There is no gunits formula on homebrew, the formula is called gnu-units.

The command to use it is `gunits` though.

Given that I invoke GNU Units far more often than I install it, yes, I referred to the command name.

It's trivial to find the actual package name using 'brew list | grep units'.

See note 2: <https://news.ycombinator.com/item?id=31449413>

Most of the time I can get away with pretending MacOS is just sitting on top of Linux, but occasionally the BSD differences pop up and bite me.

GNU/Linux, or as I've recently been taking to calling it, GNU plus Linux