Seconding Josh’s reminder that CHT does not play nice with non CHT based CouchDB installs. Here’s a related forum post on the topic where there were bad side effects. We strongly recommend you run the docker setup as outlined on the dev setup docs.
Looking at the links Josh provided - I didn’t see a way of running Nouveau with brew. I suspect you’ll have to come over to use docker anyway!
Do let us know where you end up - as you said - what we share here can benefit other users who are in similar situations.