diff --git a/locale/circuitpython.pot b/locale/circuitpython.pot
index abadd83b6a..a0bc751ccb 100644
--- a/locale/circuitpython.pot
+++ b/locale/circuitpython.pot
@@ -28,6 +28,14 @@ msgid ""
 "Code stopped by auto-reload. Reloading soon.\n"
 msgstr ""
 
+#: main.c
+msgid ""
+"\n"
+"Invalid CIRCUITPY_PYSTACK_SIZE\n"
+"\n"
+"\r"
+msgstr ""
+
 #: supervisor/shared/safe_mode.c
 msgid ""
 "\n"
@@ -2391,6 +2399,10 @@ msgstr ""
 msgid "You pressed the GPIO0 button at start up."
 msgstr ""
 
+#: ports/espressif/boards/espressif_esp32_lyrat/mpconfigboard.h
+msgid "You pressed the Rec button at start up."
+msgstr ""
+
 #: ports/espressif/boards/adafruit_feather_esp32_v2/mpconfigboard.h
 msgid "You pressed the SW38 button at start up."
 msgstr ""
diff --git a/main.c b/main.c
index ee08726425..18f145c334 100644
--- a/main.c
+++ b/main.c
@@ -122,8 +122,8 @@
 uint8_t value_out = 0;
 #endif
 
-#if MICROPY_ENABLE_PYSTACK
-static size_t PLACE_IN_DTCM_BSS(_pystack[CIRCUITPY_PYSTACK_SIZE / sizeof(size_t)]);
+#if MICROPY_ENABLE_PYSTACK && CIRCUITPY_OS_GETENV
+#include "shared-module/os/__init__.h"
 #endif
 
 static void reset_devices(void) {
@@ -132,7 +132,32 @@ static void reset_devices(void) {
     #endif
 }
 
-STATIC void start_mp(supervisor_allocation *heap) {
+#if MICROPY_ENABLE_PYSTACK
+STATIC supervisor_allocation *allocate_pystack(safe_mode_t safe_mode) {
+    mp_int_t pystack_size = CIRCUITPY_PYSTACK_SIZE;
+    #if CIRCUITPY_OS_GETENV && CIRCUITPY_SETTABLE_PYSTACK
+    // Fetch value if exists from settings.toml
+    // Leaves size to build default on any failure
+    if (safe_mode == SAFE_MODE_NONE || safe_mode == SAFE_MODE_USER) {
+        (void)common_hal_os_getenv_int("CIRCUITPY_PYSTACK_SIZE", &pystack_size);
+        // Check if value is valid
+        pystack_size = pystack_size - pystack_size % sizeof(size_t); // Round down to multiple of 4.
+        if ((pystack_size < 384) || (pystack_size > 900000)) {
+            serial_write_compressed(translate("\nInvalid CIRCUITPY_PYSTACK_SIZE\n\n\r"));
+            pystack_size = CIRCUITPY_PYSTACK_SIZE; // Reset
+        }
+    }
+    #endif
+    supervisor_allocation *pystack = allocate_memory(pystack_size, false, false);
+    if (pystack == NULL) {
+        serial_write_compressed(translate("\nInvalid CIRCUITPY_PYSTACK_SIZE\n\n\r"));
+        pystack = allocate_memory(CIRCUITPY_PYSTACK_SIZE, false, false);
+    }
+    return pystack;
+}
+#endif
+
+STATIC void start_mp(supervisor_allocation *heap, supervisor_allocation *pystack) {
     supervisor_workflow_reset();
 
     // Stack limit should be less than real stack size, so we have a chance
@@ -160,7 +185,7 @@ STATIC void start_mp(supervisor_allocation *heap) {
     readline_init0();
 
     #if MICROPY_ENABLE_PYSTACK
-    mp_pystack_init(_pystack, _pystack + (sizeof(_pystack) / sizeof(size_t)));
+    mp_pystack_init(pystack->ptr, pystack->ptr + get_allocation_length(pystack) / sizeof(size_t));
     #endif
 
     #if MICROPY_ENABLE_GC
@@ -264,7 +289,7 @@ STATIC void count_strn(void *data, const char *str, size_t len) {
     *(size_t *)data += len;
 }
 
-STATIC void cleanup_after_vm(supervisor_allocation *heap, mp_obj_t exception) {
+STATIC void cleanup_after_vm(supervisor_allocation *heap, supervisor_allocation *pystack, mp_obj_t exception) {
     // Get the traceback of any exception from this run off the heap.
     // MP_OBJ_SENTINEL means "this run does not contribute to traceback storage, don't touch it"
     // MP_OBJ_NULL (=0) means "this run completed successfully, clear any stored traceback"
@@ -345,6 +370,9 @@ STATIC void cleanup_after_vm(supervisor_allocation *heap, mp_obj_t exception) {
     filesystem_flush();
     stop_mp();
     free_memory(heap);
+    #if MICROPY_ENABLE_PYSTACK
+    free_memory(pystack);
+    #endif
     supervisor_move_memory();
 
