Maybe only relevent if new variant occurs or if add traffic or other data.
Options
just tell people to refresh at the 9am each day. Maybe insert the update time into the page not just the plots.
RSS feed. people can use any feed reader to poll this file
just write a xml file with all update times
where to get update times? write it in actions only going forward? otherwise have to use api get actions history
could have jekyl posts for each too.
We don't want to keep historical plots so it does mean any plots will be the latest so might seem strange. But could include some basic numbers in text.
Web push
free service like https://www.webpushr.com/ seems reasonably easy. Use their JS + do curl api call in actions to send to all subscribers
Maybe only relevent if new variant occurs or if add traffic or other data.
Options