Monitoring
What if something breaks tonight?
Sunday, just after five, and an update has broken a service. How my homelab gets through a night like that, and who tells me when it can't manage on its own.
ntfy: who's knocking at five in the morning?
How a small push service I run myself brings every message from my homelab to my phone, who is allowed to post there, and why the most dangerous alert is the one that never arrives.