     // Let the workflows know we've reset in case they want to restart.
@@ -399,10 +427,12 @@ STATIC bool run_code_py(safe_mode_t safe_mode, bool *simulate_reset) {
         };
         #endif
 
+        supervisor_allocation *pystack = NULL;
+        #if MICROPY_ENABLE_PYSTACK
+        pystack = allocate_pystack(safe_mode);
+        #endif
         supervisor_allocation *heap = allocate_remaining_memory();
-
-        // Prepare the VM state.
-        start_mp(heap);
+        start_mp(heap, pystack);
 
         #if CIRCUITPY_USB
         usb_setup_with_vm();
@@ -450,7 +480,7 @@ STATIC bool run_code_py(safe_mode_t safe_mode, bool *simulate_reset) {
 
 
         // Finished executing python code. Cleanup includes filesystem flush and a board reset.
-        cleanup_after_vm(heap, _exec_result.exception);
+        cleanup_after_vm(heap, pystack, _exec_result.exception);
         _exec_result.exception = NULL;
 
         // If a new next code file was set, that is a reason to keep it (obviously). Stuff this into
@@ -739,8 +769,12 @@ STATIC void __attribute__ ((noinline)) run_safemode_py(safe_mode_t safe_mode) {
         return;
     }
 
+    supervisor_allocation *pystack = NULL;
+    #if MICROPY_ENABLE_PYSTACK
+    pystack = allocate_pystack(safe_mode);
+    #endif
     supervisor_allocation *heap = allocate_remaining_memory();
-    start_mp(heap);
+    start_mp(heap, pystack);
 
     static const char *const safemode_py_filenames[] = {"safemode.py", "safemode.txt"};
     maybe_run_list(safemode_py_filenames, MP_ARRAY_SIZE(safemode_py_filenames));
@@ -751,7 +785,7 @@ STATIC void __attribute__ ((noinline)) run_safemode_py(safe_mode_t safe_mode) {
         set_safe_mode(SAFE_MODE_SAFEMODE_PY_ERROR);
     }
 
-    cleanup_after_vm(heap, _exec_result.exception);
+    cleanup_after_vm(heap, pystack, _exec_result.exception);
     _exec_result.exception = NULL;
 }
 #endif
@@ -772,9 +806,12 @@ STATIC void __attribute__ ((noinline)) run_boot_py(safe_mode_t safe_mode) {
 
     // Do USB setup even if boot.py is not run.
 
+    supervisor_allocation *pystack = NULL;
+    #if MICROPY_ENABLE_PYSTACK
+    pystack = allocate_pystack(safe_mode);
+    #endif
     supervisor_allocation *heap = allocate_remaining_memory();
-
-    start_mp(heap);
+    start_mp(heap, pystack);
 
     #if CIRCUITPY_USB
     // Set up default USB values after boot.py VM starts but before running boot.py.
@@ -860,7 +897,7 @@ STATIC void __attribute__ ((noinline)) run_boot_py(safe_mode_t safe_mode) {
 
     port_post_boot_py(true);
 
-    cleanup_after_vm(heap, _exec_result.exception);
+    cleanup_after_vm(heap, pystack, _exec_result.exception);
     _exec_result.exception = NULL;
 
     port_post_boot_py(false);
@@ -871,12 +908,16 @@ STATIC void __attribute__ ((noinline)) run_boot_py(safe_mode_t safe_mode) {
     #endif
 }
 
-STATIC int run_repl(void) {
+STATIC int run_repl(safe_mode_t safe_mode) {
     int exit_code = PYEXEC_FORCED_EXIT;
     stack_resize();
     filesystem_flush();
+    supervisor_allocation *pystack = NULL;
+    #if MICROPY_ENABLE_PYSTACK
+    pystack = allocate_pystack(safe_mode);
+    #endif
     supervisor_allocation *heap = allocate_remaining_memory();
-    start_mp(heap);
+    start_mp(heap, pystack);
 
     #if CIRCUITPY_USB
     usb_setup_with_vm();
@@ -919,7 +960,7 @@ STATIC int run_repl(void) {
         exit_code = PYEXEC_DEEP_SLEEP;
     }
     #endif
-    cleanup_after_vm(heap, MP_OBJ_SENTINEL);
+    cleanup_after_vm(heap, pystack, MP_OBJ_SENTINEL);
 
