_TEXT_OUTPUT_STRING OutputString;
+    EFI_TEXT_TEST_STRING   TestString;
+
+    EFI_TEXT_QUERY_MODE    QueryMode;
+    EFI_TEXT_SET_MODE      SetMode;
+    EFI_TEXT_SET_ATTRIBUTE SetAttribute;
+
+    EFI_TEXT_CLEAR_SCREEN        ClearScreen;
+    EFI_TEXT_SET_CURSOR_POSITION SetCursorPosition;
+    EFI_TEXT_ENABLE_CURSOR       EnableCursor;
+
+    SIMPLE_TEXT_OUTPUT_MODE *Mode;
+} SIMPLE_TEXT_OUTPUT_INTERFACE, EFI_SIMPLE_TEXT_OUT_PROTOCOL;
+
+/*
+ * Unicode Box Draw definitions.
+ */
+
+#define BOXDRAW_HORIZONTAL          0x2500
+#define BOXDRAW_VERTICAL            0x2502
+#define BOXDRAW_DOWN_RIGHT          0x250c
+#define BOXDRAW_DOWN_LEFT           0x2510
+#define BOXDRAW_UP_RIGHT            0x2514
+#define BOXDRAW_UP_LEFT             0x2518
+#define BOXDRAW_VERTICAL_RIGHT      0x251c
+#define BOXDRAW_VERTICAL_LEFT       0x2524
+#define BOXDRAW_DOWN_HORIZONTAL     0x252c
+#define BOXDRAW_UP_HORIZONTAL       0x2534
+#define BOXDRAW_VERTICAL_HORIZONTAL 0x253c
+
+#define BOXDRAW_DOUBLE_HORIZONTAL 0x2550
+#define BOXDRAW_DOUBLE_VERTICAL   0x2551
+#define BOXDRAW_DOWN_RIGHT_DOUBLE 0x2552
+#define BOXDRAW_DOWN_DOUBLE_RIGHT 0x2553
+#define BOXDRAW_DOUBLE_DOWN_RIGHT 0x2554
+
+#define BOXDRAW_DOWN_LEFT_DOUBLE 0x2555
+#define BOXDRAW_DOWN_DOUBLE_LEFT 0x2556
+#define BOXDRAW_DOUBLE_DOWN_LEFT 0x2557
+
+#define BOXDRAW_UP_RIGHT_DOUBLE 0x2558
+#define BOXDRAW_UP_DOUBLE_RIGHT 0x2559
+#define BOXDRAW_DOUBLE_UP_RIGHT 0x255a
+
+#define BOXDRAW_UP_LEFT_DOUBLE 0x255b
+#define BOXDRAW_UP_DOUBLE_LEFT 0x255c
+#define BOXDRAW_DOUBLE_UP_LEFT 0x255d
+
+#define BOXDRAW_VERTICAL_RIGHT_DOUBLE 0x255e
+#define BOXDRAW_VERTICAL_DOUBLE_RIGHT 0x255f
+#define BOXDRAW_DOUBLE_VERTICAL_RIGHT 0x2560
+
+#define BOXDRAW_VERTICAL_LEFT_DOUBLE 0x2561
+#define BOXDRAW_VERTICAL_DOUBLE_LEFT 0x2562
+#define BOXDRAW_DOUBLE_VERTICAL_LEFT 0x2563
+
+#define BOXDRAW_DOWN_HORIZONTAL_DOUBLE 0x2564
+#define BOXDRAW_DOWN_DOUBLE_HORIZONTAL 0x2565
+#define BOXDRAW_DOUBLE_DOWN_HORIZONTAL 0x2566
+
+#define BOXDRAW_UP_HORIZONTAL_DOUBLE 0x2567
+#define BOXDRAW_UP_DOUBLE_HORIZONTAL 0x2568
+#define BOXDRAW_DOUBLE_UP_HORIZONTAL 0x2569
+
+#define BOXDRAW_VERTICAL_HORIZONTAL_DOUBLE 0x256a
+#define BOXDRAW_VERTICAL_DOUBLE_HORIZONTAL 0x256b
+#define BOXDRAW_DOUBLE_VERTICAL_HORIZONTAL 0x256c
+
+/*
+ * Required Block Elements definitions.
