[Unit]
Description=ButtonTask display/GUI watchdog (panel re-init, crash escalation)
# Before the UI: on a fresh boot it re-inits the panel while nobody holds the
# display, then reports READY and buttontask starts (see boot_takeover).
Before=buttontask.service
StartLimitIntervalSec=0

[Service]
# Runs as root: needs fb0/blank, systemctl stop/start and reboot.
# See the header of bt-displaywatch for what it watches.
Type=notify
NotifyAccess=main
WatchdogSec=60
# Never hold the UI back for long if something hangs before READY.
TimeoutStartSec=30
Environment=BUTTONTASK_ROOT=/opt/buttontask
Environment=PYTHONUNBUFFERED=1
ExecStart=/usr/bin/python3 /opt/buttontask/scripts/bt-displaywatch run
Restart=always
RestartSec=5

[Install]
WantedBy=multi-user.target