     // Also reset bleio. The above call omits it in case workflows should continue. In this case,
     // we're switching straight to another VM so we want to reset.
@@ -938,6 +979,7 @@ STATIC int run_repl(void) {
 }
 
 int __attribute__((used)) main(void) {
+
     // initialise the cpu and peripherals
     set_safe_mode(port_init());
 
@@ -1038,7 +1080,7 @@ int __attribute__((used)) main(void) {
     bool simulate_reset = true;
     for (;;) {
         if (!skip_repl) {
-            exit_code = run_repl();
+            exit_code = run_repl(get_safe_mode());
             supervisor_set_run_reason(RUN_REASON_REPL_RELOAD);
         }
         if (exit_code == PYEXEC_FORCED_EXIT) {
diff --git a/ports/atmel-samd/boards/kicksat-sprite/mpconfigboard.mk b/ports/atmel-samd/boards/kicksat-sprite/mpconfigboard.mk
index 9bc50ab429..9ca9259747 100644
--- a/ports/atmel-samd/boards/kicksat-sprite/mpconfigboard.mk
+++ b/ports/atmel-samd/boards/kicksat-sprite/mpconfigboard.mk
@@ -20,11 +20,13 @@ CIRCUITPY_BLEIO_HCI = 0
 CIRCUITPY_DISPLAYIO = 0
 CIRCUITPY_FLOPPYIO = 0
 CIRCUITPY_FRAMEBUFFERIO = 0
+CIRCUITPY_PIXELMAP = 0
 CIRCUITPY_GETPASS = 0
 CIRCUITPY_KEYPAD = 0
 CIRCUITPY_MSGPACK = 0
 CIRCUITPY_PS2IO = 0
 CIRCUITPY_RGBMATRIX = 0
+CIRCUITPY_RAINBOWIO = 0
 CIRCUITPY_ROTARYIO = 0
 CIRCUITPY_TOUCHIO = 0
 CIRCUITPY_USB_HID = 0
diff --git a/ports/espressif/boards/espressif_esp32_lyrat/board.c b/ports/espressif/boards/espressif_esp32_lyrat/board.c
new file mode 100644
index 0000000000..8c0c8b8b0b
--- /dev/null
+++ b/ports/espressif/boards/espressif_esp32_lyrat/board.c
@@ -0,0 +1,34 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2023 Radio Sound, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "supervisor/board.h"
+#include "mpconfigboard.h"
+#include "shared-bindings/microcontroller/Pin.h"
+#include "components/driver/include/driver/gpio.h"
+#include "components/hal/include/hal/gpio_hal.h"
+#include "common-hal/microcontroller/Pin.h"
+
+// Use the MP_WEAK supervisor/shared/board.c versions of routines not defined here.
diff --git a/ports/espressif/boards/espressif_esp32_lyrat/mpconfigboard.h b/ports/espressif/boards/espressif_esp32_lyrat/mpconfigboard.h
new file mode 100644
index 0000000000..7835e93f21
--- /dev/null
+++ b/ports/espressif/boards/espressif_esp32_lyrat/mpconfigboard.h
@@ -0,0 +1,50 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2023 Radio Sound, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+// Micropython setup
+
+#define MICROPY_HW_BOARD_NAME       "Espressif ESP32-LyraT"
+#define MICROPY_HW_MCU_NAME         "ESP32"
+
+#define MICROPY_HW_LED_STATUS (&pin_GPIO22)
+
+#define CIRCUITPY_BOARD_I2C         (1)
+#define CIRCUITPY_BOARD_I2C_PIN     {{.scl = &pin_GPIO23, .sda = &pin_GPIO18}}
+
+#define CIRCUITPY_BOARD_SPI         (1)
