ubuntu kiosk with phidgethub using touch screen
# --- Switch DM to SDDM and configure autologin ---
[ -f /etc/sddm.conf ] || sudo touch /etc/sddm.conf
if grep -q '^\[Autologin\]' /etc/sddm.conf; then
sudo sed -i '/^\[Autologin\]/,/^\[/{s/^User.*/User=kiosk/;s/^Session.*/Session=plasmawayland/}' /etc/sddm.conf
else
sudo tee -a /etc/sddm.conf >/dev/null <<'EOF'
[Autologin]
User=kiosk
Session=plasmawayland
EOF
fi
sudo systemctl disable gdm3 || true
sudo systemctl enable sddm
sudo systemctl set-default graphical.target
systemctl status sddm
sudo reboot
#!/bin/bash
set -eu
# Enable pipefail if supported
if set -o | grep -q pipefail; then
set -o pipefail
fi
# Function definitions for each section
section_1() {
read -p "Press [Enter] key to continue... stopping screen blanking (best effort for GNOME; harmless on Plasma)"
##############################################
# SECTION 1: POWER MANAGEMENT AND SCREEN BLANKING for current user
##############################################
echo "=== SECTION 1: POWER MANAGEMENT AND SCREEN BLANKING ==="
# Stop screen blanking/suspend for kiosk session (no-op if schema absent)
current_user=$(logname 2>/dev/null || echo "$SUDO_USER" || echo "$USER")
sudo -u "$current_user" dbus-run-session gsettings set org.gnome.desktop.session idle-delay 0 || true
sudo -u "$current_user" dbus-run-session gsettings set org.gnome.settings-daemon.plugins.power sleep-inactive-ac-type 'nothing' || true
sudo -u "$current_user" dbus-run-session gsettings set org.gnome.settings-daemon.plugins.power sleep-inactive-battery-type 'nothing' || true
}
section_2() {
##############################################
# SECTION 2: INITIAL SYSTEM SETUP
##############################################
echo "=== SECTION 2: INITIAL SYSTEM SETUP ==="
apt-get update -yq
apt-get upgrade -yq
apt-get update -yq
#wait for user input
read -p "Press [Enter] key to continue... try gdm3, ssdm has issues with my app"
}
section_3() {
#######################################################
# SECTION 3: DESKTOP ENVIRONMENT INSTALLATION
#######################################################
echo "=== SECTION 3: DESKTOP ENVIRONMENT INSTALLATION ==="
apt install -yq kde-plasma-desktop chromium-browser xdotool unclutter sed curl libinput-tools net-tools ssh
systemctl enable ssh
#wait for user input
read -p "Press [Enter] key to continue... plasma installed. installing other stuff for phidget and enabling ssh "
}
section_4() {
##############################################
# SECTION 4: PHIDGET SETUP AND DEPENDENCIES
##############################################
echo "=== SECTION 4: PHIDGET SETUP AND DEPENDENCIES ==="
apt install -y chromium-browser sed xdotool unclutter
curl -fsSL https://www.phidgets.com/downloads/setup_linux | bash -
apt install -y libphidget22 phidget22networkserver
apt install -y libphidget22* phidget22*
apt install -y python3 npm nodejs
ifconfig
}
section_5() {
##############################################
# SECTION 5: TOUCHSCREEN CONFIGURATION
##############################################
echo "=== SECTION 5: TOUCHSCREEN CONFIGURATION ==="
#setup touchscreen
echo -e "usbtouchscreen\nusbhid" | tee /etc/modules-load.d/touchscreen.conf
modprobe usbtouchscreen
modprobe usbhid
lsmod | grep usb
lsmod | grep hid
lsmod | grep usb
lsmod | grep hid
dmesg | grep -i touch
}
section_6() {
##############################################
# SECTION 6: PHIDGET NETWORK SERVER SETUP
##############################################
echo "=== SECTION 6: PHIDGET NETWORK SERVER SETUP ==="
#setup phidget22networkserver
DEFAULT_PHIDGET_PORT_VAR=""
DEFAULT_WEB_PORT_VAR=""
SERVICE_NAME="phidget22networkserver"
INIT_PATH="/etc/init.d/$SERVICE_NAME"
#v1 (works???)
if [[ "$(id -u)" -ne 0 ]]; then
echo "Run this as root."
