Setup a Mute Indicator Light for Zoom w/ Hammerspoon & blink(1)

Here’s a quick tutorial on how to use Hammerspoon to create a really useful mute indicator using blink(1). Hammerspoon is an interesting “programmer’s multi-tool” that lets you script your Mac computing environment with the easy-to-use Lua language. Lua is used in a lot of other places (I’ve seen it in synthesizers even!) While this for Zoom, the technique can easily be adapted to other video conferencing software.