diff --git a/.gitignore b/.gitignore
index f16dafc1..3772f9dd 100644
--- a/.gitignore
+++ b/.gitignore
@@ -11,3 +11,4 @@ compile_commands.json
 k5_eeprom.raw
 
 /build
+/serialtool/__pycache__
\ No newline at end of file
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 81e336e2..23bf8fcb 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -75,6 +75,9 @@ target_link_options(${EXE_NAME} PRIVATE "-Wl,-Map=${EXE_NAME}.map")
 # Add the map file to the list of files to be removed with 'clean' target
 set_target_properties(${EXE_NAME} PROPERTIES ADDITIONAL_CLEAN_FILES ${EXE_NAME}.map)
 
+# Force linker to ignore RWX segment warning even if cache exists
+target_link_options(${EXE_NAME} PRIVATE -Wl,--no-warn-rwx-segment)
+
 # -----------------------------------
 #  Post build processing
 #
diff --git a/CMakePresets.json b/CMakePresets.json
index e3ee6736..b913c5f2 100644
--- a/CMakePresets.json
+++ b/CMakePresets.json
@@ -77,7 +77,9 @@
             "cacheVariables": {
                 "ENABLE_VOICE": false,
                 "ENABLE_SWD": true,
-                "ENABLE_AIRCOPY": false
+                "ENABLE_AIRCOPY": false,
+                "EDITION_STRING": "Custom",
+                "TARGET": "f4hwn.custom"
             }
         },
         {
diff --git a/Dockerfile b/Dockerfile
index 0c67b544..dbe663a1 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,11 +1,36 @@
-ARG BUILDPLATFORM
-FROM --platform=${BUILDPLATFORM} archlinux:latest
-RUN pacman -Syyu base-devel --noconfirm
-RUN pacman -Syyu arm-none-eabi-gcc --noconfirm
-RUN pacman -Syyu arm-none-eabi-newlib --noconfirm
-RUN pacman -Syyu git --noconfirm
-RUN pacman -Syyu python-pip --noconfirm
-RUN pacman -Syyu python-crcmod --noconfirm
-WORKDIR /app
-COPY . .
-RUN git submodule update --init --recursive
\ No newline at end of file
+FROM debian:bookworm-slim
+
+# ---------------------------------------------
+# Install required packages
+# ---------------------------------------------
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    build-essential cmake ninja-build python3 curl xz-utils ca-certificates \
+ && rm -rf /var/lib/apt/lists/*
+
+# ---------------------------------------------
+# Download and install ARM GCC toolchain
+# Supports both Apple Silicon (arm64) and Intel (amd64)
+# ---------------------------------------------
+ARG TARGETARCH
+ARG ARM_GCC_VERSION=13.3.rel1
+
+RUN set -eux; \
+    if [ "${TARGETARCH}" = "arm64" ]; then HOSTARCH="aarch64"; else HOSTARCH="x86_64"; fi; \
+    TARBALL="arm-gnu-toolchain-${ARM_GCC_VERSION}-${HOSTARCH}-arm-none-eabi.tar.xz"; \
+    URL="https://armkeil.blob.core.windows.net/developer/Files/downloads/gnu/${ARM_GCC_VERSION}/binrel/${TARBALL}"; \
+    echo "Downloading ${URL}"; \
+    curl -fL -O "${URL}"; \
+    tar -xf "${TARBALL}"; \
+    rm "${TARBALL}"; \
+    DIR="$(ls -d arm-gnu-toolchain-${ARM_GCC_VERSION}-*-arm-none-eabi)"; \
+    mv "${DIR}" /opt/toolchain
+
+# ---------------------------------------------
+# Add toolchain to PATH
+# ---------------------------------------------
+ENV PATH="/opt/toolchain/bin:${PATH}"
+
+# ---------------------------------------------
+# Set working directory
+# ---------------------------------------------
+WORKDIR /src
diff --git a/cmake/gcc-arm-none-eabi.cmake b/cmake/gcc-arm-none-eabi.cmake
index 1803fa54..10971efb 100644
--- a/cmake/gcc-arm-none-eabi.cmake
+++ b/cmake/gcc-arm-none-eabi.cmake
@@ -40,3 +40,7 @@ set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} --specs=nano.specs")
 set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,--gc-sections")
 set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,--print-memory-usage")
 set(TOOLCHAIN_LINK_LIBRARIES "m")
+
+# Suppress harmless "RWX segment" warning
+set(CMAKE_EXE_LINKER_FLAGS_INIT
+    "--specs=nosys.specs -Wl,--gc-sections -Wl,--no-warn-rwx-segment")
diff --git a/compile-with-docker.sh b/compile-with-docker.sh
index 8a52a821..ca1c9ccc 100755
--- a/compile-with-docker.sh
+++ b/compile-with-docker.sh
@@ -1,180 +1,46 @@
-#!/bin/sh
+#!/usr/bin/env bash
+set -euo pipefail
 
