triplepat.com went down on a push. Tailscale was down (but this wasn't detected: thing to fix #1) so the bad push was unable to bind the internal services and refused to bring anything up.

We logged the machine back into our tailnet, redeployed, and everything was fine.

No user data was lost (again: for the outage to count as real every machine must be unreachable), but we now have a new thing to monitor and alert on to prevent such outages in the future.