# Notifications

The bell in the navigation band, or `⌃⌥U` on macOS and `Ctrl+Alt+U` on Linux, opens the notifications.

## Where they come from

Every fetch finds what changed on the remotes: which branches moved, with which commits, by whom. tratto fetches on its own,
every few minutes (**Settings › General › Sync**), and also after a fetch, Fetch All or pull you start yourself. Only
one running tratto fetches on its own at a time.

What it found stays for 30 days.

## System notifications

tratto also posts system notifications: through Notification Center on macOS and the desktop's notification service on
Linux. A round posts at most five, and folds the rest into one more.

## Choosing what notifies you

**Settings › General › Notifications** chooses all repositories or only some. Per project you can name the branches
that matter with patterns such as `release/*`, or leave some out with `!wip/*`. A branch's context menu has **Notify
me** and **Mute** for that one branch.

An AI summary of each event can be turned on there too, when an AI tool is connected.

## Sounds

**Settings › General › Sounds** gives tratto a voice. Each sound is set on its own to **Notify with sound**, **Notify
without sound** or **Off**, and **Mute every sound** silences them all while the notifications still show.

- **Notifications from fetch:** one sound for a round that posts notifications, however many it posts. It is silent
  until you turn the sound on.
- **Machine busy:** when the CPU stays above the threshold (80% by default) for the whole time set (5 minutes by
  default). It tells once, and again only after the CPU has come back under the threshold. Unless it is off, tratto
  keeps reading the machine even with its item hidden from the status bar.
- **Claude window reset:** when the five-hour window or the weekly one starts again, at the time of the reset.
- **Claude quota near its limit:** once per window and period, when its use reaches the threshold (90% by default).

Every sound ships with tratto. To use your own, write the path of a sound file in its **Own sound** field; a file
that is gone falls back to the shipped one. On Linux the sound plays through `pw-play`, `paplay` or `aplay`, on macOS
through `afplay`; without any of them tratto stays silent.