exit 1
fi
cat > "$INIT_PATH" <<'EOF'
#!/bin/sh
### BEGIN INIT INFO
# Provides: phidget22networkserver
# Required-Start: $network $remote_fs
# Required-Stop: $network $remote_fs
# Should-Start: avahi avahi-daemon
# Should-Stop: avahi avahi-daemon
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Phidget Network Server
# Description: Phidget network server for accessing Phidgets over the network.
### END INIT INFO
sudo phidget22networkserver -c /etc/phidgets/phidget22networkserver.pc -D
EOF
#add ipv6 to phidget config??? { port: 8080 }
chmod +x "$INIT_PATH"
sudo sed -i "s#docroot: '/var/phidgets/www'#docroot: '/home/recharjme/Desktop/APP'#" /etc/phidgets/phidget22networkserver.pc
update-rc.d "$SERVICE_NAME" defaults
service "$SERVICE_NAME" start
systemctl daemon-reload
systemctl enable "$SERVICE_NAME"
systemctl restart "$SERVICE_NAME"
systemctl status "$SERVICE_NAME"
#wait for user input
read -p "Press [Enter] key to continue... this is usuially where shit breaks"
}
section_7() {
##############################################
# SECTION 7: KIOSK USER SETUP
##############################################
echo "=== SECTION 7: KIOSK USER SETUP ==="
# 1) Ensure kiosk exists
if ! id kiosk &>/dev/null; then adduser --disabled-password --gecos "" kiosk; fi
passwd -d kiosk || true
usermod -aG sudo kiosk
install -d -m 0755 /home/kiosk/.config/autostart
chown -R kiosk:kiosk /home/kiosk
read -p "Press [Enter] key to continue... touch works now, configuring GDM for Plasma Wayland"
# Force Wayland in GDM for admin acct
sed -i 's/^#\?WaylandEnable=.*/WaylandEnable=true/' /etc/gdm3/custom.conf
grep WaylandEnable /etc/gdm3/custom.conf || true
read -p "Press [Enter] key to continue... setting autologin for GDM3 (Plasma Wayland)"
sudo -u kiosk kwriteconfig6 --file startkderc --group General --key desktopSession empty
sudo -u kiosk kwriteconfig6 --file ksmserverrc --group General --key loginMode emptySession
}
section_8() {
##############################################
# SECTION 8: GDM3 AUTOLOGIN CONFIGURATION
##############################################
echo "=== SECTION 8: GDM3 AUTOLOGIN CONFIGURATION ==="
# GDM3 Autologin to Plasma Wayland
if [ -f /etc/gdm3/custom.conf ]; then
awk '
BEGIN{inDaemon=0; hasALE=0; hasAL=0; hasDS=0}
/^\[daemon\]/{inDaemon=1; print; next}
/^\[/{ if(inDaemon && !(hasALE&&hasAL&&hasDS)){print "AutomaticLoginEnable=true\nAutomaticLogin=kiosk\nDefaultSession=plasma"}; inDaemon=0; print; next}
{
if(inDaemon){
if($0 ~ /^AutomaticLoginEnable=/){$0="AutomaticLoginEnable=true"; hasALE=1}
if($0 ~ /^AutomaticLogin=/){$0="AutomaticLogin=kiosk"; hasAL=1}
if($0 ~ /^DefaultSession=/){$0="DefaultSession=plasma"; hasDS=1}
}
print
}
END{
if(inDaemon && !(hasALE&&hasAL&&hasDS)){
print "AutomaticLoginEnable=true"
print "AutomaticLogin=kiosk"
print "DefaultSession=plasma"
}
}
' /etc/gdm3/custom.conf > /tmp/custom.conf && mv /tmp/custom.conf /etc/gdm3/custom.conf
# Make sure AccountsService maps kiosk -> plasma
install -d -m 0755 /var/lib/AccountsService/users
cat >/var/lib/AccountsService/users/kiosk <<'EOF'
[User]
XSession=plasma
SystemAccount=false
EOF
chmod 0644 /var/lib/AccountsService/users/kiosk
#systemctl restart gdm3
fi
}
section_9() {
##############################################
# SECTION 9: SDDM CONFIGURATION (ALTERNATIVE)
##############################################
echo "=== SECTION 9: SDDM CONFIGURATION (ALTERNATIVE) ==="
# Make sure /etc/sddm.conf exists
[ -f /etc/sddm.conf ] || touch /etc/sddm.conf
# Ensure autologin block exists and points to kiosk + plasma
if grep -q '^\[Autologin\]' /etc/sddm.conf; then
