GitHub - oronbz/Sitter: macOS menu bar app for alternating between sitting and standing at a standing desk

A macOS menu bar app for alternating between sitting and standing at a standing desk. Helps avoid fatigue and over-sitting with configurable timers and notifications.

Features

Timer countdown displayed in the menu bar with sit/stand icon
Configurable sitting and standing durations (default 30 minutes each)
Local notifications with sound when a session ends
Auto-pauses when your Mac is locked, asleep, or screensaver is active
Resume/Pause, Switch position, and Restart controls
Launch at login support
No Dock icon -- lives entirely in the menu bar

Screenshots

Popover	Settings

Install

brew tap oronbz/tap && brew install --cask sitter

Or download Sitter.zip from the latest release, unzip, and move Sitter.app to /Applications.

Update

brew update && brew upgrade --cask sitter

Requirements

macOS 15.0 (Sequoia) or later

Building from Source

Clone the repo
Open Sitter.xcodeproj in Xcode
Build and run (Cmd+R)

Releasing a New Version

make release VERSION=1.0.0

This bumps the version, commits, builds a Release archive, creates a GitHub release with the zip attached, and updates the Homebrew tap cask with the new sha256. Omit VERSION= to be prompted interactively.