# A Modular macOS Toolkit for Clamshell Sleep and Mouse Scroll

> A free modular menu-bar toolkit fixes clamshell sleep on battery, per-app volume, inverted mouse scrolling, and file cut-and-paste on macOS.

Published: 2026-08-25
URL: https://daniliants.com/insights/a-modular-macos-toolkit-that-fixes-clamshell-sleep-and-scroll/
Tags: macos, developer-tools, productivity, open-source

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## Summary

A creator reviews a free, modular macOS menu-bar utility that bundles fixes for long-standing Mac annoyances: sleep-on-unplug in clamshell mode, no per-app volume control, backwards or choppy external-mouse scrolling, and missing native cut-and-paste for files. After a month of daily use, the reviewer singles out five modules as genuinely useful and several others as skippable. Note that the app's exact name is unclear from the video's auto-captions, so verify it before installing.

## Key Insight

- **Modular install model.** Install only the tools you need, uninstall the rest. This avoids the bloat of most "mega utility" apps.
- **Clamshell-mode fix (Keep Awake).** macOS forces sleep the instant an external-monitor Mac is unplugged from charger in clamshell mode, and the built-in `caffeinate` terminal command doesn't solve this because it also kills the external display. The module keeps both the Mac and the monitor alive on battery.
- **Per-app volume mixer.** macOS has no Windows-style per-app volume control out of the box. This routes different apps to different outputs and levels simultaneously, for example Spotify through speakers and editing software through headphones.
- **External mouse fix.** macOS applies trackpad-style "natural scrolling" logic to mice by default, which feels inverted and choppy to anyone coming from Windows or Linux. The fix inverts scroll direction specifically for mice, leaving trackpad behavior untouched, and smooths it.
- **Screenshot and OCR text extractor.** Highlight text directly on-screen (in an image, video, or PDF) and it copies to the clipboard, with no screenshot-then-OCR round trip.
- **File cut-and-paste.** Restores Windows and Linux style Cmd+X / Cmd+V for moving files between folders, replacing the native (and widely disliked) Cmd+Option+V "paste as move" shortcut.
- **Quit and Close.** Makes clicking the red close button actually quit apps like Chrome, Notes, and Obsidian that otherwise linger in the dock or menu bar with no open windows.
- **System stats module.** Menu-bar or standalone panel for CPU and RAM, live network bandwidth plus a built-in speed test, battery health and real-time power draw, and disk health, similar to the standalone "Stats" menu-bar app but bundled in.
- **Cleaning mode.** Locks keyboard and trackpad input so wiping down the machine doesn't trigger keystrokes, useful on black-keyboard MacBook Pros where dust shows fast.
- **Uninstaller and cleaner.** Removes an app plus its cache, logs, and leftovers on uninstall, or retroactively cleans leftovers from apps already removed the normal way.
- **Modules the reviewer tried but didn't keep**: Command Bar (a Spotlight-like launcher with no added value over stock Spotlight) and Quick Panel (a floating shortcuts panel, rarely used).
- **Gap versus Windows PowerToys**: no built-in "always on top" window pinning. The reviewer plugs that gap with a separate floating-shelf app for staging files during drag-and-drop between apps while editing or coding.