diff --git a/core/SConscript.bootloader_emu b/core/SConscript.bootloader_emu
index f2c3d770fd..d8ace1f240 100644
--- a/core/SConscript.bootloader_emu
+++ b/core/SConscript.bootloader_emu
@@ -72,7 +72,6 @@ CPPPATH_MOD += [
 
 SOURCE_MOD += [
     'embed/extmod/modtrezorcrypto/rand.c',
-    'embed/lib/buffers.c',
     'embed/lib/colors.c',
     'embed/lib/display_utils.c',
     'embed/lib/error_handling.c',
diff --git a/core/SConscript.unix b/core/SConscript.unix
index e7f1bfe5f4..aa46f36af6 100644
--- a/core/SConscript.unix
+++ b/core/SConscript.unix
@@ -204,7 +204,6 @@ CPPPATH_MOD += [
 ]
 SOURCE_MOD += [
     'embed/extmod/modtrezorui/modtrezorui.c',
-    'embed/lib/buffers.c',
     'embed/lib/colors.c',
     'embed/lib/display_utils.c',
     'embed/lib/error_handling.c',
diff --git a/core/embed/models/T3W1/boards/t3w1-unix.h b/core/embed/models/T3W1/boards/t3w1-unix.h
new file mode 100644
index 0000000000..4ba457ffaf
--- /dev/null
+++ b/core/embed/models/T3W1/boards/t3w1-unix.h
@@ -0,0 +1,26 @@
+#ifndef BOARDS_T3W1_UNIX_H
+#define BOARDS_T3W1_UNIX_H
+
+#define USE_TOUCH 1
+#define USE_SBU 1
+#define USE_RGB_COLORS 1
+#define USE_BACKLIGHT 1
+#define USE_OPTIGA 1
+
+#define MAX_DISPLAY_RESX 380
+#define MAX_DISPLAY_RESY 520
+#define DISPLAY_RESX 380
+#define DISPLAY_RESY 520
+#define TREZOR_FONT_BPP 4
+
+#define WINDOW_WIDTH 400
+#define WINDOW_HEIGHT 600
+#define TOUCH_OFFSET_X 80
+#define TOUCH_OFFSET_Y 102
+
+#define ORIENTATION_NS 1
+
+// #define BACKGROUND_FILE "T3W1/background_T3W1.h"
+// #define BACKGROUND_NAME background_T3W1_jpg
+
+#endif  // BOARDS_T3W1_UNIX_H
diff --git a/core/embed/trezorhal/unix/display_driver.c b/core/embed/trezorhal/unix/display_driver.c
index d4b7939ac2..5a23218264 100644
--- a/core/embed/trezorhal/unix/display_driver.c
+++ b/core/embed/trezorhal/unix/display_driver.c
@@ -122,12 +122,14 @@ void display_init(display_content_mode_t mode) {
   SDL_PumpEvents();
   SDL_SetWindowSize(drv->window, WINDOW_WIDTH, WINDOW_HEIGHT);
 #endif
+#ifdef BACKGROUND_FILE
 #include BACKGROUND_FILE
 #define CONCAT_LEN_HELPER(name) name##_len
 #define CONCAT_LEN(name) CONCAT_LEN_HELPER(name)
   drv->background = IMG_LoadTexture_RW(
       drv->renderer,
       SDL_RWFromMem(BACKGROUND_NAME, CONCAT_LEN(BACKGROUND_NAME)), 0);
+#endif
   if (drv->background) {
     SDL_SetTextureBlendMode(drv->background, SDL_BLENDMODE_NONE);
     sdl_touch_offset_x = TOUCH_OFFSET_X;
diff --git a/core/embed/trezorhal/unix/flash.c b/core/embed/trezorhal/unix/flash.c
index 60f1907f90..acd967aba3 100644
--- a/core/embed/trezorhal/unix/flash.c
+++ b/core/embed/trezorhal/unix/flash.c
@@ -35,16 +35,16 @@
 #define FLASH_FILE profile_flash_path()
 #endif
 
-#if defined TREZOR_MODEL_T || defined TREZOR_MODEL_R
+#if defined STM32F427xx || defined STM32F429xx
 #define FLASH_SECTOR_COUNT 24
-#elif defined TREZOR_MODEL_T3T1 || defined TREZOR_MODEL_T3B1
+#elif defined STM32U585xx || defined STM32U5A9xx
 #define FLASH_SECTOR_COUNT 256
 #else
 #error Unknown MCU
 #endif
 
