diff --git a/platformio.ini b/platformio.ini
index 478e917..b9a4abb 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -8,23 +8,38 @@
 ; Please visit documentation for the other options and examples
 ; https://docs.platformio.org/page/projectconf.html
 
-;[env:alt]
-;platform = espressif32
-;board = 4d_systems_esp32s3_gen4_r8n16
-;framework = arduino
-;lib_deps = TFT_eSPI, fbiego/ESP32Time@^2.0.6, electroniccats/MPU6050@^1.4.3
-;monitor_filters = esp32_exception_decoder
-;monitor_speed = 115200
-;
-;build_flags = 
-;    -DBOARD_HAS_PSRAM
-;    -mfix-esp32-psram-cache-issue
-;    ; These ensure the N16R8 uses the fast Octal (OPI) mode
-;    -DARDUINO_USB_CDC_ON_BOOT=1
-;    -DDEV_UNIT
-;    -DDEBUG
+[env:s3-full]
+platform = espressif32
+board = 4d_systems_esp32s3_gen4_r8n16
+framework = arduino
+monitor_filters = esp32_exception_decoder
+monitor_speed = 115200
 
-[env:alt]
+lib_deps = 
+    TFT_eSPI
+    fbiego/ESP32Time@^2.0.6
+    electroniccats/MPU6050@^1.4.3
+
+; --- Hardware & Memory Topology ---
+board_build.arduino.psram = enabled
+board_upload.flash_size = 16MB
+board_build.partitions = default_16MB.csv
+
+; FIX 2: Explicitly matches the 'mode:DIO' your ROM is reporting
+board_build.flash_mode = dio  
+board_build.arduino.memory_type = dio_opi
+
+build_flags = 
+    -DBOARD_HAS_PSRAM
+    ; FIX 1: Forces all Serial.print logs to stay on the hardware UART port
+    -DARDUINO_USB_CDC_ON_BOOT=0  
+    -DDEV_UNIT
+    -DDEBUG
+
+upload_port = COM8
+monitor_port = COM8
+
+[env:s3-supermini]
 platform = espressif32
 board = esp32-s3-devkitc-1
 framework = arduino
@@ -45,3 +60,5 @@ build_flags =
 ; Ensure partition table fits 4MB
 board_build.partitions = default.csv
 lib_deps = TFT_eSPI, fbiego/ESP32Time@^2.0.6, electroniccats/MPU6050@^1.4.3
+upload_port = COM5
+monitor_port = COM5
\ No newline at end of file