diff --git a/README.md b/README.md
index 4dfe6c46..99364207 100644
--- a/README.md
+++ b/README.md
@@ -75,6 +75,8 @@ minmea is released under the DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE v2.
 
 Code for STM32F405 USB driver is released under the MCD-ST Liberty SW License Agreement V2.
 
+uf2conf.py and related files are released by Microsoft Corporation under MIT license.
+
 ## Credits
 
 OpenRTX is being made by:
diff --git a/meson.build b/meson.build
index c1a0a37d..bf3d1beb 100644
--- a/meson.build
+++ b/meson.build
@@ -605,13 +605,14 @@ elif build_machine.system() == 'windows'
 endif
 gd77_loader = find_program('scripts/gd-77_firmware_loader.py', required:false, disabler:true)
 dfu_util    = find_program('dfu-util',                         required:false, disabler:true)
-west        = find_program('west',                              required:false, disabler:true)
+west        = find_program('west',                             required:false, disabler:true)
+uf2conv     = find_program('scripts/uf2conv.py',               required:false, disabler:true)
 
 foreach t : targets
 
   name = 'openrtx_'+t['name']
 
-  # ttwrplus is a Zephyr target, thus we only wrap west
+  # ttwrplus is a Zephyr target, we compile it using west and package it in uf2 format
   if name == 'openrtx_ttwrplus'
 
       txt = custom_target('Copy CMakeLists.txt',
@@ -626,10 +627,15 @@ foreach t : targets
                           output  : name+'_bin',
                           command : [west, 'build', '-b', 'ttwrplus', '-d', '.', '..'])
 
+      uf2 = custom_target(name+'_uf2',
+                          input   : bin,
+                          output  : name+'.uf2',
+                          command : [uf2conv, 'zephyr/zephyr.bin', '-c', '-f', 'ESP32S3', '-b', '0x0', '-o', '@OUTPUT@'])
+
       custom_target(name+'_flash',
-                    input   : bin,
+                    input   : uf2,
                     output  : name+'_flash',
-                    command : [west, 'flash'])
+                    command : [uf2conv, '-D', '@INPUT@'])
 
   else
 
diff --git a/platform/targets/ttwrplus/ttwrplus_defconfig b/platform/targets/ttwrplus/ttwrplus_defconfig
index 648f7546..cd8dc8da 100644
--- a/platform/targets/ttwrplus/ttwrplus_defconfig
+++ b/platform/targets/ttwrplus/ttwrplus_defconfig
@@ -1,5 +1,4 @@
 CONFIG_SOC_SERIES_ESP32S3=y
-CONFIG_BOOTLOADER_MCUBOOT=y
 CONFIG_DISPLAY=y
 CONFIG_SSD1306=y
 CONFIG_THREAD_STACK_INFO=y
diff --git a/scripts/uf2conv.py b/scripts/uf2conv.py
new file mode 100755
index 00000000..41cde18f
--- /dev/null
+++ b/scripts/uf2conv.py
@@ -0,0 +1,361 @@
+#!/usr/bin/env python3
+import sys
+import struct
+import subprocess
+import re
+import os
+import os.path
+import argparse
+import json
+from time import sleep
+
+
+UF2_MAGIC_START0 = 0x0A324655 # "UF2\n"
+UF2_MAGIC_START1 = 0x9E5D5157 # Randomly selected
+UF2_MAGIC_END    = 0x0AB16F30 # Ditto
+
+INFO_FILE = "/INFO_UF2.TXT"
+
+appstartaddr = 0x2000
+familyid = 0x0
+
+
+def is_uf2(buf):
+    w = struct.unpack("<II", buf[0:8])
+    return w[0] == UF2_MAGIC_START0 and w[1] == UF2_MAGIC_START1
+
+def is_hex(buf):
+    try:
+        w = buf[0:30].decode("utf-8")
+    except UnicodeDecodeError:
+        return False
+    if w[0] == ':' and re.match(b"^[:0-9a-fA-F\r\n]+$", buf):
+        return True
+    return False
+
+def convert_from_uf2(buf):
+    global appstartaddr
+    global familyid
+    numblocks = len(buf) // 512
+    curraddr = None
+    currfamilyid = None
+    families_found = {}
+    prev_flag = None
+    all_flags_same = True
+    outp = []
+    for blockno in range(numblocks):
+        ptr = blockno * 512
+        block = buf[ptr:ptr + 512]
+        hd = struct.unpack(b"<IIIIIIII", block[0:32])
