diff --git a/xo_install.sh b/xo_install.sh
index e5f6bbd..c8264fb 100644
--- a/xo_install.sh
+++ b/xo_install.sh
@@ -1,15 +1,104 @@
 #!/bin/bash
+set -euo pipefail
+IFS=$'\n\t'
 
-# Check if we were effectively run as root
-[ $EUID = 0 ] || { echo "This script needs to be run as root!"; exit 1; }
-
-# Check for required memory
+# --- Check if we were effectively run as root ---
+[ "${EUID:-$(id -u)}" = 0 ] || { echo "This script needs to be run as root!"; exit 1; }
 totalk=$(awk '/^MemTotal:/{print $2}' /proc/meminfo)
-if [ "$totalk" -lt "2000000" ]; then echo "XOCE Requires at least 2GB Memory!"; exit 1; fi 
+if [ "$totalk" -lt "2000000" ]; then echo "XOCE Requires at least 2GB Memory!"; exit 1; fi
+export DEBIAN_FRONTEND=noninteractive
 
-distro=$(/usr/bin/lsb_release -is)
-if [ "$distro" = "Ubuntu" ]; then /usr/bin/add-apt-repository multiverse; fi
+# --- OS detection ---
+if [ -f /etc/os-release ]; then
+  . /etc/os-release
+  distro="$ID"
+  version="$VERSION_ID"
+else
+  echo "Unable to detect OS via /etc/os-release"; exit 1
+fi
 
+# Deb Point Release Check
+if [ "$distro" = "debian" ] && [ -r /etc/debian_version ]; then
+  deb_point=$(sed -E 's/^([0-9]+(\.[0-9]+)?).*/\1/' /etc/debian_version)
+  version="${deb_point:-$version}"
+fi
+
+echo "Detected: $distro $version"
+
+# --- Version compare helper ---
+version_ge() { dpkg --compare-versions "$1" ge "$2"; }
+
+# --- Minimum supported versions ---
+case "$distro" in
+  debian)
+    version_ge "$version" "12.5" || { echo "Debian $version too old (min 12.5)"; exit 1; }
+    ;;
+  ubuntu)
+    version_ge "$version" "24.04" || { echo "Ubuntu $version too old (min 24.04)"; exit 1; }
+    ;;
+  *)
+    echo "Unsupported distribution: $distro"; exit 1
+    ;;
+esac
+
+# --- Helper: apt install if available ---
+apt_install_if_available() {
+  local pkg="$1"
+  /usr/bin/apt-get update -qq
+  if /usr/bin/apt-cache policy "$pkg" 2>/dev/null | grep -q 'Candidate:'; then
+    echo "Installing $pkg"
+    /usr/bin/apt-get --yes install "$pkg"
+    return 0
+  else
+    return 1
+  fi
+}
+
+# --- FUSE runtime install ---
+install_fuse_runtime() {
+  echo "Ensuring FUSE runtime (libfuse.so.2)..."
+  for p in libfuse2 libfuse2t64; do
+    apt_install_if_available "$p" && break
+  done
+  /sbin/ldconfig -v 2>/dev/null || true
+  if ! /sbin/ldconfig -p | grep -Fq 'libfuse.so.2'; then
+    echo "ERROR: libfuse.so.2 not found. XO requires FUSE2 runtime."
+    exit 1
+  fi
+  echo "libfuse.so.2 verified."
+}
+
+# --- Install dependencies ---
+install_deps() {
+  echo "Installing general dependencies..."
+  /usr/bin/apt-get update
+  /usr/bin/apt-get --yes install git curl apt-transport-https gnupg ca-certificates
+
+  case "$distro" in
+    debian)
+      echo "Installing Debian-specific dependencies..."
+      install_fuse_runtime
+      /usr/bin/apt-get --yes install libnbd-bin nbdkit nbdkit-plugin-vddk || true
+      ;;
+    ubuntu)
+      echo "Installing Ubuntu-specific dependencies..."
+      /usr/bin/apt-get --yes install software-properties-common
+      /usr/bin/add-apt-repository -y multiverse || true
+      /usr/bin/apt-get update
+      install_fuse_runtime
+      /usr/bin/apt-get --yes install libnbd-bin nbdkit || true
+      ;;
+  esac
+
+  echo "Installing XOCE common dependencies..."
+  /usr/bin/apt-get --yes install \
+    build-essential redis-server libpng-dev python3-minimal \
+    libvhdi-utils nfs-common lvm2 cifs-utils openssl || true
+}
+
+install_deps
+
+# --- Script variables ---
 xo_branch="master"
 xo_server="https://github.com/vatesfr/xen-orchestra"
 n_repo="https://raw.githubusercontent.com/tj/n/master/bin/n"
@@ -20,64 +109,53 @@ xo_server_dir="/opt/xen-orchestra"
 systemd_service_dir="/lib/systemd/system"
 xo_service="xo-server.service"
 
