[Unit]
Description=HAPX-UI self-update — STEP 1: download & verify (no restart)
# Triggered by the web UI via `systemctl start --no-block`. This step ONLY
# obtains + verifies the new binary into /var/lib/hapx-ui-staging/hapx-ui.staged — it
# does NOT touch the running service. The operator then confirms activation,
# which starts the separate hapx-ui-activate.service.
#
# Runs as its own transient unit under PID 1 (own cgroup), independent of
# hapx-ui.service.
After=network-online.target
Wants=network-online.target

[Service]
Type=oneshot
ExecStart=/usr/local/sbin/hapx-ui-update build

# No [Install] section — this unit is started on demand, never enabled at boot.