+        if hd[0] != UF2_MAGIC_START0 or hd[1] != UF2_MAGIC_START1:
+            print("Skipping block at " + ptr + "; bad magic")
+            continue
+        if hd[2] & 1:
+            # NO-flash flag set; skip block
+            continue
+        datalen = hd[4]
+        if datalen > 476:
+            assert False, "Invalid UF2 data size at " + ptr
+        newaddr = hd[3]
+        if (hd[2] & 0x2000) and (currfamilyid == None):
+            currfamilyid = hd[7]
+        if curraddr == None or ((hd[2] & 0x2000) and hd[7] != currfamilyid):
+            currfamilyid = hd[7]
+            curraddr = newaddr
+            if familyid == 0x0 or familyid == hd[7]:
+                appstartaddr = newaddr
+        padding = newaddr - curraddr
+        if padding < 0:
+            assert False, "Block out of order at " + ptr
+        if padding > 10*1024*1024:
+            assert False, "More than 10M of padding needed at " + ptr
+        if padding % 4 != 0:
+            assert False, "Non-word padding size at " + ptr
+        while padding > 0:
+            padding -= 4
+            outp.append(b"\x00\x00\x00\x00")
+        if familyid == 0x0 or ((hd[2] & 0x2000) and familyid == hd[7]):
+            outp.append(block[32 : 32 + datalen])
+        curraddr = newaddr + datalen
+        if hd[2] & 0x2000:
+            if hd[7] in families_found.keys():
+                if families_found[hd[7]] > newaddr:
+                    families_found[hd[7]] = newaddr
+            else:
+                families_found[hd[7]] = newaddr
+        if prev_flag == None:
+            prev_flag = hd[2]
+        if prev_flag != hd[2]:
+            all_flags_same = False
+        if blockno == (numblocks - 1):
+            print("--- UF2 File Header Info ---")
+            families = load_families()
+            for family_hex in families_found.keys():
+                family_short_name = ""
+                for name, value in families.items():
+                    if value == family_hex:
+                        family_short_name = name
+                print("Family ID is {:s}, hex value is 0x{:08x}".format(family_short_name,family_hex))
+                print("Target Address is 0x{:08x}".format(families_found[family_hex]))
+            if all_flags_same:
+                print("All block flag values consistent, 0x{:04x}".format(hd[2]))
+            else:
+                print("Flags were not all the same")
+            print("----------------------------")
+            if len(families_found) > 1 and familyid == 0x0:
+                outp = []
+                appstartaddr = 0x0
+    return b"".join(outp)
+
+def convert_to_carray(file_content):
+    outp = "const unsigned long bindata_len = %d;\n" % len(file_content)
+    outp += "const unsigned char bindata[] __attribute__((aligned(16))) = {"
+    for i in range(len(file_content)):
+        if i % 16 == 0:
+            outp += "\n"
+        outp += "0x%02x, " % file_content[i]
+    outp += "\n};\n"
+    return bytes(outp, "utf-8")
+
+def convert_to_uf2(file_content):
+    global familyid
+    datapadding = b""
+    while len(datapadding) < 512 - 256 - 32 - 4:
+        datapadding += b"\x00\x00\x00\x00"
+    numblocks = (len(file_content) + 255) // 256
+    outp = []
+    for blockno in range(numblocks):
+        ptr = 256 * blockno
+        chunk = file_content[ptr:ptr + 256]
+        flags = 0x0
+        if familyid:
+            flags |= 0x2000
+        hd = struct.pack(b"<IIIIIIII",
+            UF2_MAGIC_START0, UF2_MAGIC_START1,
+            flags, ptr + appstartaddr, 256, blockno, numblocks, familyid)
+        while len(chunk) < 256:
+            chunk += b"\x00"
+        block = hd + chunk + datapadding + struct.pack(b"<I", UF2_MAGIC_END)
