diff --git a/scripts/build.sh b/scripts/build.sh
new file mode 100644
index 0000000..605d95c
--- /dev/null
+++ b/scripts/build.sh
@@ -0,0 +1,185 @@
+#!/bin/bash
+
+# MPVJ Build Script
+# Runs on x86_64 (e.g., Docker) to cross-compile artifacts for aarch64 (RPi 3B).
+# Outputs:
+#   frontend/dist/       — pre-built Vite bundle
+#   bin/ofxPiMapper      — aarch64 binary
+#
+# Usage: bash scripts/build.sh [REPO_DIR]
+#   REPO_DIR defaults to the directory containing this script's parent.
+
+set -e
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+REPO_DIR="${1:-$(dirname "$SCRIPT_DIR")}"
+OF_VERSION="0.12.1"
+OF_DIR="$REPO_DIR/.build/openFrameworks"
+OF_FILE="of_v${OF_VERSION}_linuxaarch64_release.tar.gz"
+OF_URL="https://github.com/openframeworks/openFrameworks/releases/download/${OF_VERSION}/${OF_FILE}"
+BIN_OUT="$REPO_DIR/bin"
+
+# ── Validate repo ────────────────────────────────────────────────────────────
+if [ ! -d "$REPO_DIR/frontend" ] || [ ! -d "$REPO_DIR/backend" ]; then
+  echo "ERROR: $REPO_DIR does not look like the mapper repo (missing frontend/ or backend/)."
+  exit 1
+fi
+echo "Building from: $REPO_DIR"
+
+# ── 1. Install build dependencies ───────────────────────────────────────────
+echo "Installing build dependencies..."
+if command -v apt-get > /dev/null 2>&1; then
+  apt-get update -y
+  DEBIAN_FRONTEND=noninteractive apt-get install -y \
+    git curl wget unzip build-essential \
+    gcc-aarch64-linux-gnu g++-aarch64-linux-gnu \
+    binutils-aarch64-linux-gnu \
+    libmpg123-dev libsndfile1-dev libopenal-dev libassimp-dev \
+    libglew-dev libglfw3-dev liburiparser-dev \
+    libcurl4-openssl-dev libpugixml-dev libasound2-dev \
+    libgstreamer1.0-dev libgstreamer-plugins-base1.0-dev \
+    gstreamer1.0-plugins-good gstreamer1.0-plugins-bad \
+    gstreamer1.0-plugins-ugly gstreamer1.0-libav \
+    libgtk-3-dev libboost-filesystem-dev \
+    libfontconfig1-dev libfreetype-dev libx11-dev \
+    libxrandr-dev libxinerama-dev libxcursor-dev libxi-dev \
+    libpulse-dev libudev-dev libfreeimage-dev librtaudio-dev \
+    freeglut3-dev libxxf86vm-dev
+fi
+
+# Install Node.js if missing
+if ! command -v node > /dev/null 2>&1; then
+  echo "Installing Node.js 20..."
+  curl -fsSL https://deb.nodesource.com/setup_20.x | bash -
+  apt-get install -y nodejs
+fi
+
+# ── 2. Build frontend ────────────────────────────────────────────────────────
+echo ""
+echo "=== Building frontend ==="
+cd "$REPO_DIR/frontend"
+rm -rf node_modules package-lock.json
+npm install --omit=optional --package-lock=false
+NODE_OPTIONS="--max-old-space-size=512" npm run build
+echo "Frontend built → $REPO_DIR/frontend/dist/"
+
+# ── 3. Download OpenFrameworks (aarch64 pre-built release) ───────────────────
+echo ""
+echo "=== Downloading OpenFrameworks ${OF_VERSION} (aarch64) ==="
+mkdir -p "$REPO_DIR/.build"
+if [ ! -d "$OF_DIR" ]; then
+  cd "$REPO_DIR/.build"
+  if [ ! -f "$OF_FILE" ]; then
+    wget "$OF_URL" || curl -L -O "$OF_URL"
+  fi
+  tar -xzf "$OF_FILE"
+  mv of_v${OF_VERSION}_linux*_release openFrameworks
+  rm -f "$OF_FILE"
+  echo "OpenFrameworks extracted to $OF_DIR"
+else
+  echo "OpenFrameworks already present, skipping download."
+fi
+
+# ── 4. Clone & patch ofxPiMapper ────────────────────────────────────────────
+echo ""
+echo "=== Cloning ofxPiMapper ==="
+ADDON_DIR="$OF_DIR/addons/ofxPiMapper"
+rm -rf "$ADDON_DIR"
