I'm using tailscale for remote access, and the keys for my Channels tailscale node have expired.
This machine's key expired [N] days ago and needs to be reauthenticated.
The server is still connected to tailscale and I haven't noticed any degraded functionality yet, but it makes me nervous that something is going to break at the worst possible moment. (Say, either my upcoming trips.)
How can I update the keys?