There are 3 repositories under global-shortcuts topic.
A global shortcut/hotkey for Desktop Qt-Applications
This plugin allows Flutter desktop apps to defines system/inapp wide hotkey (i.e. shortcut).
Cross-platform library for handling system-wide shortcuts in Qt applications
Google Chrome extension which allows you to run your scripts on any website using keyboard shortcuts when the browser window is minimized.
Global hotkey daemon.
the cross-platform global shortcut (aka hotkey) module for node.js and electron
Extension for Chrome based browsers which provides global keyboard shortcuts to toggle your camera and microphone on and off in Google Meet.