+git clone --depth 1 https://github.com/kr15h/ofxPiMapper.git "$ADDON_DIR"
+cd "$ADDON_DIR"
+
+echo "Applying compatibility patches..."
+
+# 4a. OscControl.cpp highlight patch
+OSC_FILE=$(find src -name "OscControl.cpp" | head -n 1)
+if [ -n "$OSC_FILE" ]; then
+  echo "Patching $OSC_FILE..."
+  sed -i '/if (m.getAddress() == "\/ofxPiMapper\/surface\/select"){/r /dev/stdin' "$OSC_FILE" <<'EOF_PATCH'
+    if (m.getAddress() == "/ofxPiMapper/surface/highlight"){
+        int surfaceIndex = m.getArgAsInt32(0);
+        mapper->getSurfaceManager()->selectSurface(surfaceIndex);
+        return;
+    }
+EOF_PATCH
+fi
+
+# 4b. C++11 compatibility header
+cat <<'EOF_COMPAT' > src/cpp11_compat.h
+#ifndef OFXPIMAPPER_CPP11_COMPAT_H
+#define OFXPIMAPPER_CPP11_COMPAT_H
+#include <memory>
+#include <utility>
+#include <vector>
+#include <string>
+#include <algorithm>
+#if __cplusplus < 201402L
+namespace std {
+    template<typename T, typename... Args>
+    std::unique_ptr<T> make_unique(Args&&... args) {
+        return std::unique_ptr<T>(new T(std::forward<Args>(args)...));
+    }
+}
+#endif
+using std::unique_ptr;
+using std::make_unique;
+using std::vector;
+using std::string;
+#endif
+EOF_COMPAT
+
+# 4c. Inject compat header into the main addon header
+sed -i '1i #include "cpp11_compat.h"' src/ofxPiMapper.h
+
+# 4d. Qualify unique_ptr / make_unique calls
+find src -type f \( -name "*.h" -o -name "*.cpp" \) \
+  -exec sed -i 's/\([^:a-zA-Z0-9]\)unique_ptr\b/\1std::unique_ptr/g' {} + \
+  -exec sed -i 's/\([^:a-zA-Z0-9]\)make_unique\b/\1std::make_unique/g' {} +
+
+# 4e. Ensure <memory> is included where needed
+for f in $(grep -l "unique_ptr" src/*.h 2>/dev/null || true); do
+  grep -q "<memory>" "$f" || sed -i '1i #include <memory>' "$f"
+done
+
+# ── 5. Cross-compile ofxPiMapper for aarch64 ────────────────────────────────
+echo ""
+echo "=== Compiling ofxPiMapper (aarch64 target) ==="
+cd "$ADDON_DIR/example_basic"
+
+CROSS_CC="aarch64-linux-gnu-gcc"
+CROSS_CXX="aarch64-linux-gnu-g++"
+CROSS_AR="aarch64-linux-gnu-ar"
+CROSS_LD="aarch64-linux-gnu-ld"
+
+if ! command -v "$CROSS_CXX" > /dev/null 2>&1; then
+  echo "ERROR: Cross-compiler $CROSS_CXX not found. Install gcc-aarch64-linux-gnu."
+  exit 1
+fi
+
+GLOBAL_FLAGS="-Wno-error -Wno-reorder -Wno-sign-compare -Wno-delete-non-virtual-dtor -std=c++11 -O0 -fno-tree-vrp"
+
+make clean 2>/dev/null || true
+env \
+  CC="$CROSS_CC" CXX="$CROSS_CXX" AR="$CROSS_AR" LD="$CROSS_LD" \
+  make -j1 \
+    PLATFORM_CFLAGS="$GLOBAL_FLAGS -I$ADDON_DIR/src" \
+    USER_CFLAGS="$GLOBAL_FLAGS" \
+    USER_CPPFLAGS="-std=c++11" \
+    OF_PROJECT_OPTIMIZATION_FLAGS="-O0"
+
+# ── 6. Copy artifact to repo/bin/ ──────────────────────────────────────────
+echo ""
+echo "=== Collecting artifacts ==="
+mkdir -p "$BIN_OUT"
+cp bin/example_basic "$BIN_OUT/ofxPiMapper"
+chmod +x "$BIN_OUT/ofxPiMapper"
+
+echo ""
+echo "============================================"
+echo " BUILD COMPLETE"
+echo "============================================"
+echo " Frontend:      $REPO_DIR/frontend/dist/"
+echo " ofxPiMapper:   $BIN_OUT/ofxPiMapper  (aarch64)"
+echo ""
+echo " Commit and push these artifacts, then run"
+echo " setup.sh on the Pi to deploy."
+echo "============================================"
diff --git a/scripts/setup.sh b/scripts/setup.sh
index c67474b..a7e6a7c 100644
--- a/scripts/setup.sh
+++ b/scripts/setup.sh
@@ -1,170 +1,114 @@
 #!/bin/bash
 