+ */
+
+#define BLOCKELEMENT_FULL_BLOCK  0x2588
+#define BLOCKELEMENT_LIGHT_SHADE 0x2591
+
+/*
+ * Required Geometric Shapes definitions.
+ */
+
+#define GEOMETRICSHAPE_UP_TRIANGLE    0x25b2
+#define GEOMETRICSHAPE_RIGHT_TRIANGLE 0x25ba
+#define GEOMETRICSHAPE_DOWN_TRIANGLE  0x25bc
+#define GEOMETRICSHAPE_LEFT_TRIANGLE  0x25c4
+
+/*
+ * Required Arrow Shapes definitions.
+ */
+
+#define ARROW_UP   0x2191
+#define ARROW_DOWN 0x2193
+
+/*
+ * Text input protocol definitions.
+ */
+
+INTERFACE_DECL(_SIMPLE_INPUT_INTERFACE);
+
+#define EFI_SIMPLE_TEXT_INPUT_PROTOCOL_GUID \
+    { 0x387477c1, 0x69c7, 0x11d2, { 0x8e, 0x39, 0x0, 0xa0, 0xc9, 0x69, 0x72, 0x3b } }
+#define SIMPLE_TEXT_INPUT_PROTOCOL EFI_SIMPLE_TEXT_INPUT_PROTOCOL_GUID
+
+typedef struct {
+    UINT16 ScanCode;
+    CHAR16 UnicodeChar;
+} EFI_INPUT_KEY;
+
+/*
+ * Unicode control definitions.
+ */
+
+#define CHAR_NULL            0x0000
+#define CHAR_BACKSPACE       0x0008
+#define CHAR_TAB             0x0009
+#define CHAR_LINEFEED        0x000A
+#define CHAR_CARRIAGE_RETURN 0x000D
+
+/*
+ * Scancode definitions.
+ */
+
+#define SCAN_NULL      0x0000
+#define SCAN_UP        0x0001
+#define SCAN_DOWN      0x0002
+#define SCAN_RIGHT     0x0003
+#define SCAN_LEFT      0x0004
+#define SCAN_HOME      0x0005
+#define SCAN_END       0x0006
+#define SCAN_INSERT    0x0007
+#define SCAN_DELETE    0x0008
+#define SCAN_PAGE_UP   0x0009
+#define SCAN_PAGE_DOWN 0x000A
+#define SCAN_F1        0x000B
+#define SCAN_F2        0x000C
+#define SCAN_F3        0x000D
+#define SCAN_F4        0x000E
+#define SCAN_F5        0x000F
+#define SCAN_F6        0x0010
+#define SCAN_F7        0x0011
+#define SCAN_F8        0x0012
+#define SCAN_F9        0x0013
+#define SCAN_F10       0x0014
+#define SCAN_F11       0x0015
+#define SCAN_F12       0x0016
+#define SCAN_ESC       0x0017
+
+typedef
+EFI_STATUS
+(EFIAPI *EFI_INPUT_RESET) (
+    IN struct _SIMPLE_INPUT_INTERFACE *This,
+    IN BOOLEAN ExtendedVerification
+    );
+
+typedef
+EFI_STATUS
+(EFIAPI *EFI_INPUT_READ_KEY) (
+    IN struct _SIMPLE_INPUT_INTERFACE *This,
+    OUT EFI_INPUT_KEY *Key
+    );
+
+typedef struct _SIMPLE_INPUT_INTERFACE {
+    EFI_INPUT_RESET    Reset;
+    EFI_INPUT_READ_KEY ReadKeyStroke;
+    EFI_EVENT          WaitForKey;
+} SIMPLE_INPUT_INTERFACE, EFI_SIMPLE_TEXT_IN_PROTOCOL;
+
+#endif
diff --git a/BOOT/ENVIRON/INC/efidef.h b/BOOT/ENVIRON/INC/efidef.h
new file mode 100644
index 0000000..a89d925
--- /dev/null
+++ b/BOOT/ENVIRON/INC/efidef.h
@@ -0,0 +1,196 @@
+/*++
+
+Copyright (c) 2024, the LibreXP developers.