sed -i '/^\[Autologin\]/,/^\[/{s/^User.*/User=kiosk/;s/^Session.*/Session=plasma/}' /etc/sddm.conf
else
tee -a /etc/sddm.conf >/dev/null <<'EOF'
[Autologin]
User=kiosk
Session=plasma
EOF
fi
# Switch DM to SDDM
echo "sddm shared/default-x-display-manager select sddm" | sudo debconf-set-selections
sudo dpkg-reconfigure -fnoninteractive sddm
systemctl disable gdm3 || true
systemctl enable sddm
systemctl set-default graphical.target
systemctl restart sddm
# Show resulting configs
[ -f /etc/gdm3/custom.conf ] && cat /etc/gdm3/custom.conf || true
[ -f /etc/sddm.conf ] && cat /etc/sddm.conf || true
read -p "Press [Enter] key to continue... creating Chromium autostart"
}
section_10() {
##############################################
# SECTION 10: CHROMIUM KIOSK AUTOSTART SETUP
##############################################
echo "=== SECTION 10: CHROMIUM KIOSK AUTOSTART SETUP ==="
# Create Chromium kiosk autostart for Plasma session
APP_URL="http://localhost:8080"
cat >/home/kiosk/.config/autostart/chromium-kiosk.desktop <<EOF
[Desktop Entry]
Type=Application
Name=Chromium Kiosk
Exec=/usr/bin/chromium-browser --ozone-platform=wayland --enable-features=UseOzonePlatform,WaylandWindowDecorations --no-first-run --no-default-browser-check --disable-session-crashed-bubble --disable-infobars --start-maximized --noerrdialogs --incognito --kiosk "$APP_URL"
X-GNOME-Autostart-enabled=true
X-KDE-AutostartScript=true
EOF
chown kiosk:kiosk /home/kiosk/.config/autostart/chromium-kiosk.desktop
chmod 0644 /home/kiosk/.config/autostart/chromium-kiosk.desktop
}
section_11() {
read -p "Press [Enter] key to continue... verifying Wayland toggles and kiosk autostart path"
##############################################
# SECTION 11: WAYLAND AND KIOSK VERIFICATION
##############################################
echo "=== SECTION 11: WAYLAND AND KIOSK VERIFICATION ==="
# Ensure WaylandEnable=false is commented if present
if grep -q '^WaylandEnable=false' /etc/gdm3/custom.conf; then
sed -i 's/^WaylandEnable=false/#WaylandEnable=false/' /etc/gdm3/custom.conf
fi
# Make sure APP_URL uses http (Phidget web piece typically)
sed -i 's#https://localhost:8080#http://localhost:8080#g' /home/kiosk/.config/autostart/chromium-kiosk.desktop
chown kiosk:kiosk /home/kiosk/.config/autostart/chromium-kiosk.desktop
}
section_12() {
read -p "Press [Enter] key to continue... disabling touch gestures (GNOME keys; ignored on Plasma)"
##############################################
# SECTION 12: TOUCH GESTURE CONFIGURATION
##############################################
echo "=== SECTION 12: TOUCH GESTURE CONFIGURATION ==="
# Remove Wayland touch shortcuts (GNOME dconf; harmless if schema missing)
gsettings set org.gnome.desktop.peripherals.touchpad three-finger-swipe-enabled false || true
gsettings set org.gnome.desktop.peripherals.touchpad pinch-to-zoom false || true
}
section_13() {
read -p "Press [Enter] key to continue... applying KWin tweaks"
echo "=== SECTION 13: KWIN TWEAKS AND FINAL SETUP ==="
kwriteconfig6 --file kwinrc --group "Global Shortcuts" --key _k_friendly_name "" || true
mkdir -p ~/.config/autostart-scripts
cat > ~/.config/autostart-scripts/reload-kwin.sh <<'EOF'
#!/bin/sh
(qdbus6 org.kde.KWin /KWin reconfigure || qdbus6 org.kde.KWin.Wayland /KWin reconfigure) || true
EOF
chmod +x ~/.config/autostart-scripts/reload-kwin.sh
}
section_14() {
read -p "Press [Enter] key to continue... stopping screen blanking for kiosk user (best effort for GNOME; harmless on Plasma)"
##############################################