-# Ensures that Yarn dependencies are installed
-/usr/bin/apt-get update
-/usr/bin/apt-get --yes install git curl apt-transport-https gnupg
-
-#Install yarn
+# --- Install Yarn ---
 cd /opt
-
-/usr/bin/curl -sSL $yarn_gpg | gpg --dearmor | tee /usr/share/keyrings/yarnkey.gpg >/dev/null
+/usr/bin/curl -sSL "$yarn_gpg" | gpg --dearmor | tee /usr/share/keyrings/yarnkey.gpg >/dev/null
 echo "$yarn_repo" | tee /etc/apt/sources.list.d/yarn.list
 /usr/bin/apt-get update
 /usr/bin/apt-get install --yes yarn
 
-# Install n
-/usr/bin/curl -o $n_location $n_repo
-/bin/chmod +x $n_location
+# --- Install Node via n ---
+/usr/bin/curl -o "$n_location" "$n_repo"
+/bin/chmod +x "$n_location"
+/usr/local/bin/n lts
 
-# Install node via n
-n lts
+# Ensure new Node is used
+export PATH="/usr/local/bin:$PATH"
+hash -r
 
-# Symlink node directories
-ln -s /usr/bin/node /usr/local/bin/node
+node_version=$(node -v | sed 's/v//')
+dpkg --compare-versions "$node_version" lt "20.18" && {
+  echo "ERROR: Node version $node_version too old. XO requires >=20.18"
+  exit 1
+}
 
-# Install XO dependencies
-/usr/bin/apt-get install --yes build-essential redis-server libpng-dev git python3-minimal libvhdi-utils nfs-common lvm2 cifs-utils openssl libfuse2t64
-
-/usr/bin/git clone -b $xo_branch $xo_server
-
-cd $xo_server_dir
+# --- Clone & build XO ---
+/usr/bin/git clone -b "$xo_branch" "$xo_server" "$xo_server_dir" 2>/dev/null || true
+cd "$xo_server_dir"
 /usr/bin/yarn
 /usr/bin/yarn build
 
 cd packages/xo-server
-cp sample.config.toml .xo-server.toml
+cp -f sample.config.toml .xo-server.toml
 
 dest=/usr/local/lib/node_modules/
-#Create node_modules directory if doesn't exist
-mkdir -p $dest
+mkdir -p "$dest"
 
-# Plugins to ignore
 ignoreplugins=("xo-server-test")
-
-# Symlink all plugins
-for source in $(ls -d /opt/xen-orchestra/packages/xo-server-*); do
-  plugin=$(basename $source)
-  if [[ "${ignoreplugins[@]}" =~ $plugin ]]; then
-      echo "Ignoring $plugin plugin"
-  else
-      ln -s "$source" "$dest"
-    fi
+for source in $(ls -d /opt/xen-orchestra/packages/xo-server-* 2>/dev/null || true); do
+  plugin=$(basename "$source")
+  [[ " ${ignoreplugins[*]} " == *" $plugin "* ]] && continue
+  ln -sfn "$source" "$dest"
 done
 
-if [[ -e $systemd_service_dir/$xo_service ]] ; then
-  rm $systemd_service_dir/$xo_service
+# --- systemd service ---
+if [[ -e "$systemd_service_dir/$xo_service" ]]; then
+  rm -f "$systemd_service_dir/$xo_service"
 fi
 
-/bin/cat << EOF >> $systemd_service_dir/$xo_service
-# Systemd service for XO-Server.
-
+/bin/cat << 'EOF' > "$systemd_service_dir/$xo_service"
 [Unit]
 Description= XO Server
 After=network-online.target
@@ -85,7 +163,6 @@ After=network-online.target
 [Service]
 WorkingDirectory=/opt/xen-orchestra/packages/xo-server/
 ExecStart=/usr/local/bin/node ./dist/cli.mjs
-
 Restart=always
 SyslogIdentifier=xo-server
 
@@ -93,12 +170,13 @@ SyslogIdentifier=xo-server
 WantedBy=multi-user.target
 EOF
 
-
 /bin/systemctl daemon-reload
-/bin/systemctl enable $xo_service
-/bin/systemctl start $xo_service
-
-echo ""
-echo ""
-echo "Installation complete, open a browser to:" && hostname -I && echo "" && echo "Default Login:"admin@admin.net" Password:"admin"" && echo "" && echo "Don't forget to change your password!"
+/bin/systemctl enable "$xo_service"
+/bin/systemctl start "$xo_service" || (sleep 2 && /bin/systemctl start "$xo_service")
 
+echo
+echo "Installation complete, open a browser to:" && hostname -I
+echo
+echo 'Default Login: "admin@admin.net"  Password: "admin"'
+echo
+echo "Don't forget to change your password!"