+Provided under the BSD 3-Clause license.
+
+Module Name:
+
+   efidef.h
+
+Abstract:
+
+   Provides basic EFI type/structure definitions.
+
+--*/
+
+#ifndef _EFIDEF_H
+#define _EFIDEF_H
+
+#ifndef VOID
+    #define VOID void
+#endif
+
+#ifndef CONST
+    #define CONST const
+#endif
+
+#ifndef NULL
+#if defined(__cplusplus)
+    #define NULL 0
+#else
+    #define NULL ((VOID *) 0)
+#endif
+#endif
+
+#if defined(__cplusplus)
+    typedef bool BOOLEAN;
+#else
+    typedef UINT8 BOOLEAN;
+#endif
+
+#ifndef TRUE
+#if defined(__cplusplus)
+    typedef bool BOOLEAN;
+    #define TRUE  true
+    #define FALSE false
+#else
+    typedef UINT8 BOOLEAN;
+    #define TRUE  ((BOOLEAN) 1)
+    #define FALSE ((BOOLEAN) 0)
+#endif
+#endif
+
+typedef UINT16 CHAR16;
+typedef UINT8 CHAR8;
+
+typedef UINTN EFI_STATUS;
+typedef UINT64 EFI_LBA;
+typedef UINTN EFI_TPL;
+typedef VOID *EFI_HANDLE;
+typedef VOID *EFI_EVENT;
+
+/*
+ * Decorators to show parameter direction.
+ *
+ * IN - argument passed into routine.
+ * OUT - argument pointer returned by routine.
+ * OPTIONAL - argument is not required.
+ */
+
+#ifndef IN
+    #define IN
+    #define OUT
+    #define OPTIONAL
+#endif
+
+/*
+ * Globally Unique IDentifier.
+ */
+
+typedef struct {
+    UINT32 Data1;
+    UINT16 Data2;
+    UINT16 Data3;
+    UINT8  Data4[8];
+} EFI_GUID;
+
+/*
+ * Time definitons.
+ */
+
+typedef struct {
+    UINT16 Year;
+    UINT8  Month;
+    UINT8  Day;
+    UINT8  Hour;
+    UINT8  Minute;
+    UINT8  Second;
+    UINT8  Pad1;
+    UINT32 Nanosecond;
+    INT16  Timezone;
+    UINT8  Daylight;
+    UINT8  Pad2;
+} EFI_TIME;
+
+/* For EFI_TIME.Daylight */
+#define EFI_TIME_ADJUST_DAYLIGHT 0x01
+#define EFI_TIME_IN_DAYLIGHT     0x02
+
+/* For EFI_TIME.TimeZone */
+#define EFI_UNSPECIFIED_TIMEZONE 0x07FF
+
+/*
+ * Networking definitions.
+ */
+
+typedef struct {
+    UINT8 Addr[4];
+} EFI_IPv4_ADDRESS;
+
+typedef struct {
+    UINT8 Addr[16];
+} EFI_IPv6_ADDRESS;
+
+typedef struct {
+    UINT8 Addr[32];
+} EFI_MAC_ADDRESS;
+
+/*
+ * Memory definitions.