+        assert len(block) == 512
+        outp.append(block)
+    return b"".join(outp)
+
+class Block:
+    def __init__(self, addr):
+        self.addr = addr
+        self.bytes = bytearray(256)
+
+    def encode(self, blockno, numblocks):
+        global familyid
+        flags = 0x0
+        if familyid:
+            flags |= 0x2000
+        hd = struct.pack("<IIIIIIII",
+            UF2_MAGIC_START0, UF2_MAGIC_START1,
+            flags, self.addr, 256, blockno, numblocks, familyid)
+        hd += self.bytes[0:256]
+        while len(hd) < 512 - 4:
+            hd += b"\x00"
+        hd += struct.pack("<I", UF2_MAGIC_END)
+        return hd
+
+def convert_from_hex_to_uf2(buf):
+    global appstartaddr
+    appstartaddr = None
+    upper = 0
+    currblock = None
+    blocks = []
+    for line in buf.split('\n'):
+        if line[0] != ":":
+            continue
+        i = 1
+        rec = []
+        while i < len(line) - 1:
+            rec.append(int(line[i:i+2], 16))
+            i += 2
+        tp = rec[3]
+        if tp == 4:
+            upper = ((rec[4] << 8) | rec[5]) << 16
+        elif tp == 2:
+            upper = ((rec[4] << 8) | rec[5]) << 4
+        elif tp == 1:
+            break
+        elif tp == 0:
+            addr = upper + ((rec[1] << 8) | rec[2])
+            if appstartaddr == None:
+                appstartaddr = addr
+            i = 4
+            while i < len(rec) - 1:
+                if not currblock or currblock.addr & ~0xff != addr & ~0xff:
+                    currblock = Block(addr & ~0xff)
+                    blocks.append(currblock)
+                currblock.bytes[addr & 0xff] = rec[i]
+                addr += 1
+                i += 1
+    numblocks = len(blocks)
+    resfile = b""
+    for i in range(0, numblocks):
+        resfile += blocks[i].encode(i, numblocks)
+    return resfile
+
+def to_str(b):
+    return b.decode("utf-8")
+
+def get_drives():
+    drives = []
+    if sys.platform == "win32":
+        r = subprocess.check_output(["wmic", "PATH", "Win32_LogicalDisk",
+                                     "get", "DeviceID,", "VolumeName,",
+                                     "FileSystem,", "DriveType"])
+        for line in to_str(r).split('\n'):
+            words = re.split('\s+', line)
+            if len(words) >= 3 and words[1] == "2" and words[2] == "FAT":
+                drives.append(words[0])
+    else:
+        searchpaths = ["/media"]
+        if sys.platform == "darwin":
+            searchpaths = ["/Volumes"]
+        elif sys.platform == "linux":
+            searchpaths += ["/media/" + os.environ["USER"], '/run/media/' + os.environ["USER"]]
+
+        for rootpath in searchpaths:
+            if os.path.isdir(rootpath):
+                for d in os.listdir(rootpath):
+                    if os.path.isdir(rootpath):
+                        drives.append(os.path.join(rootpath, d))
+
+
+    def has_info(d):
+        try:
+            return os.path.isfile(d + INFO_FILE)
+        except:
+            return False
+
+    return list(filter(has_info, drives))
+
+
+def board_id(path):
+    with open(path + INFO_FILE, mode='r') as file:
+        file_content = file.read()
+    return re.search("Board-ID: ([^\r\n]*)", file_content).group(1)
+
+
+def list_drives():
+    for d in get_drives():
+        print(d, board_id(d))
+
+
+def write_file(name, buf):
+    with open(name, "wb") as f:
+        f.write(buf)
+    print("Wrote %d bytes to %s" % (len(buf), name))
+
+
+def load_families():
+    # The expectation is that the `uf2families.json` file is in the same
+    # directory as this script. Make a path that works using `__file__`
+    # which contains the full path to this script.
