huh i have some decent alertmanager rules from https://awesome-prometheus-alerts.grep.to and alerting through Matrix with go-neb (with a NixOS module :DDD)
definitely some rule tweaking to do still but it's going p well
next is writing a prometheus middleware that collects borg stats on backup completion, and alertmanager rules for when a backup didn't happen
Smol server part of the pixie.town infrastructure. Registration is approval-based, and will probably only accept people I know elsewhere or with good motivation.