-# MPVJ Headless Setup Script (Final Polish & Robustness)
-# Usage: curl -sSL <URL>/setup.sh | sudo bash -s -- <REPO_URL>
+# MPVJ Deployment Script
+# Runs on the Raspberry Pi. Expects pre-built artifacts in the repo:
+#   frontend/dist/    — built by scripts/build.sh
+#   bin/ofxPiMapper   — aarch64 binary built by scripts/build.sh
+#
+# Usage: sudo bash setup.sh <REPO_URL>
 
 set -e
 
 REPO_URL=$1
 
 if [ -z "$REPO_URL" ]; then
-    echo "Usage: $0 <REPO_URL>"
-    exit 1
+  echo "Usage: sudo bash $0 <REPO_URL>"
+  exit 1
 fi
 
-# 0. BASH & ROOT CHECK
 if [ -z "$BASH_VERSION" ]; then
-  echo "ERROR: This script must be run with BASH, not SH."
-  echo "Please use: sudo bash setup.sh $REPO_URL"
+  echo "ERROR: This script must be run with bash."
   exit 1
 fi
 
 if [ "$(id -u)" -ne 0 ]; then
-  echo "ERROR: This script must be run as root (use sudo)."
+  echo "ERROR: Must be run as root (sudo)."
   exit 1
 fi
 
-# Ensure interactive prompt tooling is available
-if ! command -v whiptail > /dev/null 2>&1; then
-  echo "Installing whiptail for interactive prompts..."
-  if command -v apt-get > /dev/null 2>&1; then
-    apt-get update -y
-    DEBIAN_FRONTEND=noninteractive apt-get install -y whiptail
-  elif command -v pacman > /dev/null 2>&1; then
-    pacman -S --noconfirm whiptail
-  fi
-fi
-
-# Detect user (supports non-login environments like Docker)
+# Detect real user
 REAL_USER=${SUDO_USER:-$(logname 2>/dev/null || true)}
-if [ -z "$REAL_USER" ]; then
-  REAL_USER=root
-fi
-REAL_HOME=$(eval echo "~$REAL_USER" 2>/dev/null || true)
-if [ -z "$REAL_HOME" ]; then
-  REAL_HOME=/root
-fi
-
+[ -z "$REAL_USER" ] && REAL_USER=root
+REAL_HOME=$(eval echo "~$REAL_USER" 2>/dev/null || echo "/root")
 echo "Target User: $REAL_USER ($REAL_HOME)"
 
-# 0.5 SCRUB & SANITIZE PHASE
-echo "Scrubbing system for a clean installation..."
+# Ensure whiptail is available
+if ! command -v whiptail > /dev/null 2>&1; then
+  apt-get update -y
+  DEBIAN_FRONTEND=noninteractive apt-get install -y whiptail
+fi
+
+# ── 0. SCRUB ─────────────────────────────────────────────────────────────────
+echo "Stopping any running services..."
 systemctl stop mpvj-backend.service 2>/dev/null || true
 pkill -9 ofxPiMapper 2>/dev/null || true
 pkill -9 node 2>/dev/null || true
-
-# Remove old setup artifacts
-swapoff /swapfile_mpvj 2>/dev/null || true
-rm -f /swapfile_mpvj 2>/dev/null || true
-
-# Clear any stale apt locks
 rm -f /var/lib/dpkg/lock-frontend /var/lib/apt/lists/lock /var/cache/apt/archives/lock 2>/dev/null || true
 