+    filename = "uf2families.json"
+    pathname = os.path.join(os.path.dirname(os.path.abspath(__file__)), filename)
+    with open(pathname) as f:
+        raw_families = json.load(f)
+
+    families = {}
+    for family in raw_families:
+        families[family["short_name"]] = int(family["id"], 0)
+
+    return families
+
+
+def main():
+    global appstartaddr, familyid
+    def error(msg):
+        print(msg, file=sys.stderr)
+        sys.exit(1)
+    parser = argparse.ArgumentParser(description='Convert to UF2 or flash directly.')
+    parser.add_argument('input', metavar='INPUT', type=str, nargs='?',
+                        help='input file (HEX, BIN or UF2)')
+    parser.add_argument('-b', '--base', dest='base', type=str,
+                        default="0x2000",
+                        help='set base address of application for BIN format (default: 0x2000)')
+    parser.add_argument('-f', '--family', dest='family', type=str,
+                        default="0x0",
+                        help='specify familyID - number or name (default: 0x0)')
+    parser.add_argument('-o', '--output', metavar="FILE", dest='output', type=str,
+                        help='write output to named file; defaults to "flash.uf2" or "flash.bin" where sensible')
+    parser.add_argument('-d', '--device', dest="device_path",
+                        help='select a device path to flash')
+    parser.add_argument('-l', '--list', action='store_true',
+                        help='list connected devices')
+    parser.add_argument('-c', '--convert', action='store_true',
+                        help='do not flash, just convert')
+    parser.add_argument('-D', '--deploy', action='store_true',
+                        help='just flash, do not convert')
+    parser.add_argument('-w', '--wait', action='store_true',
+                        help='wait for device to flash')
+    parser.add_argument('-C', '--carray', action='store_true',
+                        help='convert binary file to a C array, not UF2')
+    parser.add_argument('-i', '--info', action='store_true',
+                        help='display header information from UF2, do not convert')
+    args = parser.parse_args()
+    appstartaddr = int(args.base, 0)
+
+    families = load_families()
+
+    if args.family.upper() in families:
+        familyid = families[args.family.upper()]
+    else:
+        try:
+            familyid = int(args.family, 0)
+        except ValueError:
+            error("Family ID needs to be a number or one of: " + ", ".join(families.keys()))
+
+    if args.list:
+        list_drives()
+    else:
+        if not args.input:
+            error("Need input file")
+        with open(args.input, mode='rb') as f:
+            inpbuf = f.read()
+        from_uf2 = is_uf2(inpbuf)
+        ext = "uf2"
+        if args.deploy:
+            outbuf = inpbuf
+        elif from_uf2 and not args.info:
+            outbuf = convert_from_uf2(inpbuf)
+            ext = "bin"
+        elif from_uf2 and args.info:
+            outbuf = ""
+            convert_from_uf2(inpbuf)
+        elif is_hex(inpbuf):
+            outbuf = convert_from_hex_to_uf2(inpbuf.decode("utf-8"))
+        elif args.carray:
+            outbuf = convert_to_carray(inpbuf)
+            ext = "h"
+        else:
+            outbuf = convert_to_uf2(inpbuf)
+        if not args.deploy and not args.info:
+            print("Converted to %s, output size: %d, start address: 0x%x" %
+                  (ext, len(outbuf), appstartaddr))
+        if args.convert or ext != "uf2":
+            if args.output == None:
+                args.output = "flash." + ext
+        if args.output:
+            write_file(args.output, outbuf)
+        if ext == "uf2" and not args.convert and not args.info:
+            drives = get_drives()
+            if len(drives) == 0:
+                if args.wait:
+                    print("Waiting for drive to deploy...")