-IMAGE_NAME="uvk5"
-FIRMWARE_DIR="${PWD}/compiled-firmware"
+# ---------------------------------------------
+# Usage:
+#   ./compile-with-docker.sh [Preset]
+# Example:
+#   ./compile-with-docker.sh Custom
+#   ./compile-with-docker.sh Bandscope
+#   ./compile-with-docker.sh Broadcast
+#   ./compile-with-docker.sh Basic
+#   ./compile-with-docker.sh RescueOps
+#   ./compile-with-docker.sh Game
+# Default preset: "Custom"
+# ---------------------------------------------
 
-# Create firmware output directory if it doesn't exist
-mkdir -p "$FIRMWARE_DIR"
+IMAGE=uvk1-uvk5v3
+PRESET=${1:-Custom}
 
-# Clean previously compiled firmware files
-rm -f "$FIRMWARE_DIR"/*
-
-# Clean up old Docker artifacts
-echo "🧽 Cleaning up old Docker artifacts..."
-docker system prune -f --volumes >/dev/null 2>&1 || true
-
-# Always rebuild the Docker image to ensure latest code changes
-echo "⚙️ Rebuilding Docker image '$IMAGE_NAME'..."
-docker rmi "$IMAGE_NAME" 2>/dev/null || true
-if ! docker build --build-arg BUILDPLATFORM=linux/amd64 -t "$IMAGE_NAME" .; then
-    echo "❌ Failed to build docker image"
-    exit 1
+# ---------------------------------------------
+# Validate preset name
+# ---------------------------------------------
+if [[ ! "$PRESET" =~ ^(Custom|Bandscope|Broadcast|Basic|RescueOps|Game)$ ]]; then
+  echo "❌ Unknown preset: '$PRESET'"
+  echo "Valid presets are: Custom, Bandscope, Broadcast, Basic, RescueOps, Game"
+  exit 1
 fi
 
-# -------------------- CLEAN ALL ---------------------
+# ---------------------------------------------
+# Build the Docker image (only needed once)
+# ---------------------------------------------
+docker build -t "$IMAGE" .
 
-clean() {
-    echo "🧽 Cleaning all"
-    docker rmi uvk5
-    docker buildx prune -f
-    docker buildx history ls | awk 'NR>1 {print $1}' | xargs docker buildx history rm
-    make clean
-}
+# ---------------------------------------------
+# Clean existing CMake cache to ensure toolchain reload
+# ---------------------------------------------
+rm -rf build
 