-# Ask to wipe previous data for a fresh start
-if [ -d "$REAL_HOME/mpvj" ] || [ -d "$REAL_HOME/openFrameworks" ]; then
-  if whiptail --title "Cleanup" --yesno "Found existing MPVJ or OpenFrameworks data. Wipe them for a clean install?" 10 60 < /dev/tty; then
-    echo "Wiping old directories..."
-    rm -rf "$REAL_HOME/mpvj" "$REAL_HOME/openFrameworks"
+if [ -d "$REAL_HOME/mpvj" ]; then
+  if whiptail --title "Cleanup" --yesno "Found existing MPVJ install. Wipe it for a clean install?" 10 60 < /dev/tty; then
+    rm -rf "$REAL_HOME/mpvj"
   fi
 fi
 
-# 1. INTERROGATION PHASE
-echo "Interrogating user for configuration..."
-
-# 1.1 Hostname
-HOSTNAME=$(whiptail --inputbox "Enter Hostname (e.g. mpvj)" 8 45 "mpvj" --title "Hostname Configuration" 3>&1 1>&2 2>&3 < /dev/tty) || exit 1
+# ── 1. CONFIGURATION ─────────────────────────────────────────────────────────
+HOSTNAME=$(whiptail --inputbox "Enter Hostname" 8 45 "mpvj" --title "Hostname" 3>&1 1>&2 2>&3 < /dev/tty) || exit 1
 HOSTNAME=${HOSTNAME:-mpvj}
 
-# 1.2 SSID
-WIFI_SSID=$(whiptail --inputbox "Enter WiFi SSID (e.g. MPVJ-AP)" 8 45 "MPVJ-AP" --title "WiFi SSID Configuration" 3>&1 1>&2 2>&3 < /dev/tty) || exit 1
+WIFI_SSID=$(whiptail --inputbox "Enter WiFi SSID" 8 45 "MPVJ-AP" --title "WiFi SSID" 3>&1 1>&2 2>&3 < /dev/tty) || exit 1
 WIFI_SSID=${WIFI_SSID:-MPVJ-AP}
 
-# 1.3 Country Code & Password
 while true; do
-  WIFI_COUNTRY=$(whiptail --inputbox "Enter 2-letter Country Code (e.g. US, GB)" 8 45 "US" --title "WiFi Country Configuration" 3>&1 1>&2 2>&3 < /dev/tty) || exit 1
+  WIFI_COUNTRY=$(whiptail --inputbox "Enter 2-letter Country Code (e.g. US, GB)" 8 45 "US" --title "WiFi Country" 3>&1 1>&2 2>&3 < /dev/tty) || exit 1
   WIFI_COUNTRY=$(echo "$WIFI_COUNTRY" | tr '[:lower:]' '[:upper:]')
-  if ! echo "$WIFI_COUNTRY" | grep -qE "^[A-Z]{2}$"; then
-    whiptail --msgbox "Error: Country Code must be 2 letters." 8 45 < /dev/tty
-  else
-    break
-  fi
+  echo "$WIFI_COUNTRY" | grep -qE "^[A-Z]{2}$" && break
+  whiptail --msgbox "Country Code must be exactly 2 letters." 8 45 < /dev/tty
 done
 
 while true; do
-  WIFI_PASS=$(whiptail --passwordbox "Enter WiFi Password (min 8 chars)" 8 45 --title "WiFi Password Configuration" 3>&1 1>&2 2>&3 < /dev/tty) || exit 1
-  if [ ${#WIFI_PASS} -lt 8 ]; then
-    whiptail --msgbox "Error: Minimum 8 characters required." 8 45 < /dev/tty
-  else
-    break
-  fi
+  WIFI_PASS=$(whiptail --passwordbox "Enter WiFi Password (min 8 chars)" 8 45 --title "WiFi Password" 3>&1 1>&2 2>&3 < /dev/tty) || exit 1
+  [ ${#WIFI_PASS} -ge 8 ] && break
+  whiptail --msgbox "Minimum 8 characters required." 8 45 < /dev/tty
 done
 
