Ah I see in my head I expect blackouts to be a few minutes, so I hadn't thought what would happen after several hours. When I was in the embedded world I used t

Ah I see in my head I expect blackouts to be a few minutes, so I hadn't thought what would happen after several hours. When I was in the embedded world I used to explain that https implies a whole lot of infrastructure that isn't obvious at first for this reason (and also that cert rotation implies the ability to update the firmware or some filesystem which isn't always the case).