# SECTION 14: POWER MANAGEMENT AND SCREEN BLANKING for current user
##############################################
echo "=== SECTION 1: POWER MANAGEMENT AND SCREEN BLANKING ==="
# Stop screen blanking/suspend for kiosk session (no-op if schema absent)
sudo -u kiosk dbus-run-session gsettings set org.gnome.desktop.session idle-delay 0 || true
sudo -u kiosk dbus-run-session gsettings set org.gnome.settings-daemon.plugins.power sleep-inactive-ac-type 'nothing' || true
sudo -u kiosk dbus-run-session gsettings set org.gnome.settings-daemon.plugins.power sleep-inactive-battery-type 'nothing' || true
}
section_15() {
##############################################
# SECTION 15: FINAL SYSTEM RESTART
##############################################
echo "=== SECTION 15: FINAL SYSTEM RESTART ==="
systemctl enable chromium-kiosk || true
systemctl disable gdm3 || true
systemctl enable sddm
systemctl set-default graphical.target
im-config -n none
sudo tee /etc/environment >/dev/null <<'EOF'
GTK_IM_MODULE=none
QT_IM_MODULE=none
XMODIFIERS=@im=none
EOF
}
section_16() {
echo "=== SECTION 16: remove notifs and enable auto updater ==="
# Placeholder for future sections
sudo snap remove snapd-desktop-integration
sudo snap remove snapd-desktop-integration-test
sudo -u kiosk im-config -n none || true
}
section_17() {
##############################################
# SECTION 17: DISABLE ERROR POPUPS (Apport, notifications)
##############################################
echo "=== SECTION 17: Disable error popups for kiosk user ==="
# Disable Apport (Ubuntu crash reporter)
sed -i 's/^enabled=1/enabled=0/' /etc/default/apport || true
systemctl disable apport.service || true
systemctl mask apport.service || true
systemctl stop apport.service || true
# Disable update-notifier crash reports
rm -f /var/crash/* || true
# For kiosk user: suppress all desktop notifications
sudo -u kiosk dbus-launch gsettings set org.gnome.desktop.notifications show-banners false || true
sudo -u kiosk dbus-launch gsettings set org.gnome.desktop.notifications show-in-lock-screen false || true
# Divert stderr of systemd services to logs only (no journal popups)
mkdir -p /etc/systemd/system.conf.d
cat >/etc/systemd/system.conf.d/no-notify.conf <<'EOF'
[Manager]
DefaultStandardError=journal
DefaultStandardOutput=journal
EOF
systemctl daemon-reexec || true
}
section_18() {
##############################################
# SECTION 18: USB AUTO-UPDATE SERVICE + EVENTUAL REBOOT
##############################################
echo "=== SECTION 18: USB AUTO-UPDATE SERVICE + Eventual Reboot ==="
apt install -y inotify-tools zenity udevil udisks2
SERVICE_NAME="usb-app-updater"
SERVICE_PATH="/etc/systemd/system/${SERVICE_NAME}.service"
SCRIPT_PATH="/usr/local/bin/${SERVICE_NAME}.sh"
cat >"$SCRIPT_PATH" <<'EOF'
#!/bin/bash
set -euo pipefail
MOUNT_POINT="/mnt/RECHARJME"
TARGET_DIR="/home/recharjme/Desktop/APP"
LOG_FILE="/var/log/usb-updater.log"
# Function to log messages
log_msg() {
echo "$(date): $1" >> "$LOG_FILE"
}
# Function to get all logged-in users
get_all_logged_users() {
local users=()
# Method 1: Get users from who command (currently logged in)
while read -r user; do
[[ -n "$user" ]] && users+=("$user")
done < <(who | awk '{print $1}' | sort -u)
# Method 2: Get users from loginctl (active sessions)
while read -r user; do
[[ -n "$user" ]] && [[ ! " ${users[*]} " =~ " $user " ]] && users+=("$user")
done < <(loginctl --no-pager list-sessions --no-legend | awk '{print $3}' | sort -u)