-# 2. SYSTEM STAGING PHASE
-echo "System Staging Phase..."
-
-# 2.1 Pre-Flight Disk Check
+# ── 2. SYSTEM SETUP ──────────────────────────────────────────────────────────
 FREE_SPACE_KB=$(df / --output=avail | tail -n1)
-if [ "$FREE_SPACE_KB" -lt 4194304 ]; then
-  whiptail --msgbox "Error: 4GB free space required." 8 45 < /dev/tty
+if [ "$FREE_SPACE_KB" -lt 2097152 ]; then
+  whiptail --msgbox "Error: At least 2GB free space required." 8 45 < /dev/tty
   exit 1
 fi
 
-# 2.2 System Updates
-if command -v apt-get > /dev/null; then
-  apt-get update -y && DEBIAN_FRONTEND=noninteractive apt-get upgrade -y
-elif command -v pacman > /dev/null; then
-  pacman -Syu --noconfirm
+echo "Installing runtime dependencies..."
+apt-get update -y
+DEBIAN_FRONTEND=noninteractive apt-get install -y \
+  git hostapd dnsmasq avahi-daemon curl ffmpeg \
+  libzmq3-dev libavahi-compat-libdnssd-dev
+
+if ! command -v node > /dev/null 2>&1; then
+  curl -fsSL https://deb.nodesource.com/setup_20.x | bash -
+  apt-get install -y nodejs
 fi
 
-# 2.3 Install Dependencies
-echo "Installing Core Dependencies..."
-if command -v apt-get > /dev/null; then
-  DEBIAN_FRONTEND=noninteractive apt-get install -y git hostapd dnsmasq avahi-daemon curl ffmpeg build-essential libzmq3-dev libavahi-compat-libdnssd-dev wget unzip
-elif command -v pacman > /dev/null; then
-  pacman -S --noconfirm git hostapd dnsmasq avahi curl ffmpeg base-devel zeromq wget unzip
-fi
-
-# Install Node.js if missing
-if ! command -v node > /dev/null; then
-  curl -fsSL https://deb.nodesource.com/setup_20.x | bash - || true
-  command -v apt-get > /dev/null && apt-get install -y nodejs
-fi
-
-# 2.4 Hostname & WiFi Country
-# hostnamectl requires systemd/D-Bus — use direct file writes as a universal fallback
-if command -v hostnamectl > /dev/null 2>&1 && systemctl is-system-running --quiet 2>/dev/null; then
-  hostnamectl set-hostname "$HOSTNAME"
-else
-  echo "$HOSTNAME" > /etc/hostname
-  hostname "$HOSTNAME" 2>/dev/null || true
-fi
+# Hostname
+hostnamectl set-hostname "$HOSTNAME"
 sed -i "s/127.0.1.1.*/127.0.1.1\t$HOSTNAME/g" /etc/hosts || true
 
-# 2.5 OS-Agnostic Swap Increase (2GB)
-echo "Ensuring 2GB Swap for build..."
-if [ ! -f /swapfile_mpvj ]; then
-  fallocate -l 2G /swapfile_mpvj || dd if=/dev/zero of=/swapfile_mpvj bs=1M count=2048
-  chmod 600 /swapfile_mpvj
-  mkswap /swapfile_mpvj
-  swapon /swapfile_mpvj
-fi
-
-# 3. NETWORKING
-echo "Configuring Networking..."
-# hostapd
+# ── 3. NETWORKING ────────────────────────────────────────────────────────────
+echo "Configuring networking..."
 cat <<EOF > /etc/hostapd/hostapd.conf
 interface=wlan0
 driver=nl80211
 ssid=$WIFI_SSID
 hw_mode=g
 channel=7
+country_code=$WIFI_COUNTRY
 wpa=2
 wpa_passphrase=$WIFI_PASS
 wpa_key_mgmt=WPA-PSK
 EOF
-[ -f /etc/default/hostapd ] && sed -i 's/#DAEMON_CONF=""/DAEMON_CONF="\/etc\/hostapd\/hostapd.conf"/g' /etc/default/hostapd
+[ -f /etc/default/hostapd ] && \
+  sed -i 's|#DAEMON_CONF=""|DAEMON_CONF="/etc/hostapd/hostapd.conf"|g' /etc/default/hostapd
 
