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amtrino icon

amtrino for Mac

Breathing menu bar dots that show Claude Code and Codex CLI session status at a glance.

By arian-shamaei. Free and open source, MIT licence.

Get it with OpenDMG View source on GitHub

amtrino at a glance

Version
0.3.1
Released
16 September 2026
Download size
2.7 MB
Works on
Apple silicon and Intel
Licence
MIT
Category
Artificial Intelligence
Developer
arian-shamaei
GitHub stars
2

About amtrino

Every AI coding session on your Mac, at a glance — live menu bar dots for Claude Code + Codex CLI

Screenshots

amtrino screenshot 1amtrino screenshot 2amtrino screenshot 3

How to install amtrino on a Mac

  1. Get OpenDMG. It is a free app store for open source Mac apps. Download OpenDMG.
  2. Search for amtrino and press Get. OpenDMG downloads version 0.3.1 from arian-shamaei's own GitHub release.
  3. Open it. The download is checked against its SHA-256 fingerprint and its signature is checked on your Mac before it lands in Applications.

Updates to amtrino show up in OpenDMG and install with one button. No account is needed.

Prefer to do it by hand? The developer's file is on GitHub: amtrino-0.3.1.zip (2.7 MB).

What is new in amtrino 0.3.1

## The idle CPU fix

amtrino 0.3.0 could hold a full CPU core indefinitely, animating or not. Each time the menu bar icon image was set, AppKit re-captured the status item; that capture re-resolved the button's appearance, which fired amtrino's appearance observer, which redrew the icon, which set the image again. A closed loop with no timer in it.

- **Redraws are now keyed.** A redraw that would change no pixel leaves the button alone, which breaks the loop and also stops fleet ticks from re-capturing an unchanged icon.
- **The appearance observer only repaints on a real light/dark flip.**
- **The busy pulse runs at 4 frames per second** instead of 10, sampled on a fixed clock so identical frames dedupe.

Measured on an M2 Max: idle 92% → 0%; one dot pulsing 92% → 7%.

Notarized and stapled. Install or upgrade:

```
brew install --cask arian-shamaei/anthropometer/amtrino
```

or grab `amtrino-0.3.1.zip` below.

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