+#define CIRCUITPY_BOARD_SPI_PIN     {{.clock = &pin_GPIO14, .mosi = &pin_GPIO13, .miso = &pin_GPIO12}}
+
+#define CIRCUITPY_BOARD_UART        (0)
+
+// For entering safe mode, use Rec button
+#define CIRCUITPY_BOOT_BUTTON       (&pin_GPIO36)
+
+// Explanation of how a user got into safe mode
+#define BOARD_USER_SAFE_MODE_ACTION translate("You pressed the Rec button at start up.")
+
+// UART pins attached to the USB-serial converter chip
+#define CIRCUITPY_CONSOLE_UART_TX (&pin_GPIO1)
+#define CIRCUITPY_CONSOLE_UART_RX (&pin_GPIO3)
diff --git a/ports/espressif/boards/espressif_esp32_lyrat/mpconfigboard.mk b/ports/espressif/boards/espressif_esp32_lyrat/mpconfigboard.mk
new file mode 100644
index 0000000000..e9fcd24e61
--- /dev/null
+++ b/ports/espressif/boards/espressif_esp32_lyrat/mpconfigboard.mk
@@ -0,0 +1,10 @@
+CIRCUITPY_CREATOR_ID =  0x000C303A
+CIRCUITPY_CREATION_ID = 0x0032A000
+
+IDF_TARGET = esp32
+
+CIRCUITPY_ESP_FLASH_MODE = dio
+CIRCUITPY_ESP_FLASH_FREQ = 40m
+CIRCUITPY_ESP_FLASH_SIZE = 4MB
+
+CIRCUITPY_ESPCAMERA = 0
diff --git a/ports/espressif/boards/espressif_esp32_lyrat/pins.c b/ports/espressif/boards/espressif_esp32_lyrat/pins.c
new file mode 100644
index 0000000000..afef90e480
--- /dev/null
+++ b/ports/espressif/boards/espressif_esp32_lyrat/pins.c
@@ -0,0 +1,56 @@
+#include "shared-bindings/board/__init__.h"
+
+STATIC const mp_rom_map_elem_t board_module_globals_table[] = {
+    CIRCUITPYTHON_BOARD_DICT_STANDARD_ITEMS
+
+    // External pins are in silkscreen order, from top to bottom, left side, then right side
+    { MP_ROM_QSTR(MP_QSTR_CS0), MP_ROM_PTR(&pin_GPIO15) },
+    { MP_ROM_QSTR(MP_QSTR_D15), MP_ROM_PTR(&pin_GPIO15) },
+
+    { MP_ROM_QSTR(MP_QSTR_MISO), MP_ROM_PTR(&pin_GPIO13) },
+    { MP_ROM_QSTR(MP_QSTR_D13), MP_ROM_PTR(&pin_GPIO13) },
+
+    { MP_ROM_QSTR(MP_QSTR_MOSI), MP_ROM_PTR(&pin_GPIO12) },
+    { MP_ROM_QSTR(MP_QSTR_D12), MP_ROM_PTR(&pin_GPIO12) },
+
+    { MP_ROM_QSTR(MP_QSTR_SCK), MP_ROM_PTR(&pin_GPIO14) },
+    { MP_ROM_QSTR(MP_QSTR_D14), MP_ROM_PTR(&pin_GPIO14) },
+
+    { MP_ROM_QSTR(MP_QSTR_TX), MP_ROM_PTR(&pin_GPIO1) },
+    { MP_ROM_QSTR(MP_QSTR_D1), MP_ROM_PTR(&pin_GPIO1) },
+
+    { MP_ROM_QSTR(MP_QSTR_RX), MP_ROM_PTR(&pin_GPIO3) },
+    { MP_ROM_QSTR(MP_QSTR_D3), MP_ROM_PTR(&pin_GPIO3) },
+
+    { MP_ROM_QSTR(MP_QSTR_SCL), MP_ROM_PTR(&pin_GPIO23) },
+    { MP_ROM_QSTR(MP_QSTR_D23), MP_ROM_PTR(&pin_GPIO23) },
+
+    { MP_ROM_QSTR(MP_QSTR_SDA), MP_ROM_PTR(&pin_GPIO18) },
+    { MP_ROM_QSTR(MP_QSTR_D18), MP_ROM_PTR(&pin_GPIO18) },
+
+    { MP_ROM_QSTR(MP_QSTR_D0), MP_ROM_PTR(&pin_GPIO0) },
+
+    { MP_ROM_QSTR(MP_QSTR_D5), MP_ROM_PTR(&pin_GPIO5) },
+
+    { MP_ROM_QSTR(MP_QSTR_D25), MP_ROM_PTR(&pin_GPIO25) },
+
+    { MP_ROM_QSTR(MP_QSTR_D26), MP_ROM_PTR(&pin_GPIO26) },
+
+    { MP_ROM_QSTR(MP_QSTR_D35), MP_ROM_PTR(&pin_GPIO35) },
+
