diff --git a/internal_filesystem/lib/mpos/board/lilygo_t_watch_s3_plus.py b/internal_filesystem/lib/mpos/board/lilygo_t_watch_s3_plus.py
new file mode 100644
index 00000000..a11db159
--- /dev/null
+++ b/internal_filesystem/lib/mpos/board/lilygo_t_watch_s3_plus.py
@@ -0,0 +1,59 @@
+print("lilygo_t_watch_s3_plus.py initialization")
+# Manufacturer's website at https://lilygo.cc/products/t-watch-s3-plus
+import lcd_bus
+import machine
+import i2c
+
+import lvgl as lv
+import task_handler
+
+import drivers.display.st7789 as st7789
+
+import mpos.ui
+
+spi_bus = machine.SPI.Bus(
+    host=2,
+    mosi=13,
+    sck=18
+)
+display_bus = lcd_bus.SPIBus(
+    spi_bus=spi_bus,
+    freq=40000000,
+    dc=38,
+    cs=12,
+)
+
+_BUFFER_SIZE = const(28800)
+fb1 = display_bus.allocate_framebuffer(_BUFFER_SIZE, lcd_bus.MEMORY_INTERNAL | lcd_bus.MEMORY_DMA)
+fb2 = display_bus.allocate_framebuffer(_BUFFER_SIZE, lcd_bus.MEMORY_INTERNAL | lcd_bus.MEMORY_DMA)
+
+mpos.ui.main_display = st7789.ST7789(
+    data_bus=display_bus,
+    frame_buffer1=fb1,
+    frame_buffer2=fb2,
+    display_width=240,
+    display_height=240,
+    color_space=lv.COLOR_FORMAT.RGB565,
+    color_byte_order=st7789.BYTE_ORDER_BGR,
+    rgb565_byte_swap=True,
+    backlight_pin=45,
+    backlight_on_state=st7789.STATE_PWM,
+)
+mpos.ui.main_display.init()
+mpos.ui.main_display.set_power(True)
+mpos.ui.main_display.set_backlight(100)
+
+# TODO:
+# Touch handling:
+#import drivers.indev.cst816s as cst816s
+#i2c_bus = i2c.I2C.Bus(host=0, scl=40, sda=39, freq=400000, use_locks=False)
+#touch_dev = i2c.I2C.Device(bus=i2c_bus, dev_id=0x15, reg_bits=8)
+#indev=cst816s.CST816S(touch_dev)
+
+lv.init()
+
+# TODO:
+# - battery
+# - IMU
+
+print("lilygo_t_watch_s3_plus.py finished")
diff --git a/internal_filesystem/lib/mpos/main.py b/internal_filesystem/lib/mpos/main.py
index 16a73420..40778bc8 100644
--- a/internal_filesystem/lib/mpos/main.py
+++ b/internal_filesystem/lib/mpos/main.py
@@ -122,6 +122,14 @@ def detect_board():
             # or: if single_address_i2c_scan(i2c0, 0x6A): # IMU currently not installed on prototype board
             return "fri3d_2026"
 
+        print("qemu ?")
+        if unique_id_prefix == 0x10:
+            return "qemu"
+
+        if i2c0 := fail_save_i2c(sda=10, scl=11):
+            if single_address_i2c_scan(i2c0, 0x20): # IMU
+                return "lilygo_t_watch_s3_plus"
+        
         raise Exception(
             "Unknown ESP32-S3 board: couldn't detect known I2C devices or unique_id prefix"
         )