Refactor build-cloudinit-image.sh and deploy-to-proxmox.sh to improve image management: streamline image download process, enhance error handling for checksum verification, and ensure proper directory creation for cloud-init images. Update deployment scripts for better user feedback and reliability.

chromium-setup/emmc-provisioning/cloud-init/first-boot.sh

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+#!/bin/bash
+# First-boot script: install packages, Chromium kiosk, KDE Plasma + touch.
+# Intended to be downloaded and run by cloud-init (see user-data-remote-gnss.example).
+# Run as root.
+
+set -e
+
+export DEBIAN_FRONTEND=noninteractive
+
+# Packages
+apt-get update -qq
+apt-get install -y -qq \
+  git \
+  chromium-browser \
+  wmctrl \
+  openssh-server \
+  kde-plasma-desktop \
+  maliit-keyboard \
+  xinput-calibrator
+
+# Autostart dir for user pi
+mkdir -p /home/pi/.config/autostart
+
+# Chromium kiosk files from file server
+FILE_SERVER="http://10.130.60.141:5000/files"
+curl -fsSL "${FILE_SERVER}/start-chromium.sh" -o /home/pi/start-chromium.sh
+chmod 755 /home/pi/start-chromium.sh
+chown pi:pi /home/pi/start-chromium.sh
+curl -fsSL "${FILE_SERVER}/chromium-kiosk.desktop" -o /home/pi/.config/autostart/chromium-kiosk.desktop
+chmod 644 /home/pi/.config/autostart/chromium-kiosk.desktop
+chown pi:pi /home/pi/.config/autostart/chromium-kiosk.desktop
+
+# KDE Plasma: default session (X11 for Chromium)
+mkdir -p /etc/lightdm/lightdm.conf.d
+cat > /etc/lightdm/lightdm.conf.d/99-default-session.conf << 'LIGHTDM'
+[Seat:*]
+user-session=plasmax11
+LIGHTDM
+
+# KDE touch-friendly
+cat > /home/pi/.config/kdeglobals << 'KDE'
+[General]
+ForceFontDPI=120
+KDE
+chown pi:pi /home/pi/.config/kdeglobals
+chmod 644 /home/pi/.config/kdeglobals
+
+cat > /home/pi/.config/kwinrc << 'KWIN'
+[Windows]
+BorderlessMaximizedWindows=true
+[Plugins]
+touchpointsEnabled=true
+KWIN
+chown pi:pi /home/pi/.config/kwinrc
+chmod 644 /home/pi/.config/kwinrc
+
+# On-screen keyboard (maliit)
+cat > /home/pi/.config/autostart/maliit-keyboard.desktop << 'MALIIT'
+[Desktop Entry]
+Type=Application
+Name=Maliit Keyboard
+Exec=maliit-keyboard -r
+X-GNOME-Autostart-enabled=true
+MALIIT
+chown pi:pi /home/pi/.config/autostart/maliit-keyboard.desktop
+chmod 644 /home/pi/.config/autostart/maliit-keyboard.desktop
+
+# Ownership for all of pi's config
+chown -R pi:pi /home/pi/.config
+
+# Set KDE Plasma (X11) as default session
+update-alternatives --set x-session-manager /usr/bin/startplasma-x11 2>/dev/null || true
+
+# reTerminal DM: install Seeed display/touch drivers (screen will work after reboot)
+REPO_DIR="/tmp/seeed-linux-dtoverlays"
+git clone --depth 1 https://github.com/Seeed-Studio/seeed-linux-dtoverlays "$REPO_DIR"
+"$REPO_DIR/scripts/reTerminal.sh" --device reTerminal-DM
+rm -rf "$REPO_DIR"
+
+# Reboot so display and touch work
+reboot