Insomnia 🌙

A tiny macOS menu bar app that toggles pmset -a disablesleep — keep your Mac awake with the lid closed, with one click.

What it does

• 🌙 moon.stars.fill = sleep disabled (Mac stays awake, even with the lid closed)
• 💤 moon.zzz = sleep allowed (normal macOS behavior); dimmed while on battery
• State is re-read from pmset -g every time the menu opens, so it never lies

Features

• One-click toggle (⌘T) — first use asks for the admin password once, then installs a narrowly-scoped sudoers rule (/etc/sudoers.d/insomnia) that allows exactly pmset -a disablesleep 1 and 0 without a password. Every later toggle is instant and silent.
• Auto-Sleep on Battery (on by default) — when unplugged, sleep is automatically re-enabled so your Mac doesn't drain in a bag; back on AC, insomnia resumes. Uses IOKit power-source notifications.
• Launch at Login (⌘L) — via SMAppService (macOS 13+).
• No Dock icon, no window — pure menu bar (LSUIElement).

Install (no release download needed)

Requires macOS 12+ and Xcode Command Line Tools (xcode-select --install if you don't have them).

curl -fsSL https://raw.githubusercontent.com/Panoplos/Insomnia/master/install-from-source.sh | bash

This clones the repo to a temp dir, builds Insomnia.app, installs it to /Applications, and launches it. On first toggle you'll enter your password once; after that everything is passwordless.

Build manually

git clone https://github.com/Panoplos/Insomnia.git
cd Insomnia
./build.sh      # builds Insomnia.app and runs self-checks
./install.sh    # optional: installs to /Applications

Uninstall

curl -fsSL https://raw.githubusercontent.com/Panoplos/Insomnia/master/uninstall.sh | bash

(or run ./uninstall.sh from a clone). It removes the app, preferences, and the sudoers rule; the password prompt appears only if the rule exists. If "Launch at Login" was enabled, a dead entry may linger under System Settings > Login Items — inert, delete it there manually.

Manual uninstall:

1. Menu: uncheck Launch at Login, then Quit
2. Remove the app: rm -rf /Applications/Insomnia.app
3. Remove the sudoers rule: sudo rm /etc/sudoers.d/insomnia
4. Reset preferences: defaults delete local.makoto.Insomnia

How it works

• Read: pmset -g → parse the SleepDisabled line
• Write: sudo -n pmset -a disablesleep 1|0 (passwordless via the sudoers rule; the rule is created through a one-time admin prompt and validated with visudo before it sticks)
• Battery watch: IOPSNotificationCreateRunLoopSource from IOKit

Note: disablesleep is a single system-wide switch — it cannot be scoped to "AC only" via pmset, which is why the battery handling lives in the app.

Project layout

main.swift                  # the entire app (~170 lines)
build.sh                    # builds Insomnia.app, runs self-checks
install.sh                  # installs the built app to /Applications
install-from-source.sh      # curl|bash bootstrap: clone + build + install
uninstall.sh                # full removal: app, prefs, sudoers rule