I came across this repository from the Spacemacs#develop installation instructions, which I noticed recently changed from recommending https://github.com/railwaycat/homebrew-emacsmacport to this.

What's the difference between this and that?

The Spacemacs instructions only mention that this provides a Spacemacs icon, yet emacs-mac has --with-spacemacs-icon (at least it did last time I installed it).

I'm happy to use this repo, just wanted to understand which of the two might be better choices going forward. I know that you're involved in Spacemacs, so perhaps this emacs distribution might have a better chance at alignment with Spacemacs?