+                    while len(drives) == 0:
+                        sleep(0.1)
+                        drives = get_drives()
+                elif not args.output:
+                    error("No drive to deploy.")
+            for d in drives:
+                print("Flashing %s (%s)" % (d, board_id(d)))
+                write_file(d + "/NEW.UF2", outbuf)
+
+
+if __name__ == "__main__":
+    main()
diff --git a/scripts/uf2families.json b/scripts/uf2families.json
new file mode 100644
index 00000000..14c8e5d0
--- /dev/null
+++ b/scripts/uf2families.json
@@ -0,0 +1,247 @@
+[
+    {
+        "id": "0x16573617",
+        "short_name": "ATMEGA32",
+        "description": "Microchip (Atmel) ATmega32"
+    },
+    {
+        "id": "0x1851780a",
+        "short_name": "SAML21",
+        "description": "Microchip (Atmel) SAML21"
+    },
+    {
+        "id": "0x1b57745f",
+        "short_name": "NRF52",
+        "description": "Nordic NRF52"
+    },
+    {
+        "id": "0x1c5f21b0",
+        "short_name": "ESP32",
+        "description": "ESP32"
+    },
+    {
+        "id": "0x1e1f432d",
+        "short_name": "STM32L1",
+        "description": "ST STM32L1xx"
+    },
+    {
+        "id": "0x202e3a91",
+        "short_name": "STM32L0",
+        "description": "ST STM32L0xx"
+    },
+    {
+        "id": "0x21460ff0",
+        "short_name": "STM32WL",
+        "description": "ST STM32WLxx"
+    },
+    {
+        "id": "0x2abc77ec",
+        "short_name": "LPC55",
+        "description": "NXP LPC55xx"
+    },
+    {
+        "id": "0x300f5633",
+        "short_name": "STM32G0",
+        "description": "ST STM32G0xx"
+    },
+    {
+        "id": "0x31d228c6",
+        "short_name": "GD32F350",
+        "description": "GD32F350"
+    },
+    {
+        "id": "0x04240bdf",
+        "short_name": "STM32L5",
+        "description": "ST STM32L5xx"
+    },
+    {
+        "id": "0x4c71240a",
+        "short_name": "STM32G4",
+        "description": "ST STM32G4xx"
+    },
+    {
+        "id": "0x4fb2d5bd",
+        "short_name": "MIMXRT10XX",
+        "description": "NXP i.MX RT10XX"
+    },
+    {
+        "id": "0x53b80f00",
+        "short_name": "STM32F7",
+        "description": "ST STM32F7xx"
+    },
+    {
+        "id": "0x55114460",
+        "short_name": "SAMD51",
+        "description": "Microchip (Atmel) SAMD51"
+    },
+    {
+        "id": "0x57755a57",
+        "short_name": "STM32F4",
+        "description": "ST STM32F4xx"
+    },
+    {
+        "id": "0x5a18069b",
+        "short_name": "FX2",
+        "description": "Cypress FX2"
+    },
+    {
+        "id": "0x5d1a0a2e",
+        "short_name": "STM32F2",
+        "description": "ST STM32F2xx"
+    },
+    {
+        "id": "0x5ee21072",
+        "short_name": "STM32F1",
+        "description": "ST STM32F103"
+    },
+    {
+        "id": "0x621e937a",
+        "short_name": "NRF52833",
+        "description": "Nordic NRF52833"
+    },
+    {
+        "id": "0x647824b6",
+        "short_name": "STM32F0",
+        "description": "ST STM32F0xx"
+    },
+    {
+        "id": "0x68ed2b88",
+        "short_name": "SAMD21",
+        "description": "Microchip (Atmel) SAMD21"
+    },
+    {