+ */
+
+typedef UINT64 EFI_PHYSICAL_ADDRESS;
+typedef UINT64 EFI_VIRTUAL_ADDRESS;
+
+typedef enum {
+    AllocateAnyPages,
+    AllocateMaxAddress,
+    AllocateAddress,
+    MaxAllocateType
+} EFI_ALLOCATE_TYPE;
+
+typedef enum {
+    EfiReservedMemoryType,
+    EfiLoaderCode,
+    EfiLoaderData,
+    EfiBootServicesCode,
+    EfiBootServicesData,
+    EfiRuntimeServicesCode,
+    EfiRuntimeServicesData,
+    EfiConventionalMemory,
+    EfiUnusableMemory,
+    EfiACPIReclaimMemory,
+    EfiACPIMemoryNVS,
+    EfiMemoryMappedIO,
+    EfiMemoryMappedIOPortSpace,
+    EfiPalCode,
+    EfiPersistentMemory,
+    EfiUnacceptedMemoryType,
+    EfiMaxMemoryType
+} EFI_MEMORY_TYPE;
+
+/* Memory range caching types */
+#define EFI_MEMORY_UC  0x0000000000000001
+#define EFI_MEMORY_WC  0x0000000000000002
+#define EFI_MEMORY_WT  0x0000000000000004
+#define EFI_MEMORY_WB  0x0000000000000008
+#define EFI_MEMORY_UCE 0x0000000000000010  
+
+/* Memory range protection flags */
+#define EFI_MEMORY_WP 0x0000000000001000
+#define EFI_MEMORY_RP 0x0000000000002000
+#define EFI_MEMORY_XP 0x0000000000004000
+#define EFI_MEMORY_RO 0x0000000000020000
+
+/* Memory type runtime mapping flags */
+#define EFI_MEMORY_NV      0x0000000000008000
+#define EFI_MEMORY_RUNTIME 0x8000000000000000
+
+#define EFI_MEMORY_DESCRIPTOR_VERSION 1
+
+typedef struct {
+    UINT32 Type;
+    UINT32 Pad;
+    EFI_PHYSICAL_ADDRESS PhysicalStart;
+    EFI_VIRTUAL_ADDRESS VirtualStart;
+    UINT64 NumberOfPages;
+    UINT64 Attribute;
+} EFI_MEMORY_DESCRIPTOR;
+
+#define EFI_PAGE_SIZE  4096
+#define EFI_PAGE_MASK  0xFFF
+#define EFI_PAGE_SHIFT 12
+
+#define EFI_SIZE_TO_PAGES(s) (((s) >> EFI_PAGE_SHIFT) + ((s) & EFI_PAGE_MASK ? 1 : 0))
+
+#endif
diff --git a/BOOT/ENVIRON/INC/efidevp.h b/BOOT/ENVIRON/INC/efidevp.h
new file mode 100644
index 0000000..dcfc6e1
--- /dev/null
+++ b/BOOT/ENVIRON/INC/efidevp.h
@@ -0,0 +1,28 @@
+/*++
+
+Copyright (c) 2024, the LibreXP developers.
+Provided under the BSD 3-Clause license.
+
+Module Name:
+
+   efidevp.h
+
+Abstract:
+
+   Provides EFI device path definitions.
+
+--*/
+
+#ifndef _EFIDEVP_H
+#define _EFIDEVP_H
+
+typedef struct _EFI_DEVICE_PATH_PROTOCOL {
+    UINT8 Type;
+    UINT8 SubType;
+    UINT8 Length[2];
+} EFI_DEVICE_PATH_PROTOCOL;
+
+typedef struct _EFI_DEVICE_PATH_PROTOCOL _EFI_DEVICE_PATH;
+typedef EFI_DEVICE_PATH_PROTOCOL EFI_DEVICE_PATH;
+
+#endif
diff --git a/BOOT/ENVIRON/INC/efierr.h b/BOOT/ENVIRON/INC/efierr.h
new file mode 100644
index 0000000..3fd4b59
--- /dev/null
+++ b/BOOT/ENVIRON/INC/efierr.h
@@ -0,0 +1,65 @@
+/*++
+
+Copyright (c) 2024, the LibreXP developers.
+Provided under the BSD 3-Clause license.
+
+Module Name:
+
+   efierr.h
+
+Abstract:
+
+   Provides EFI error definitions.
