# Lumi (/) Lumi lives in the menu bar. It has no Dock icon and no window of its own until you open one — the menu bar icon is the way in. ## What it does [#what-it-does] Bind any combination to launching or focusing an app, toggling one, opening a URL, running a command, sending a keystroke, arranging or cycling windows, pressing a media key, or a system command. Hold Caps Lock to stamp a configurable modifier set — Control, Shift, Command, Option — onto whatever you press next. One combination opens a cheatsheet, then one bare key per tier picks from it. Twelve actions behind one combination, and only the first key to learn. Type `vn`, get `Vietnam` — on the following space or the moment the trigger is finished, per snippet, and scoped to the applications you choose. A replacement, an alert or a URL can hold `{{$date}}`, the clipboard or the current selection, filled in fresh every time it fires. A graph of nodes that runs from a trigger to an end, built by dragging. One shortcut that does four things in order, with a condition in the middle. ## Requirements [#requirements] macOS 11 or later, on Apple silicon or Intel — the download is a universal binary, so there is one disk image for both. The Hyper key, Send Keystroke, media control and snippets need the **Accessibility** permission. Log out, Restart and Shut down need a second, separate grant. Both are covered in [Permissions](/get-started/permissions). ## Start here [#start-here]