I like how Let's Encrypt mails you to warn about potential issues. It reminds me when a cert is about to expire (so far that's only happened intentionally, but still a good trigger) and warned about the deprecation of the ACMEv1 API.
Dehydrated updated now.
@ayo I'm just going to add that let's encrypt's reminders shouldn't be relied on (I'm pretty sure I had certificates coming close to expiration without let's encrypt's warning), and some internal monitoring should be implemented anyway.
A lonely little town in the wider world of the fediverse.