+
+--*/
+
+#ifndef _EFIERR_H
+#define _EFIERR_H
+
+#define EFIWARN(a)   (a)
+#define EFI_ERROR(a) (((INTN) a) < 0)
+
+#define EFI_SUCCESS              0
+#define EFI_LOAD_ERROR           EFIERR(1)
+#define EFI_INVALID_PARAMETER    EFIERR(2)
+#define EFI_UNSUPPORTED          EFIERR(3)
+#define EFI_BAD_BUFFER_SIZE      EFIERR(4)
+#define EFI_BUFFER_TOO_SMALL     EFIERR(5)
+#define EFI_NOT_READY            EFIERR(6)
+#define EFI_DEVICE_ERROR         EFIERR(7)
+#define EFI_WRITE_PROTECTED      EFIERR(8)
+#define EFI_OUT_OF_RESOURCES     EFIERR(9)
+#define EFI_VOLUME_CORRUPTED     EFIERR(10)
+#define EFI_VOLUME_FULL          EFIERR(11)
+#define EFI_NO_MEDIA             EFIERR(12)
+#define EFI_MEDIA_CHANGED        EFIERR(13)
+#define EFI_NOT_FOUND            EFIERR(14)
+#define EFI_ACCESS_DENIED        EFIERR(15)
+#define EFI_NO_RESPONSE          EFIERR(16)
+#define EFI_NO_MAPPING           EFIERR(17)
+#define EFI_TIMEOUT              EFIERR(18)
+#define EFI_NOT_STARTED          EFIERR(19)
+#define EFI_ALREADY_STARTED      EFIERR(20)
+#define EFI_ABORTED              EFIERR(21)
+#define EFI_ICMP_ERROR           EFIERR(22)
+#define EFI_TFTP_ERROR           EFIERR(23)
+#define EFI_PROTOCOL_ERROR       EFIERR(24)
+#define EFI_INCOMPATIBLE_VERSION EFIERR(25)
+#define EFI_SECURITY_VIOLATION   EFIERR(26)
+#define EFI_CRC_ERROR            EFIERR(27)
+#define EFI_END_OF_MEDIA         EFIERR(28)
+#define EFI_END_OF_FILE          EFIERR(31)
+#define EFI_INVALID_LANGUAGE     EFIERR(32)
+#define EFI_COMPROMISED_DATA     EFIERR(33)
+#define EFI_IP_ADDRESS_CONFLICT  EFIERR(34)
+#define EFI_HTTP_ERROR           EFIERR(35)
+
+#define EFI_WARN_UNKOWN_GLYPH     EFIWARN(1)
+#define EFI_WARN_DELETE_FAILURE   EFIWARN(2)
+#define EFI_WARN_WRITE_FAILURE    EFIWARN(3)
+#define EFI_WARN_BUFFER_TOO_SMALL EFIWARN(4)
+#define EFI_WARN_STALE_DATA       EFIWARN(5)
+#define EFI_WARN_FILE_SYSTEM      EFIWARN(6)
+#define EFI_WARN_RESET_REQUESTED  EFIWARN(7)
+
+#endif
diff --git a/BOOT/ENVIRON/INC/efiprot.h b/BOOT/ENVIRON/INC/efiprot.h
new file mode 100644
index 0000000..b51e00a
--- /dev/null
+++ b/BOOT/ENVIRON/INC/efiprot.h
@@ -0,0 +1,27 @@
+/*++
+
+Copyright (c) 2024, the LibreXP developers.
+Provided under the BSD 3-Clause license.
+
+Module Name:
+
+   efiprot.h
+
+Abstract:
+
+   Provides EFI protocol definitions.
+
+--*/
+
+#ifndef _EFIPROT_H
+#define _EFIPROT_H
+
+/*
+ * Device path protocol definitions.