-# dnsmasq
 [ -f /etc/dnsmasq.conf ] && mv /etc/dnsmasq.conf /etc/dnsmasq.conf.bak || true
 cat <<EOF > /etc/dnsmasq.conf
 interface=wlan0
@@ -172,41 +116,40 @@ dhcp-range=192.168.4.2,192.168.4.20,255.255.255.0,24h
 address=/$HOSTNAME.local/192.168.4.1
 EOF
 
-# dhcpcd / network manager
-if [ -f /etc/dhcpcd.conf ]; then
-  if ! grep -q "interface wlan0" /etc/dhcpcd.conf; then
-    echo -e "\ninterface wlan0\n    static ip_address=192.168.4.1/24\n    nohook wpa_supplicant" >> /etc/dhcpcd.conf
-  fi
+if [ -f /etc/dhcpcd.conf ] && ! grep -q "interface wlan0" /etc/dhcpcd.conf; then
+  printf '\ninterface wlan0\n    static ip_address=192.168.4.1/24\n    nohook wpa_supplicant\n' >> /etc/dhcpcd.conf
 fi
 
-# 4. DEPLOYMENT
-echo "Deploying Application..."
+# ── 4. DEPLOY APP ────────────────────────────────────────────────────────────
+echo "Deploying application from $REPO_URL ..."
 [ -d "$REAL_HOME/mpvj" ] && mv "$REAL_HOME/mpvj" "$REAL_HOME/mpvj.old.$(date +%s)"
 sudo -u "$REAL_USER" git clone "$REPO_URL" "$REAL_HOME/mpvj"
+
+# Verify pre-built artifacts exist
+if [ ! -d "$REAL_HOME/mpvj/frontend/dist" ]; then
+  echo "ERROR: frontend/dist/ not found in repo."
+  echo "Run scripts/build.sh on your x86_64 machine first and commit the dist folder."
+  exit 1
+fi
+if [ ! -f "$REAL_HOME/mpvj/bin/ofxPiMapper" ]; then
+  echo "ERROR: bin/ofxPiMapper not found in repo."
+  echo "Run scripts/build.sh on your x86_64 machine first and commit the binary."
+  exit 1
+fi
+
+# Install npm deps for backend only (no build needed)
+cd "$REAL_HOME/mpvj/backend"
+sudo -u "$REAL_USER" npm install --omit=optional --package-lock=false
+
+# Install ofxPiMapper binary
+install -m 755 "$REAL_HOME/mpvj/bin/ofxPiMapper" /usr/local/bin/ofxPiMapper
+
+# Media directory
 mkdir -p "$REAL_HOME/media"
 chown -R "$REAL_USER:$REAL_USER" "$REAL_HOME/mpvj" "$REAL_HOME/media"
 
-# 4.2 Build
-export NODE_OPTIONS="--max-old-space-size=512"
-cd "$REAL_HOME/mpvj/backend"
-echo "Installing backend dependencies..."
-rm -rf node_modules package-lock.json
-sudo -u "$REAL_USER" npm install --omit=optional --package-lock=false
-
-cd "$REAL_HOME/mpvj/frontend"
-if [ ! -d "dist" ]; then
-  echo "Installing frontend dependencies and building..."
-  rm -rf node_modules package-lock.json
-  sudo -u "$REAL_USER" npm install --omit=optional --package-lock=false
-  sudo -u "$REAL_USER" npm run build
-else
-  echo "Pre-built frontend detected. Skipping frontend build."
-fi
-
-# 4.3 Setup system service (only if systemd is active)
-# Note: in non-systemd contexts (containers, chroots), systemctl will fail.
-if command -v systemctl > /dev/null 2>&1 && systemctl is-system-running --quiet 2>/dev/null; then
-  cat <<EOF > /etc/systemd/system/mpvj-backend.service
+# ── 5. SYSTEMD SERVICE ───────────────────────────────────────────────────────
+cat <<EOF > /etc/systemd/system/mpvj-backend.service
 [Unit]
 Description=MPVJ Backend
 After=network.target
@@ -219,14 +162,10 @@ Restart=on-failure
 [Install]
 WantedBy=multi-user.target
 EOF
-  systemctl daemon-reload
-  systemctl enable mpvj-backend.service
-else
-  echo "WARNING: systemd is not active/accessible. Skipping systemd service setup."
-  echo "You can run the backend manually: node $REAL_HOME/mpvj/backend/index.js"
-fi
+systemctl daemon-reload
+systemctl enable mpvj-backend.service
 