# Method 3: If no users found, check for kiosk user specifically
if [ ${#users[@]} -eq 0 ] && id kiosk &>/dev/null; then
users+=("kiosk")
fi
# Method 4: If still no users, get first non-system user as fallback
if [ ${#users[@]} -eq 0 ]; then
local fallback_user=$(awk -F: '$3>=1000 && $3<65534 {print $1}' /etc/passwd | head -1 2>/dev/null || echo "")
[[ -n "$fallback_user" ]] && users+=("$fallback_user")
fi
# Return users as space-separated string
printf "%s\n" "${users[@]}"
}
# Function to get primary user for file ownership (first logged-in user)
get_primary_user() {
local all_users=($(get_all_logged_users))
if [ ${#all_users[@]} -gt 0 ]; then
echo "${all_users[0]}"
return 0
fi
return 1
}
# Function to show notification to all logged-in users
broadcast_notification() {
local message="$1"
local users=($(get_all_logged_users))
local notification_sent=false
log_msg "Broadcasting notification to ${#users[@]} user(s): ${users[*]}"
for user in "${users[@]}"; do
local user_uid=$(id -u "$user" 2>/dev/null || echo "")
if [ -z "$user_uid" ]; then
log_msg "Could not get UID for user $user, skipping"
continue
fi
# Set up environment for GUI applications
export XDG_RUNTIME_DIR="/run/user/$user_uid"
export DISPLAY=:0
# Try different notification methods
if sudo -u "$user" DISPLAY=:0 zenity --info --text="$message" --timeout=5 2>/dev/null; then
log_msg "Zenity notification sent to user $user"
notification_sent=true
elif sudo -u "$user" DISPLAY=:0 notify-send "USB Update" "$message" 2>/dev/null; then
log_msg "notify-send notification sent to user $user"
notification_sent=true
else
log_msg "Could not show notification to user $user"
fi
done
if [ "$notification_sent" = false ]; then
log_msg "Failed to send notification to any user"
fi
}
log_msg "USB Auto-Update Service started"
# Lock file to prevent concurrent updates
LOCK_FILE="/var/lock/usb-updater.lock"
while true; do
# Check for any USB device with RECHARJME label
DEV=$(lsblk -o LABEL,PATH -nr 2>/dev/null | awk '$1=="RECHARJME"{print $2; exit}')
if [ -n "$DEV" ]; then
# Check if update is already in progress
if [ -f "$LOCK_FILE" ]; then
log_msg "Update already in progress (lock file exists), skipping"
sleep 5
continue
fi
# Create lock file
echo $$ > "$LOCK_FILE"
log_msg "Found device: $DEV"
# Get all logged-in users and primary user for file ownership
ALL_USERS=($(get_all_logged_users))
PRIMARY_USER=$(get_primary_user)
if [ ${#ALL_USERS[@]} -eq 0 ] || [ -z "$PRIMARY_USER" ]; then
log_msg "Could not determine any logged-in users, skipping USB processing"
sleep 5
continue
fi
log_msg "Logged-in users detected: ${ALL_USERS[*]}"
log_msg "Primary user (for file ownership): $PRIMARY_USER"
# Create mount point if it doesn't exist
mkdir -p "$MOUNT_POINT"
# Try to mount the device
if mount "$DEV" "$MOUNT_POINT" 2>/dev/null; then
log_msg "Successfully mounted $DEV to $MOUNT_POINT"
# Check if APP directory exists
if [ -d "$MOUNT_POINT/APP" ]; then
log_msg "Found APP directory, starting update process"
# Show update notification to all users
broadcast_notification "Updating APP..."
# Backup existing APP if it exists
if [ -d "$TARGET_DIR" ]; then
mv "$TARGET_DIR" "${TARGET_DIR}.backup.$(date +%s)" 2>/dev/null || true
fi
# Copy new APP
mkdir -p "$(dirname "$TARGET_DIR")"
if cp -r "$MOUNT_POINT/APP" "$TARGET_DIR"; then
log_msg "Successfully copied APP to $TARGET_DIR"
# Set proper ownership to the primary user
chown -R "$PRIMARY_USER:$PRIMARY_USER" "$TARGET_DIR" 2>/dev/null || true
# Show completion notification and auto-reboot
broadcast_notification "Update complete. System will restart in 10 seconds..."