+ */
+
+#define EFI_DEVICE_PATH_PROTOCOL_GUID \
+    { 0x9576e91, 0x6d3f, 0x11d2, { 0x8e, 0x39, 0x0, 0xa0, 0xc9, 0x69, 0x72, 0x3b } }
+#define DEVICE_PATH_PROTOCOL EFI_DEVICE_PATH_PROTOCOL_GUID
+
+#endif
diff --git a/BOOT/ENVIRON/INC/nt.h b/BOOT/ENVIRON/INC/nt.h
new file mode 100644
index 0000000..fdbd4c9
--- /dev/null
+++ b/BOOT/ENVIRON/INC/nt.h
@@ -0,0 +1,23 @@
+/*++
+
+Copyright (c) 2024, the LibreXP developers.
+Provided under the BSD 3-Clause license.
+
+Module Name:
+
+   nt.h
+
+Abstract:
+
+   Provides NT header files.
+
+--*/
+
+#ifndef _NT_H
+#define _NT_H
+
+#include <ntdef.h>
+#include <ntstatus.h>
+#include <ntimage.h>
+
+#endif
diff --git a/BOOT/ENVIRON/INC/ntdef.h b/BOOT/ENVIRON/INC/ntdef.h
new file mode 100644
index 0000000..e994b12
--- /dev/null
+++ b/BOOT/ENVIRON/INC/ntdef.h
@@ -0,0 +1,146 @@
+/*++
+
+Copyright (c) 2024, the LibreXP developers.
+Provided under the BSD 3-Clause license.
+
+Module Name:
+
+   ntdef.h
+
+Abstract:
+
+   Provides basic NT definitions.
+
+--*/
+
+#ifndef _NTDEF_H
+#define _NTDEF_H
+
+#ifndef VOID
+    #define VOID void
+#endif
+
+#ifndef CONST
+    #define CONST const
+#endif
+
+#ifndef IN
+    #define IN
+    #define OUT
+    #define OPTIONAL
+#endif
+
+#ifndef ANYSIZE_ARRAY
+    #define ANYSIZE_ARRAY 1
+#endif
+
+#ifndef FORCEINLINE
+#if defined(_MSC_EXTENSIONS)
+    #define FORCEINLINE __inline
+#else
+    #define FORCEINLINE static inline
+#endif
+#endif
+
+#ifndef FASTCALL
+    #define FASTCALL
+#endif
+
+#ifndef NTAPI
+    #define NTAPI
+#endif
+
+//
+// Basic types.
+//
+typedef char CHAR;
+typedef short SHORT;
+typedef long LONG;
+typedef unsigned char UCHAR;
+typedef unsigned short USHORT;
+typedef unsigned long ULONG;
+
+//
+// Basic type pointers.
+//
+typedef void *PVOID;
+typedef CHAR *PCHAR;
+typedef SHORT *PSHORT;
+typedef UCHAR *PUCHAR;
+typedef USHORT *PUSHORT;
+typedef ULONG *PULONG;
+
+//
+// Wide characters.
+//
+typedef USHORT WCHAR;
+typedef WCHAR *PWCHAR;
+
+//
+// Logical values.
+//
+typedef ULONG LOGICAL;
+typedef ULONG *PLOGICAL;
+
+//
+// Status codes.
+//
+typedef LONG NTSTATUS;
+typedef NTSTATUS *PNTSTATUS;
+
+//
+// Status code utilities.
+//
+#define NT_SUCCESS(Status)     ((NTSTATUS)(Status) >= 0)
+#define NT_INFORMATION(Status) ((ULONG)(Status) >> 30 == 1)
+#define NT_WARNING(Status)     ((ULONG)(Status) >> 30 == 2)
+#define NT_ERROR(Status)       ((ULONG)(Status) >> 30 == 3)
+
+//
+// Long long type definitions.
+//
+#if defined(_MSC_EXTENSIONS)
+    typedef unsigned __int64 ULONGLONG;
+    typedef __int64 LONGLONG;
+#elif defined(UNIX_LP64)
+    typedef unsigned long ULONGLONG;
+    typedef long LONGLONG;
+#else
+    typedef unsigned long long ULONGLONG;
+    typedef long long LONGLONG;
+#endif
+
+//
+// Large (64-bit) integer value.
