Kian Broderick

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Hammerspoon

Published February 2, 2026


I’ve been configuring a new app called Hammerspoon for macOS, which is basically just an automation tool. It lets you interact with some functionality on your computer by writing lua programs. So far, all I’ve done with it is configure hotkeys to open certain apps and tile them in a specific way for notetaking. Before I was doing it all manually, but now I can press control + O and that automatically gets tiled to the left and opens my note taking app to the right. I’ve also set it up to automatically reload some of my configuration files whenever they get saved.

It’s a very powerful app that is very easy to use, plus it is completely free and open source. Lua is a fun and easy language that I like using too. I’ve seen some crazy things done with hammerspoon online, like building whole menus for interacting with your wifi settings. I want to configure it so that certain apps run whenever I plug into an external monitor. It’s fun to make my computer super personalized and unique.