curl -fsSL https://deb.nodesource.com/setup_lts.x | sudo -E bash -
sudo apt install -y nodejs git
node -v   # should show e.g. v20.x

cd /home/<USER>
git clone https://github.com/rmiessle/libcal-api.git
cd libcal-api
cp .env.example .env                              # or create by hand
nano .env                                         # fill LIBCAL_* creds and hours
npm init -y                                       # creates package.json
npm install express node-fetch@2 dotenv dayjs     # installs runtime dependencies
npm start

[Unit]
Description=LibCal study‑room board
After=network.target

[Service]
User=pi
WorkingDirectory=/home/<USER>/libcal-api
Environment=NODE_ENV=production
ExecStart=/usr/bin/node server.js
Restart=always
RestartSec=10

[Install]
WantedBy=multi-user.target

sudo systemctl daemon-reload
sudo systemctl enable --now libcal-board
sudo systemctl status libcal-board   # should say “active (running)”

sudo raspi-config    # select option A6 and revert to X11

sudo nano /home/<USER>/dpms_disable.sh

#!/bin/bash 
export DISPLAY=:0 
xset s noblank 
xset s off 
xset -dpms

chmod +x /home/USER/dpms_disable.sh

sudo nano /home/<USER>/load-kiosk.sh

#!/bin/bash
URL="http://localhost:4000"
until curl --silet --head "$URL" | grep "200 OK" > /dev/null; do
 sleep 5
done
chromium --noerrdialogs --disable-infobars --incognito --no-first-start --kiosk http://localhost:4000

chmod +x /home/USER/load-kiosh.sh

sudo apt update
sudo apt install unclutter-xfixes

sudo nano /etc/xdg/lxsession/LXDE-pi/autostart

@lxpanel --profile LXDE-pi 
@pcamfm --desktop --profile LXDE-pi 
@/home/<USER>/dpms_disable.sh 
@unclutter-xfixes -idle 0
@sed -i 's/"exited_cleanly":false/"exited_cleanly":true/' /home/<USER>/.config/chromium/Default/Preferences 
@sed -i 's/"exit_type":"Crashed"/"exit_type":"Normal"/' /home/<USER>/.config/chromium/Default/Preferences 
@home/<USER>/load-kiosk.sh

sudo nano ~/blank_screen.sh

#!/bin/bash 
sleep 5 
pkill chromium 
sleep 5 
export DISPLAY=:0 
xhost +local: 
xset +dpms 
xset dpms force off

chmod +x ~/blank_screen.sh 

crontab -e

###Semester hours 
##reboot at 0755 
55 07 * * * pkill chromium; sleep 15; sudo reboot
##turn off display at 0100 
00 01 * * * /home/USER/blank_screen.sh 
###Summer hours 
##reboot at 0855 Monday-Friday 
#55 08 * * 1-5 pkill chromium; sleep 15; sudo reboot 
##turn off display at 1630 Monday-Friday 
#30 16 * * 1-5 /home/<USER>/blank_screen.sh

sudo nano ~/.local/share/applications/shutdown-kiosk.desktop

[Desktop Entry] 
Name=Shutdown Kiosk 
Comment=Shuts down Chromium Browser Kiosk 
Exec=pkill chromium 
Icon=utilities-terminal 
Terminal=false 
Type=Application 
Categories=Utility;

chmod +x ~/.local/share/applications/shutdown-kiosk.desktop

sudo nano ~/restart-kiosk.sh

#!/bin/bash 
export DISPLAY=:0 
xset s noblank 
xset s off 
xset -dpms 
@unclutter-xfixes -idle 0
@sed -i 's/"exited_cleanly":false/"exited_cleanly":true/' /home/<USER>/.config/chromium/Default/Preferences 
@sed -i 's/"exit_type":"Crashed"/"exit_type":"Normal"/' /home/<USER>/.config/chromium/Default/Preferences 
@chromium --noerrdialogs --disable-infobars --incognito --no-first-start --kiosk http://localhost:4000

chmod +x ~/restart-kiosk.sh

sudo nano ~/.local/share/applications/restart-kiosk.desktop

[Desktop Entry] 
Name=Restart Kiosk 
Comment=Restarts Chromium Browser Kiosk 
Exec=/home/USER/restart-kiosk.sh 
Icon=utilities-terminal 
Terminal=false 
Type=Application 
Categories=Utility; 

chmod +x ~/.local/share/applications/restart-kiosk.desktop