+        "id": "0x6b846188",
+        "short_name": "STM32F3",
+        "description": "ST STM32F3xx"
+    },
+    {
+        "id": "0x6d0922fa",
+        "short_name": "STM32F407",
+        "description": "ST STM32F407"
+    },
+    {
+        "id": "0x6db66082",
+        "short_name": "STM32H7",
+        "description": "ST STM32H7xx"
+    },
+    {
+        "id": "0x70d16653",
+        "short_name": "STM32WB",
+        "description": "ST STM32WBxx"
+    },
+    {
+        "id": "0x7eab61ed",
+        "short_name": "ESP8266",
+        "description": "ESP8266"
+    },
+    {
+        "id": "0x7f83e793",
+        "short_name": "KL32L2",
+        "description": "NXP KL32L2x"
+    },
+    {
+        "id": "0x8fb060fe",
+        "short_name": "STM32F407VG",
+        "description": "ST STM32F407VG"
+    },
+    {
+        "id": "0xada52840",
+        "short_name": "NRF52840",
+        "description": "Nordic NRF52840"
+    },
+    {
+        "id": "0xbfdd4eee",
+        "short_name": "ESP32S2",
+        "description": "ESP32-S2"
+    },
+    {
+        "id": "0xc47e5767",
+        "short_name": "ESP32S3",
+        "description": "ESP32-S3"
+    },
+    {
+        "id": "0xd42ba06c",
+        "short_name": "ESP32C3",
+        "description": "ESP32-C3"
+    },
+    {
+        "id": "0x2b88d29c",
+        "short_name": "ESP32C2",
+        "description": "ESP32-C2"
+    },
+    {
+        "id": "0x332726f6",
+        "short_name": "ESP32H2",
+        "description": "ESP32-H2"
+    },
+    {
+        "id": "0x540ddf62",
+        "short_name": "ESP32C6",
+        "description": "ESP32-C6"
+    },
+    {
+        "id": "0x3d308e94",
+        "short_name": "ESP32P4",
+        "description": "ESP32-P4"
+    },
+    {
+        "id": "0xe48bff56",
+        "short_name": "RP2040",
+        "description": "Raspberry Pi RP2040"
+    },
+    {
+        "id": "0x00ff6919",
+        "short_name": "STM32L4",
+        "description": "ST STM32L4xx"
+    },
+    {
+        "id": "0x9af03e33",
+        "short_name": "GD32VF103",
+        "description": "GigaDevice GD32VF103"
+    },
+    {
+        "id": "0x4f6ace52",
+        "short_name": "CSK4",
+        "description": "LISTENAI CSK300x/400x"
+    },
+    {
+        "id": "0x6e7348a8",
+        "short_name": "CSK6",
+        "description": "LISTENAI CSK60xx"
+    },
+    {
+        "id": "0x11de784a",
+        "short_name": "M0SENSE",
+        "description": "M0SENSE BL702"
+    },
+    {
+        "id": "0x4b684d71",
+        "short_name": "MaixPlay-U4",
+        "description": "Sipeed MaixPlay-U4(BL618)"
+    },
+    {
+        "id": "0x9517422f",
+        "short_name": "RZA1LU",
+        "description": "Renesas RZ/A1LU (R7S7210xx)"
+    },
+    {
+        "id": "0x2dc309c5",
+        "short_name": "STM32F411xE",
+        "description": "ST STM32F411xE"
+    },
+    {
+        "id": "0x06d1097b",
+        "short_name": "STM32F411xC",
+        "description": "ST STM32F411xC"
+    },
+    {
+        "id": "0x72721d4e",
+        "short_name": "NRF52832xxAA",
+        "description": "Nordic NRF52832xxAA"
+    },
+    {
+        "id": "0x6f752678",
+        "short_name": "NRF52832xxAB",
+        "description": "Nordic NRF52832xxAB"
+    }
+]