 static uint32_t FLASH_SECTOR_TABLE[FLASH_SECTOR_COUNT + 1] = {
-#if defined TREZOR_MODEL_T || defined TREZOR_MODEL_R
+#if defined STM32F427xx || defined STM32F429xx
     [0] = 0x08000000,   // - 0x08003FFF |  16 KiB
     [1] = 0x08004000,   // - 0x08007FFF |  16 KiB
     [2] = 0x08008000,   // - 0x0800BFFF |  16 KiB
@@ -70,7 +70,7 @@ static uint32_t FLASH_SECTOR_TABLE[FLASH_SECTOR_COUNT + 1] = {
     [22] = 0x081C0000,  // - 0x081DFFFF | 128 KiB
     [23] = 0x081E0000,  // - 0x081FFFFF | 128 KiB
     [24] = 0x08200000,  // last element - not a valid sector
-#elif defined TREZOR_MODEL_T3T1 || defined TREZOR_MODEL_T3B1
+#elif defined STM32U585xx || defined STM32U5A9xx
     [0] = 0x08000000,  // - 0x08001FFF |   8 KiB
                        // rest is initialized in flash_init
 #else
diff --git a/core/embed/trezorhal/unix/optiga.c b/core/embed/trezorhal/unix/optiga.c
index 44a2b97cf4..8a5fe94c67 100644
--- a/core/embed/trezorhal/unix/optiga.c
+++ b/core/embed/trezorhal/unix/optiga.c
@@ -34,6 +34,9 @@
 #elif defined(TREZOR_MODEL_T3B1)
 #include "certs/T2B1.h"
 #define DEVICE_CERT_CHAIN T2B1_der
+#elif defined(TREZOR_MODEL_T3W1)
+#include "certs/T2B1.h"
+#define DEVICE_CERT_CHAIN T2B1_der
 #else
 #error "Cert chain for specified model is not available."
 #endif
diff --git a/core/site_scons/models/T3W1/__init__.py b/core/site_scons/models/T3W1/__init__.py
index 6874ed2f0e..45f16a8c64 100644
--- a/core/site_scons/models/T3W1/__init__.py
+++ b/core/site_scons/models/T3W1/__init__.py
@@ -2,7 +2,7 @@
 
 from typing import Optional
 
-from . import trezor_t3w1_d1
+from . import emulator, trezor_t3w1_d1
 
 
 def configure_board(
@@ -18,6 +18,7 @@ def configure_board(
 
     # Mapping of revisions to their respective configurations
     revision_map = {
+        "emulator": emulator,
         "d1": trezor_t3w1_d1,
     }
 
diff --git a/core/site_scons/models/T3W1/emulator.py b/core/site_scons/models/T3W1/emulator.py
new file mode 100644
index 0000000000..9f1aee1cc1
--- /dev/null
+++ b/core/site_scons/models/T3W1/emulator.py
@@ -0,0 +1,61 @@
+from __future__ import annotations
+
+from .. import get_hw_model_as_number
+
+
+def configure(
+    env: dict,
+    features_wanted: list[str],
+    defines: list[str | tuple[str, str]],
+    sources: list[str],
+    paths: list[str],
+) -> list[str]:
+
+    features_available: list[str] = []
+    board = "T3W1/boards/t3w1-unix.h"
+    hw_model = get_hw_model_as_number("T3W1")
+    hw_revision = 0
+    mcu = "STM32F427xx"
+
+    defines += ["XFRAMEBUFFER", "DISPLAY_RGB585"]
+    features_available.append("xframebuffer")
+    features_available.append("display_rgb565")
+
+    defines += [mcu]
+    defines += [f'TREZOR_BOARD=\\"{board}\\"']
+    defines += [f"HW_MODEL={hw_model}"]
+    defines += [f"HW_REVISION={hw_revision}"]
+    defines += [f"MCU_TYPE={mcu}"]
+    # todo change to blockwise flash when implemented in unix
+    defines += ["FLASH_BIT_ACCESS=1"]
+    defines += ["FLASH_BLOCK_WORDS=1"]
+
+    if "dma2d" in features_wanted:
+        features_available.append("dma2d")
+        if "new_rendering" in features_wanted:
+            sources += [
+                "embed/trezorhal/unix/dma2d_bitblt.c",
+            ]
+        else:
+            sources += ["embed/lib/dma2d_emul.c"]
+        defines += ["USE_DMA2D"]
+
+    if "sbu" in features_wanted:
+        sources += ["embed/trezorhal/unix/sbu.c"]
+
+    if "optiga_hal" in features_wanted:
+        sources += ["embed/trezorhal/unix/optiga_hal.c"]
+
+    if "optiga" in features_wanted:
+        sources += ["embed/trezorhal/unix/optiga.c"]
+        features_available.append("optiga")
+
+    if "input" in features_wanted:
+        sources += ["embed/trezorhal/unix/touch.c"]
+        features_available.append("touch")
+
+    features_available.append("backlight")
+
+    sources += ["embed/trezorhal/stm32f4/layout.c"]
+
+    return features_available