-# ------------------ BUILD VARIANTS ------------------
-
-custom() {
-    echo "🔧 Custom compilation..."
-    docker run --rm -v "$FIRMWARE_DIR:/app/compiled-firmware" "$IMAGE_NAME" /bin/bash -c "\
-        rm -f ./compiled-firmware/* && cd /app && make -s \
-        EDITION_STRING=Custom \
-        TARGET=f4hwn.custom \
-        && cp f4hwn.custom* compiled-firmware/"
-}
-
-standard() {
-    echo "📦 Standard compilation..."
-    docker run --rm -v "$FIRMWARE_DIR:/app/compiled-firmware" "$IMAGE_NAME" /bin/bash -c "\
-        rm -f ./compiled-firmware/* && cd /app && make -s \
-        ENABLE_SPECTRUM=0 \
-        ENABLE_FMRADIO=0 \
-        ENABLE_AIRCOPY=0 \
-        ENABLE_NOAA=0 \
-        EDITION_STRING=Standard \
-        TARGET=f4hwn.standard \
-        && cp f4hwn.standard* compiled-firmware/"
-}
-
-bandscope() {
-    echo "📺 Bandscope compilation..."
-    docker run --rm -v "$FIRMWARE_DIR:/app/compiled-firmware" "$IMAGE_NAME" /bin/bash -c "\
-        rm -f ./compiled-firmware/* && cd /app && make -s \
-        ENABLE_SPECTRUM=1 \
-        ENABLE_FMRADIO=0 \
-        ENABLE_VOX=0 \
-        ENABLE_AIRCOPY=1 \
-        ENABLE_FEAT_F4HWN_SCREENSHOT=1 \
-        ENABLE_FEAT_F4HWN_GAME=0 \
-        ENABLE_FEAT_F4HWN_PMR=1 \
-        ENABLE_FEAT_F4HWN_GMRS_FRS_MURS=1 \
-        ENABLE_NOAA=0 \
-        ENABLE_FEAT_F4HWN_RESCUE_OPS=0 \
-        EDITION_STRING=Bandscope \
-        TARGET=f4hwn.bandscope \
-        && cp f4hwn.bandscope* compiled-firmware/"
-}
-
-broadcast() {
-    echo "📻 Broadcast compilation..."
-    docker run --rm -v "$FIRMWARE_DIR:/app/compiled-firmware" "$IMAGE_NAME" /bin/bash -c "\
-        cd /app && make -s \
-        ENABLE_SPECTRUM=0 \
-        ENABLE_FMRADIO=1 \
-        ENABLE_VOX=1 \
-        ENABLE_AIRCOPY=1 \
-        ENABLE_FEAT_F4HWN_SCREENSHOT=1 \
-        ENABLE_FEAT_F4HWN_GAME=0 \
-        ENABLE_FEAT_F4HWN_PMR=1 \
-        ENABLE_FEAT_F4HWN_GMRS_FRS_MURS=1 \
-        ENABLE_NOAA=0 \
-        ENABLE_FEAT_F4HWN_RESCUE_OPS=0 \
-        EDITION_STRING=Broadcast \
-        TARGET=f4hwn.broadcast \
-        && cp f4hwn.broadcast* compiled-firmware/"
-}
-
-basic() {
-    echo "☘️ Basic compilation..."
-    docker run --rm -v "$FIRMWARE_DIR:/app/compiled-firmware" "$IMAGE_NAME" /bin/bash -c "\
-        cd /app && make -s \
-        ENABLE_SPECTRUM=1 \
-        ENABLE_FMRADIO=1 \
-        ENABLE_VOX=0 \
-        ENABLE_AIRCOPY=0 \
-        ENABLE_FEAT_F4HWN_GAME=0 \
-        ENABLE_FEAT_F4HWN_SPECTRUM=0 \
-        ENABLE_FEAT_F4HWN_PMR=1 \
-        ENABLE_FEAT_F4HWN_GMRS_FRS_MURS=1 \
-        ENABLE_NOAA=0 \
-        ENABLE_AUDIO_BAR=0 \
-        ENABLE_FEAT_F4HWN_RESUME_STATE=0 \
-        ENABLE_FEAT_F4HWN_CHARGING_C=0 \
-        ENABLE_FEAT_F4HWN_INV=1 \
-        ENABLE_FEAT_F4HWN_CTR=0 \
-        ENABLE_FEAT_F4HWN_NARROWER=1 \
-        ENABLE_FEAT_F4HWN_RESCUE_OPS=0 \
-        EDITION_STRING=Basic \
-        TARGET=f4hwn.basic \
-        && cp f4hwn.basic* compiled-firmware/"
-}
-
-rescueops() {
-    echo "🚨 RescueOps compilation..."
-    docker run --rm -v "$FIRMWARE_DIR:/app/compiled-firmware" "$IMAGE_NAME" /bin/bash -c "\
-        cd /app && make -s \
-        ENABLE_SPECTRUM=0 \
-        ENABLE_FMRADIO=0 \
-        ENABLE_VOX=1 \
-        ENABLE_AIRCOPY=1 \
-        ENABLE_FEAT_F4HWN_SCREENSHOT=1 \
-        ENABLE_FEAT_F4HWN_GAME=0 \
-        ENABLE_FEAT_F4HWN_PMR=1 \
-        ENABLE_FEAT_F4HWN_GMRS_FRS_MURS=1 \
-        ENABLE_NOAA=1 \
-        ENABLE_FEAT_F4HWN_RESCUE_OPS=1 \
-        EDITION_STRING=RescueOps \
-        TARGET=f4hwn.rescueops \
-        && cp f4hwn.rescueops* compiled-firmware/"
-}
-
-game() {
-    echo "🎮 Game compilation..."
-    docker run --rm -v "$FIRMWARE_DIR:/app/compiled-firmware" "$IMAGE_NAME" /bin/bash -c "\
-        cd /app && make -s \
-        ENABLE_SPECTRUM=0 \
-        ENABLE_FMRADIO=1 \
-        ENABLE_VOX=0 \
-        ENABLE_AIRCOPY=1 \
-        ENABLE_FEAT_F4HWN_GAME=1 \
-        ENABLE_FEAT_F4HWN_PMR=1 \
-        ENABLE_FEAT_F4HWN_GMRS_FRS_MURS=1 \
-        ENABLE_NOAA=0 \
-        ENABLE_FEAT_F4HWN_RESCUE_OPS=0 \
-        EDITION_STRING=Game \
-        TARGET=f4hwn.game \
-        && cp f4hwn.game* compiled-firmware/"
-}
-
-# ------------------ MENU ------------------
-
-case "$1" in
-    clean) clean ;;
-    custom) custom ;;
-    standard) standard ;;
-    bandscope) bandscope ;;
-    broadcast) broadcast ;;
-    basic) basic ;;
-    rescueops) rescueops ;;
-    game) game ;;
-    all)
-        bandscope
-        broadcast
-        basic
-        rescueops
-        game
-        ;;
-    *)
-        echo "Usage: $0 {clean|custom|standard|bandscope|broadcast|basic|rescueops|game|all}"
-        exit 1
-        ;;
-esac
+# ---------------------------------------------
+# Run CMake inside the container with the selected preset
+# ---------------------------------------------
+docker run --rm -it -v "$PWD":/src -w /src "$IMAGE" \
+  bash -c "which arm-none-eabi-gcc && arm-none-eabi-gcc --version && \
+           echo '=== Building preset: ${PRESET} ===' && \
+           cmake --preset ${PRESET} && \
+           cmake --build --preset ${PRESET} -j"