-# 4.4 .env
+# Write .env
 cat <<EOF > "$REAL_HOME/mpvj/backend/.env"
 PORT=80
 MPVJ_HOSTNAME=$HOSTNAME
@@ -234,139 +173,6 @@ MPVJ_SSID=$WIFI_SSID
 MPVJ_MEDIA_DIR=$REAL_HOME/media
 EOF
 
-# 4.5 THE PRE-BUILT ENGINE SOLUTION
-echo "Installing Pre-compiled OpenFrameworks (FAST)..."
-cd "$REAL_HOME"
-if [ ! -d "openFrameworks" ]; then
-  echo "Downloading OpenFrameworks v0.12.1..."
-  ARCH=$(uname -m)
-  OF_FILE="of_v0.12.1_linuxaarch64_release.tar.gz"
-  [ "$ARCH" != "aarch64" ] && [ "$ARCH" != "x86_64" ] && OF_FILE="of_v0.12.1_linuxarmv6l_release.tar.gz"
-  DOWNLOAD_URL="https://github.com/openframeworks/openFrameworks/releases/download/0.12.1/$OF_FILE"
-  if ! sudo -u "$REAL_USER" wget "$DOWNLOAD_URL"; then
-    sudo -u "$REAL_USER" curl -L -O "$DOWNLOAD_URL"
-  fi
-  sudo -u "$REAL_USER" tar -xzf "$OF_FILE"
-  sudo -u "$REAL_USER" mv of_v0.12.1_linux*_release openFrameworks
-  sudo -u "$REAL_USER" rm "$OF_FILE"
-fi
-
-# ALWAYS verify dependencies, even if OF is already present
-echo "Ensuring modern dependencies for Debian Trixie..."
-if command -v apt-get > /dev/null; then
-  DEBIAN_FRONTEND=noninteractive apt-get install -y \
-    libmpg123-dev libsndfile1-dev libopenal-dev libassimp-dev \
-    libglew-dev libglfw3-dev liburiparser-dev \
-    libcurl4-openssl-dev libpugixml-dev libasound2-dev \
-    libgstreamer1.0-dev libgstreamer-plugins-base1.0-dev \
-    gstreamer1.0-plugins-good gstreamer1.0-plugins-bad \
-    gstreamer1.0-plugins-ugly gstreamer1.0-libav \
-    libgtk-3-dev libboost-filesystem-dev \
-    libfontconfig1-dev libfreetype-dev libx11-dev \
-    libxrandr-dev libxinerama-dev libxcursor-dev libxi-dev \
-    libpulse-dev libudev-dev libfreeimage-dev librtaudio-dev \
-    freeglut3-dev libxxf86vm-dev
-fi
-
-echo "Downloading and building ofxPiMapper Addon..."
-cd "$REAL_HOME/openFrameworks/addons"
-# FORCE CLEAN CLONE to fix corrupted source files from previous failed runs
-rm -rf ofxPiMapper
-sudo -u "$REAL_USER" git clone --depth 1 https://github.com/kr15h/ofxPiMapper.git
-
-# Apply patches to the addon before building
-cd "$REAL_HOME/openFrameworks/addons/ofxPiMapper"
-echo "Applying clean Global Compatibility Patches..."
-
-# 1. Locate OscControl.cpp and apply highlight patch
-# Use 'find' to handle different subfolder structures
-OSC_FILE=$(find src -name "OscControl.cpp" | head -n 1)
-if [ -n "$OSC_FILE" ]; then
-  echo "Patching $OSC_FILE..."
-  cat <<'EOF_PATCH' > /tmp/highlight.patch
-    if (m.getAddress() == "/ofxPiMapper/surface/highlight"){
-        int surfaceIndex = m.getArgAsInt32(0);
-        mapper->getSurfaceManager()->selectSurface(surfaceIndex);
-        return;
-    }
-EOF_PATCH
-  sed -i '/if (m.getAddress() == "\/ofxPiMapper\/surface\/select"){/r /tmp/highlight.patch' "$OSC_FILE"
-  rm -f /tmp/highlight.patch
-fi
-
-# 2. Create a single compatibility header for C++11
-cat <<'EOF_COMPAT' > src/cpp11_compat.h
-#ifndef OFXPIMAPPER_CPP11_COMPAT_H
-#define OFXPIMAPPER_CPP11_COMPAT_H
-#include <memory>
