Lungo 2.2.2 〈PC〉

As of late 2023, version 2.4.2 included bug fixes, with later versions (2.6.0, 2.7.1) improving compatibility with macOS 14 Sonoma and 15.

Keeps your Mac awake and prevents the screen from dimming, which is useful for presentations, reading long articles, or monitoring tasks. Lungo 2.2.2

Activated via a menu bar icon (right-click to activate, or left-click based on settings). As of late 2023, version 2

Allows setting a default duration, using custom keyboard shortcuts, and opting to allow the display to sleep while the computer stays awake. Allows setting a default duration, using custom keyboard

It does not prevent sleep if you close the lid (a limitation of the Mac App Store).

If you are looking for a (like a customized timer) or having compatibility issues with a certain version of macOS, let me know so I can check for more details. Lungo - App Store - Apple