# Graceful nightly updates (../../../libexec/quine-linux/update-*):# - skip the run while the newest image is one a user rolled back from;# - on failure (after uupd's own retries), record why, for the update bar;# - on success, forget the last failure.[Unit]OnFailure=quine-update-failed.service[Service]ExecCondition=/usr/libexec/quine-linux/update-skip-rejectedExecStartPost=-/usr/bin/rm -f /var/lib/quine-linux/last-update-failure.json