+    { MP_ROM_QSTR(MP_QSTR_LED), MP_ROM_PTR(&pin_GPIO22) },
+    { MP_ROM_QSTR(MP_QSTR_L), MP_ROM_PTR(&pin_GPIO22) },
+    { MP_ROM_QSTR(MP_QSTR_D22), MP_ROM_PTR(&pin_GPIO22) },
+
+    { MP_ROM_QSTR(MP_QSTR_BUTTON), MP_ROM_PTR(&pin_GPIO36) },
+    { MP_ROM_QSTR(MP_QSTR_REC), MP_ROM_PTR(&pin_GPIO36) },
+    { MP_ROM_QSTR(MP_QSTR_SW36), MP_ROM_PTR(&pin_GPIO36) },
+
+    { MP_ROM_QSTR(MP_QSTR_BUTTON), MP_ROM_PTR(&pin_GPIO39) },
+    { MP_ROM_QSTR(MP_QSTR_MODE), MP_ROM_PTR(&pin_GPIO39) },
+    { MP_ROM_QSTR(MP_QSTR_SW39), MP_ROM_PTR(&pin_GPIO39) },
+
+    { MP_ROM_QSTR(MP_QSTR_I2C), MP_ROM_PTR(&board_i2c_obj) },
+    { MP_ROM_QSTR(MP_QSTR_SPI), MP_ROM_PTR(&board_spi_obj) }
+};
+MP_DEFINE_CONST_DICT(board_module_globals, board_module_globals_table);
diff --git a/ports/espressif/boards/espressif_esp32_lyrat/sdkconfig b/ports/espressif/boards/espressif_esp32_lyrat/sdkconfig
new file mode 100644
index 0000000000..4b2981ba62
--- /dev/null
+++ b/ports/espressif/boards/espressif_esp32_lyrat/sdkconfig
@@ -0,0 +1,37 @@
+CONFIG_ESP32_SPIRAM_SUPPORT=y
+# SPI RAM config
+#
+CONFIG_SPIRAM_TYPE_AUTO=y
+# CONFIG_SPIRAM_TYPE_ESPPSRAM16 is not set
+# CONFIG_SPIRAM_TYPE_ESPPSRAM32 is not set
+# CONFIG_SPIRAM_TYPE_ESPPSRAM64 is not set
+CONFIG_SPIRAM_SIZE=4194304
+CONFIG_SPIRAM_SPEED_40M=y
+CONFIG_SPIRAM=y
+CONFIG_SPIRAM_BOOT_INIT=y
+CONFIG_SPIRAM_IGNORE_NOTFOUND=y
+CONFIG_SPIRAM_USE_MEMMAP=y
+# CONFIG_SPIRAM_USE_CAPS_ALLOC is not set
+# CONFIG_SPIRAM_USE_MALLOC is not set
+CONFIG_SPIRAM_MEMTEST=y
+# CONFIG_SPIRAM_ALLOW_BSS_SEG_EXTERNAL_MEMORY is not set
+# CONFIG_SPIRAM_ALLOW_NOINIT_SEG_EXTERNAL_MEMORY is not set
+CONFIG_SPIRAM_CACHE_WORKAROUND=y
+
+# Uncomment (remove ###) to send ESP_LOG  output to TX/RX pins
+### #
+### # ESP System Settings
+### #
+### CONFIG_ESP_SYSTEM_PANIC_PRINT_HALT=y
+### # CONFIG_ESP_SYSTEM_PANIC_SILENT_REBOOT is not set
+### CONFIG_ESP_CONSOLE_UART_CUSTOM=y
+### # CONFIG_ESP_CONSOLE_NONE is not set
+### CONFIG_ESP_CONSOLE_UART=y
+### CONFIG_ESP_CONSOLE_UART_CUSTOM_NUM_0=y
+### # CONFIG_ESP_CONSOLE_UART_CUSTOM_NUM_1 is not set
+### CONFIG_ESP_CONSOLE_UART_NUM=0
+### CONFIG_ESP_CONSOLE_UART_TX_GPIO=8
+### CONFIG_ESP_CONSOLE_UART_RX_GPIO=7
+### CONFIG_ESP_CONSOLE_UART_BAUDRATE=115200
+### # CONFIG_ESP_SYSTEM_CHECK_INT_LEVEL_5 is not set
+### # end of ESP System Settings
diff --git a/py/circuitpy_mpconfig.h b/py/circuitpy_mpconfig.h
index 8bfb69297a..95a95fa12f 100644
--- a/py/circuitpy_mpconfig.h
+++ b/py/circuitpy_mpconfig.h
@@ -145,6 +145,7 @@ extern void common_hal_mcu_enable_interrupts(void);
 #define MICROPY_REPL_AUTO_INDENT         (1)
 #define MICROPY_REPL_EVENT_DRIVEN        (0)
 #define MICROPY_ENABLE_PYSTACK           (1)
+#define CIRCUITPY_SETTABLE_PYSTACK       (1)
 #define MICROPY_STACK_CHECK              (1)
 #define MICROPY_STREAMS_NON_BLOCK        (1)
 #ifndef MICROPY_USE_INTERNAL_PRINTF