log_msg "Update completed successfully, rebooting system in 10 seconds"
sleep 10
umount "$MOUNT_POINT" 2>/dev/null || true
# Keep lock file - it will be removed when USB is unplugged after reboot
reboot
else
log_msg "ERROR: Failed to copy APP directory"
fi
else
log_msg "No APP directory found on USB device"
fi
# Unmount the device
umount "$MOUNT_POINT" 2>/dev/null || log_msg "Warning: Could not unmount $MOUNT_POINT"
else
log_msg "ERROR: Could not mount $DEV"
fi
# Always remove lock file when done processing this USB device
rm -f "$LOCK_FILE"
else
# No USB device found - remove any stale lock file
if [ -f "$LOCK_FILE" ]; then
log_msg "No USB device detected, removing stale lock file"
rm -f "$LOCK_FILE"
fi
fi
sleep 5
done
EOF
chmod +x "$SCRIPT_PATH"
cat >"$SERVICE_PATH" <<EOF
[Unit]
Description=USB Auto-Update Service for APP
After=multi-user.target
Wants=systemd-udevd.service
After=systemd-udevd.service
[Service]
Type=simple
ExecStart=$SCRIPT_PATH
Restart=always
RestartSec=5
User=root
Group=root
StandardOutput=journal
StandardError=journal
[Install]
WantedBy=multi-user.target
EOF
systemctl daemon-reload
systemctl enable "$SERVICE_NAME"
systemctl restart "$SERVICE_NAME"
systemctl status "$SERVICE_NAME" --no-pager
}
# Automatically detect the number of sections
get_max_section() {
declare -F | grep -o 'section_[0-9]\+' | grep -o '[0-9]\+' | sort -n | tail -1
}
MAX_SECTIONS=$(get_max_section)
# Main script execution logic
show_usage() {
echo "Usage: $0 [-s SECTION_NUMBER]"
echo ""
echo "Options:"
echo " -s SECTION_NUMBER Run only the specified section (1-$MAX_SECTIONS)"
echo " -h, --help Show this help message"
echo ""
echo "If no options are provided, all sections will be run in order."
echo ""
echo "Available sections:"
echo " 1 - Power Management and Screen Blanking for current user"
echo " 2 - Initial System Setup"
echo " 3 - Desktop Environment Installation"
echo " 4 - Phidget Setup and Dependencies"
echo " 5 - Touchscreen Configuration"
echo " 6 - Phidget Network Server Setup"
echo " 7 - Kiosk User Setup"
echo " 8 - GDM3 Autologin Configuration"
echo " 9 - SDDM Configuration (Alternative)"
echo " 10 - Chromium Kiosk Autostart Setup"
echo " 11 - Wayland and Kiosk Verification"
echo " 12 - Touch Gesture Configuration"
echo " 13 - KWin Tweaks and Final Setup"
echo " 14 - Power Management and Screen Blanking for kiosk user"
echo " 15 - Final System Restart"
echo " 16 - Remove notifications and enable auto updater"
echo " 17 - Disable error popups for kiosk user"
echo " 18 - USB Auto-Update Service and eventual reboot"
}
run_all_sections() {
echo "Running all sections in order..."
for i in $(seq 1 $MAX_SECTIONS); do
echo ""
echo "========================================="
echo "Starting Section $i"
echo "========================================="
section_$i
echo "Section $i completed."
done
echo ""
echo "All sections completed successfully!"
}
run_specific_section() {
local section_num=$1
if [[ $section_num -lt 1 || $section_num -gt $MAX_SECTIONS ]]; then
echo "Error: Section number must be between 1 and $MAX_SECTIONS"
exit 1
fi
echo "Running section $section_num only..."
echo "========================================="
echo "Starting Section $section_num"
echo "========================================="
section_$section_num
echo "Section $section_num completed successfully!"
}
# Parse command line arguments
while [[ $# -gt 0 ]]; do
case $1 in
-s|--section)
if [[ -z "$2" ]] || [[ "$2" =~ ^-.*$ ]]; then
echo "Error: Option -s requires a section number"
show_usage
exit 1
fi
SECTION_NUM="$2"
shift 2
;;
-h|--help)
show_usage
exit 0
;;
*)
echo "Error: Unknown option: $1"
show_usage
exit 1
;;
esac
done
# Execute based on arguments
if [[ -n "$SECTION_NUM" ]]; then
# Validate that section number is numeric
if ! [[ "$SECTION_NUM" =~ ^[0-9]+$ ]]; then
echo "Error: Section number must be a valid integer"
exit 1
fi
run_specific_section "$SECTION_NUM"
else
run_all_sections
fi
rm -rf /home/kiosk/.config/chromium/Default/Preferences
rm -rf /home/kiosk/.config/chromium/Singleton*
kwriteconfig6 --file startkderc --group General --key desktopSession empty
kwriteconfig6 --file ksmserverrc --group General --key loginMode emptySession