+//
+typedef union LARGE_INTEGER {
+    struct {
+        ULONG LowPart;
+        LONG HighPart;
+    };
+
+    LONGLONG QuadPart;
+} LARGE_INTEGER, *PLARGE_INTEGER;
+
+//
+// Large (64-bit) unsigned integer value.
+//
+typedef union ULARGE_INTEGER {
+    struct {
+        ULONG LowPart;
+        ULONG HighPart;
+    };
+
+    ULONGLONG QuadPart;
+} ULARGE_INTEGER, *PULARGE_INTEGER;
+
+//
+// Struct field offset helper.
+//
+#if !defined(__GNUC__) && !defined(__clang__)
+#define FIELD_OFFSET(type, field) ((ULONG)&(((type *)0)->field))
+#else
+#define FIELD_OFFSET(type, field) ((ULONG)__builtin_offsetof(type, field))
+#endif
+
+#endif
diff --git a/BOOT/ENVIRON/INC/ntimage.h b/BOOT/ENVIRON/INC/ntimage.h
new file mode 100644
index 0000000..14dde57
--- /dev/null
+++ b/BOOT/ENVIRON/INC/ntimage.h
@@ -0,0 +1,26 @@
+/*++
+
+Copyright (c) 2024, the LibreXP developers.
+Provided under the BSD 3-Clause license.
+
+Module Name:
+
+   ntimage.h
+
+Abstract:
+
+   Provides NT image file definitions.
+
+--*/
+
+#ifndef _NTIMAGE_H
+#define _NTIMAGE_H
+
+//
+// Machine type values.
+//
+#define IMAGE_FILE_MACHINE_UNKNOWN 0
+#define IMAGE_FILE_MACHINE_I386    0x014c
+#define IMAGE_FILE_MACHINE_AMD64   0x8664
+
+#endif
diff --git a/BOOT/ENVIRON/INC/ntstatus.h b/BOOT/ENVIRON/INC/ntstatus.h
new file mode 100644
index 0000000..9b742fc
--- /dev/null
+++ b/BOOT/ENVIRON/INC/ntstatus.h
@@ -0,0 +1,44 @@
+/*++
+
+Copyright (c) 2024, the LibreXP developers.
+Provided under the BSD 3-Clause license.
+
+Module Name:
+
+   ntstatus.h
+
+Abstract:
+
+   Provides NT status code values.
+
+--*/
+
+#ifndef _NTSTATUS_H
+#define _NTSTATUS_H
+
+#define STATUS_SUCCESS ((NTSTATUS) 0x00000000L)
+
+//
+// TODO: There are an insane amount of status values.
