That actually does the trick for me. I usually use the release version. However, I wanted to take advantage of the great speed increase in 1.3a2 with DFT caching, hence the build-it-myself situation as the Anaconda cloud doesn’t have the conda binary for mac for this version yet. Thanks for the help!
Preliminarily, I’ve seen speed improvement on a 60-atom geometry optimization using b3lyp/6-31g* from 25 hrs (psi4 1.2.1) to 16hrs (1.3a2) on my lab computer (4 cores). Sometimes I got lucky and even got to an 8-hr run. This is the main reason I wanted to build the alpha 2 on my mac.