VoxIP Kiosk OS 1.0.0: Raspberry Pi kiosk with web management

Chromium kiosk without a desktop for the Raspberry Pi 3, a Flask web
interface on port 8080 (kiosk, system and network management), a
restricted root helper, network changes with automatic rollback, a
healthcheck timer, install/update/uninstall scripts and a pi-gen image
build.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

uninstall.sh

@@ -0,0 +1,65 @@
+#!/usr/bin/env bash
+#
+# Remove VoxIP Kiosk OS.
+#
+#   sudo ./uninstall.sh          # remove programs and services, keep configuration
+#   sudo ./uninstall.sh --purge  # also remove configuration, state, logs and users
+#
+# Installed Debian packages (Chromium, Xorg, Flask, …) are left in place; remove
+# them with apt if they are no longer needed.
+
+set -euo pipefail
+
+PURGE=0
+[[ ${1:-} == "--purge" ]] && PURGE=1
+[[ ${1:-} == "-h" || ${1:-} == "--help" ]] && { sed -n '3,10p' "$0" | sed 's/^# \{0,1\}//'; exit 0; }
+[[ $EUID -eq 0 ]] || { echo "Voer dit script uit met sudo." >&2; exit 1; }
+
+UNITS=(voxip-kiosk-healthcheck.timer voxip-kiosk-healthcheck.service voxip-kiosk-agent.service
+       voxip-kiosk-browser.service voxip-kiosk-x.service voxip-kiosk-manager.service
+       voxip-network-guard.service voxip-boot-import.service)
+
+PREVIOUS_TARGET="$(cat /var/lib/voxip-kiosk/previous-default-target 2>/dev/null || true)"
+
+echo "==> Services stoppen en verwijderen"
+systemctl stop voxip-network-rollback.timer 2>/dev/null || true
+for unit in "${UNITS[@]}"; do
+  systemctl disable --now "$unit" 2>/dev/null || true
+  rm -f "/etc/systemd/system/$unit"
+done
+systemctl daemon-reload
+
+echo "==> Bestanden verwijderen"
+rm -rf /usr/lib/voxip-kiosk /usr/share/voxip-kiosk /usr/share/doc/voxip-kiosk
+rm -f /usr/local/sbin/voxip-kiosk-ctl
+rm -f /etc/sudoers.d/voxip-kiosk
+rm -f /etc/systemd/journald.conf.d/voxip-kiosk.conf /etc/systemd/system.conf.d/voxip-watchdog.conf
+rm -f /etc/logrotate.d/voxip-kiosk /etc/avahi/services/voxip-kiosk.service
+rm -f /etc/chromium/policies/managed/voxip-kiosk.json /etc/chromium-browser/policies/managed/voxip-kiosk.json
+rm -f /etc/systemd/zram-generator.conf
+rm -f /etc/ssh/sshd_config.d/voxip-kiosk.conf
+if [[ -f /etc/X11/Xwrapper.config.voxip-orig ]]; then
+  mv /etc/X11/Xwrapper.config.voxip-orig /etc/X11/Xwrapper.config
+else
+  rm -f /etc/X11/Xwrapper.config
+fi
+if [[ -f /etc/systemd/system/display-kiosk.service.voxip-disabled ]]; then
+  echo "    (de eerdere InfoFlow-kioskservice staat nog als display-kiosk.service.voxip-disabled)"
+fi
+
+if [[ $PURGE -eq 1 ]]; then
+  echo "==> Configuratie, status, logs en gebruikers verwijderen"
+  rm -rf /etc/voxip-kiosk /var/lib/voxip-kiosk /var/lib/voxip-kiosk-network /var/lib/voxip-kiosk-browser /var/log/voxip-kiosk
+  rm -f /etc/NetworkManager/system-connections/voxip-eth0.nmconnection /etc/NetworkManager/system-connections/voxip-wlan0.nmconnection
+  nmcli connection reload 2>/dev/null || true
+  userdel -r kiosk 2>/dev/null || true
+  userdel voxip 2>/dev/null || true
+  groupdel kiosk 2>/dev/null || true
+  groupdel voxip 2>/dev/null || true
+else
+  echo "    Configuratie bewaard in /etc/voxip-kiosk (verwijderen met --purge)."
+  echo "    VoxIP-netwerkprofielen (voxip-eth0/voxip-wlan0) blijven actief."
+fi
+
+if [[ -n $PREVIOUS_TARGET ]]; then systemctl set-default "$PREVIOUS_TARGET" >/dev/null 2>&1 || true; fi
+echo "==> VoxIP Kiosk OS is verwijderd. Herstart de Raspberry Pi om de kiosk te stoppen."