+//
+#define STATUS_MEDIA_CHANGED           ((NTSTATUS) 0x8000001CL)
+#define STATUS_INVALID_PARAMETER       ((NTSTATUS) 0xC000000DL)
+#define STATUS_ACCESS_DENIED           ((NTSTATUS) 0xC0000022L)
+#define STATUS_BUFFER_TOO_SMALL        ((NTSTATUS) 0xC0000023L)
+#define STATUS_DISK_CORRUPT_ERROR      ((NTSTATUS) 0xC0000032L)
+#define STATUS_DEVICE_ALREADY_ATTACHED ((NTSTATUS) 0xC0000038L)
+#define STATUS_DISK_FULL               ((NTSTATUS) 0xC000007FL)
+#define STATUS_INSUFFICIENT_RESOURCES  ((NTSTATUS) 0xC000009AL)
+#define STATUS_MEDIA_WRITE_PROTECTED   ((NTSTATUS) 0xC00000A2L)
+#define STATUS_DEVICE_NOT_READY        ((NTSTATUS) 0xC00000A3L)
+#define STATUS_NOT_SUPPORTED           ((NTSTATUS) 0xC00000BBL)
+#define STATUS_TIMEOUT                 ((NTSTATUS) 0x00000102L)
+#define STATUS_NO_MEDIA                ((NTSTATUS) 0xC0000178L)
+#define STATUS_IO_DEVICE_ERROR         ((NTSTATUS) 0xC0000185L)
+#define STATUS_INVALID_BUFFER_SIZE     ((NTSTATUS) 0xC0000206L)
+#define STATUS_NOT_FOUND               ((NTSTATUS) 0xC0000225L)
+#define STATUS_REQUEST_ABORTED         ((NTSTATUS) 0xC0000240L)
+#define STATUS_DRIVER_UNABLE_TO_LOAD   ((NTSTATUS) 0xC000026CL)
+#define STATUS_NO_MATCH                ((NTSTATUS) 0xC0000272L)
+
+#endif
diff --git a/BOOT/ENVIRON/LIB/EFI/efistatus.c b/BOOT/ENVIRON/LIB/EFI/efistatus.c
new file mode 100644
index 0000000..6300655
--- /dev/null
+++ b/BOOT/ENVIRON/LIB/EFI/efistatus.c
@@ -0,0 +1,84 @@
+/*++
+
+Copyright (c) 2024, the LibreXP developers.
+Provided under the BSD 3-Clause license.
+
+Module Name:
+
+   efistatus.c
+
+Abstract:
+
+   Provides EFI status code utilities.
+
+--*/
+
+#include "bootmgr.h"
+
+EFI_STATUS
+EfiGetEfiStatusCode (
+    IN NTSTATUS Status
+    )
+
+/*++
+
+Routine Description:
+
+    Converts an NT status code into an EFI status code.
+
+Arguments:
+
+    Status - The NT status code to be converted.
+
+Return Value:
+
+    The EFI status code.
+
+--*/
+
+{
+    switch (Status) {
+    case STATUS_SUCCESS:
+        return EFI_SUCCESS;
+    case STATUS_DRIVER_UNABLE_TO_LOAD:
+        return EFI_LOAD_ERROR;
+    case STATUS_INVALID_PARAMETER:
+        return EFI_INVALID_PARAMETER;
+    case STATUS_NOT_SUPPORTED:
+        return EFI_UNSUPPORTED;
+    case STATUS_INVALID_BUFFER_SIZE:
+        return EFI_BAD_BUFFER_SIZE;
+    case STATUS_BUFFER_TOO_SMALL:
+        return EFI_BUFFER_TOO_SMALL;
+    case STATUS_IO_DEVICE_ERROR:
+        return EFI_DEVICE_ERROR;
+    case STATUS_MEDIA_WRITE_PROTECTED:
+        return EFI_WRITE_PROTECTED;
+    case STATUS_INSUFFICIENT_RESOURCES:
+        return EFI_OUT_OF_RESOURCES;
+    case STATUS_DISK_CORRUPT_ERROR:
+        return EFI_VOLUME_CORRUPTED;
+    case STATUS_DISK_FULL:
+        return EFI_VOLUME_FULL;
+    case STATUS_NO_MEDIA:
+        return EFI_NO_MEDIA;
+    case STATUS_MEDIA_CHANGED:
+        return EFI_MEDIA_CHANGED;
+    case STATUS_NOT_FOUND:
+        return EFI_NOT_FOUND;
+    case STATUS_ACCESS_DENIED:
+        return EFI_ACCESS_DENIED;
+    case STATUS_NO_MATCH:
+        return EFI_NO_MAPPING;
+    case STATUS_TIMEOUT:
+        return EFI_TIMEOUT;
+    case STATUS_DEVICE_NOT_READY:
+        return EFI_NOT_STARTED;
+    case STATUS_DEVICE_ALREADY_ATTACHED:
+        return EFI_ALREADY_STARTED;
+    case STATUS_REQUEST_ABORTED:
+        return EFI_ABORTED;
+    default:
+        return EFI_NO_MAPPING;
+    }
+}