-#include <utility>
-#include <vector>
-#include <string>
-#include <algorithm>
-
-#if __cplusplus < 201402L
-namespace std {
-    template<typename T, typename... Args>
-    std::unique_ptr<T> make_unique(Args&&... args) {
-        return std::unique_ptr<T>(new T(std::forward<Args>(args)...));
-    }
-}
-#endif
-
-// Explicitly bridge common namespaces to bypass C++20 strictness
-using std::unique_ptr;
-using std::make_unique;
-using std::vector;
-using std::string;
-#endif
-EOF_COMPAT
-
-# 3. Include the compat header in the main addon header
-sed -i '1i #include "cpp11_compat.h"' src/ofxPiMapper.h
-
-# 4. Fix unique_ptr and make_unique globally (Using relative paths and avoiding std::std::)
-find src -type f \( -name "*.h" -o -name "*.cpp" \) -exec sed -i 's/\([^:a-zA-Z0-9]\)unique_ptr\b/\1std::unique_ptr/g' {} +
-find src -type f \( -name "*.h" -o -name "*.cpp" \) -exec sed -i 's/\([^:a-zA-Z0-9]\)make_unique\b/\1std::make_unique/g' {} +
-
-# 5. Add memory header only where needed
-for f in $(grep -l "unique_ptr" src/*.h 2>/dev/null || true); do
-  grep -q "<memory>" "$f" || sed -i '1i #include <memory>' "$f"
-done
-
-# Build Example
-cd "$REAL_HOME/openFrameworks/addons/ofxPiMapper/example_basic"
-echo "Cleaning old objects..."
-sudo -u "$REAL_USER" make clean
-
-echo "Starting compilation (Nuclear Stability Mode: -O0 + C++11 + VRP disabled)..."
-GLOBAL_FLAGS="-Wno-error -Wno-reorder -Wno-sign-compare -Wno-delete-non-virtual-dtor -std=c++11 -O0 -fno-tree-vrp"
-
-# Cross-compile support: if host is not aarch64 and cross toolchain is present, use it
-MAKE_ENV=""
-if [ "$(uname -m)" != "aarch64" ] && command -v aarch64-linux-gnu-g++ > /dev/null 2>&1; then
-  echo "Detected x86_64 host with aarch64 toolchain; building aarch64 binaries."
-  MAKE_ENV="CC=aarch64-linux-gnu-gcc CXX=aarch64-linux-gnu-g++ AR=aarch64-linux-gnu-ar LD=aarch64-linux-gnu-ld"
-fi
-
-sudo -u "$REAL_USER" env $MAKE_ENV make -j1 \
-    PLATFORM_CFLAGS="$GLOBAL_FLAGS -I$REAL_HOME/openFrameworks/addons/ofxPiMapper/src" \
-    USER_CFLAGS="$GLOBAL_FLAGS" \
-    USER_CPPFLAGS="-std=c++11" \
-    OF_PROJECT_OPTIMIZATION_FLAGS="-O0"
-
-cp bin/example_basic /usr/local/bin/ofxPiMapper
-chmod +x /usr/local/bin/ofxPiMapper
-
-# 5. FINALIZATION
-echo "Cleaning up..."
-swapoff /swapfile_mpvj 2>/dev/null || true
-rm /swapfile_mpvj 2>/dev/null || true
-
-if [ "$(cat /proc/1/comm 2>/dev/null)" = "systemd" ]; then
-  whiptail --title "Success" --msgbox "INSTALL COMPLETE!\n\nRebooting into AP Mode.\nSSID: $WIFI_SSID\nIP: 192.168.4.1" 12 45 < /dev/tty
-  reboot
-else
-  echo "INSTALL COMPLETE. Running inside a non-systemd environment (e.g., container)."
-  echo "Start the backend with: node $REAL_HOME/mpvj/backend/index.js"
-  echo "(No reboot performed.)"
-fi
+# ── 6. DONE ───────────────────────────────────────────────────────────────────
+whiptail --title "Success" --msgbox "INSTALL COMPLETE!\n\nRebooting into AP Mode.\nSSID: $WIFI_SSID\nIP: 192.168.4.1" 12 45 < /dev/tty
+reboot