Best for

Developers who prefer a config file and an API over a GUI automation app.

Why it deserves attention

Hammerspoon exposes macOS APIs to Lua, so one config can bind hotkeys, move and resize windows, react to app launches and Wi-Fi changes, read the clipboard, draw on screen, and run shell commands, with a console for live debugging. It is MIT-licensed with about 16,400 GitHub stars and free, and a large community config collection covers common setups. Everything is code: there is no settings UI, you maintain your init.lua yourself, and macOS permission changes or updates can break scripts that need Accessibility or automation access.

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Can replace

BetterTouchTool

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