I would suggest also adding a process for upgrades, a switch that shows that the downtime is expected rather than relying on the error messages. Custom error messages is still a good idea though.
Thanks for the update, the new theme on the web looks a bit neater than the old one.
did somethign go wrong with the pictrs update? I am seeing lots of missing images from feddit this morning.
When this has come up before I have mentioned I would rather these not get banned, but an auto-mod style message is included to explain that they are low quality sources.