hammerspoon VS BlackHole

You'll be disappointed because my use case is pretty simple - move the dock, remaximize all windows on the main screen and move chrome to my secondary screen.

https://github.com/jemmyw/hammerspoon/blob/main/init.lua

This tip is certainly good, but I prefer to use blackhole in combination with standard quicktime, then compress the video to mp4 without losing quality using handbrake.

If you want free yet still powerful, check out the open-source kap. Pair it with something like BlackHole to reroute your system audio into kap and you've got a great combo without spending a dime.

Use the built in screen recorder with the cmd + shift + 5 hotkey and then pair it with the free internal audio capture software blackhole or vb-audio cable.

This is neat!

One note: for loopback on macOS, instead of iShowU Audio Capture Device, one could also use BlackHole, which is open source: https://github.com/ExistentialAudio/BlackHole

And can be installed with brew:

    brew install blackhole-2ch

Blackhole is an open-source virtual audio driver. To install, open Terminal and enter brew install blackhole2ch (2 channels). After that, follow the instructions in README.md

Blackhole (Not that I don't love my Rogue Amoeba tools). Virtual routing - does all sorts of crazy cool things and yes, open source.

Get the audio mastering toolkit here - you want AU Lab, (bottom of page) then Blackhole.