Static backup site for Zenodo in case of maintenance and/or unexpected downtime.
./update-message.sh show # Show current message
./update-message.sh default # Reset to default message
./update-message.sh set '2025-10-06 06:30' 'Zenodo will be unavailable for 1-2 minutes.' # Set message with datetime (UTC)
./update-message.sh set 'Zenodo is currently down.' # Set message without datetime