every event kern surfaces — crashes and watchdog restarts, health alerts, backup results, schedule runs, update checks — lands in the notification center (the bell in the title bar, with jump-to-server). when the window isn't focused, the same notification is mirrored to a native os toast.

settings → notifications & alerts → *native os notifications* removes the os mirror while keeping the in-app center. the setting is stored in config.json and survives restarts.

set a webhook url and enable *send webhook events*. every notification is posted as json:

json
{ "content": "[error] Server crashed\nexit 1", "text": "[error] Server crashed\nexit 1" }

content is what discord reads; text is what slack incoming webhooks read. a generic consumer gets both. delivery is best-effort with a 10-second timeout — a dead endpoint never blocks a lifecycle action.

rules are regular expressions matched against every streamed log line. a match raises a notification (and fires the webhook), throttled to once per minute per rule so a repeating error can't spam you.

patterns use rust regex syntax. invalid patterns are skipped with a note in the app log rather than disabling the other rules. manage rules under settings → notifications & alerts.