[tomduncalf]

> BlackHole is new and I have not tried it yet.

Hmm it's not that new, I guess maybe the article is old? In any case, BlackHole works very well for me on Mac (I only really use it for real time recording the system audio into Quicktime screen recordings, so have not stress tested it).

An interesting related-ish Mac app is Monkey Audio Rewind[1], which runs in the background and is always recording the last n minutes of audio, then if there's something you want to capture (e.g. you're playing around on a soft synth and some serendipitous brilliance happens), you can just go into Rewind and export that bit of audio from the buffer. It's nicely designed and seems to work well.

[1] https://monkeyc.audio/