Perhaps it is me but I've found that homebrew seems to give more errors and take longer than it used it. I just got hit with this error:

	/usr/local/opt/postgresql/bin/postgres -v
	dyld: Library not loaded: /usr/local/opt/icu4c/lib/libicui18n.69.dylib
	  Referenced from: /usr/local/opt/postgresql/bin/postgres
	  Reason: image not found

Digging into the OSX postgres log here:

tail -n 100 /usr/local/var/log/postgresql.log

helped but didn't tell me what to do.

An awful lot of googling didn't find me an answer but then I hit on:

brew reinstall icu4c

That churned for a bit but then declared a decisive victory:

	🍺  /usr/local/Cellar/maxima/5.46.0: 2,842 files, 119.1MB
	==> Running `brew cleanup maxima`...
	Removing: /usr/local/Cellar/maxima/5.45.1_4... (2,774 files, 118.4MB)
	Removing: /Users/sjohnson/Library/Caches/Homebrew/maxima--5.45.1_4... (38.3MB)
	==> Upgrading postgresql
	  13.2_2 -> 14.2_1

	==> Installing dependencies for postgresql: krb5
	==> Installing postgresql dependency: krb5
	==> Pouring krb5--1.19.3.catalina.bottle.tar.gz
	🍺  /usr/local/Cellar/krb5/1.19.3: 162 files, 5.2MB
	==> Installing postgresql
	==> Pouring postgresql--14.2_1.catalina.bottle.tar.gz
	==> Caveats
	To migrate existing data from a previous major version of PostgreSQL run:
	  brew postgresql-upgrade-database

	This formula has created a default database cluster with:
	  initdb --locale=C -E UTF-8 /usr/local/var/postgres
	For more details, read:
	  https://www.postgresql.org/docs/14/app-initdb.html

	To restart postgresql after an upgrade:
	  brew services restart postgresql
	Or, if you don't want/need a background service you can just run:
	  /usr/local/opt/postgresql/bin/postgres -D /usr/local/var/postgres
	==> Summary
	🍺  /usr/local/Cellar/postgresql/14.2_1: 3,305 files, 45.5MB
	==> Running `brew cleanup postgresql`...
	Removing: /usr/local/Cellar/postgresql/13.2_2... (3,218 files, 42.6MB)
	Removing: /Users/sjohnson/Library/Caches/Homebrew/postgresql--13.2_2... (11.1MB)
	==> Checking for dependents of upgraded formulae...
	==> No broken dependents found!
	==> Caveats
	==> postgresql@11
	This formula has created a default database cluster with:
	  initdb --locale=C -E UTF-8 /usr/local/var/postgresql@11
	For more details, read:
	  https://www.postgresql.org/docs/11/app-initdb.html

	postgresql@11 is keg-only, which means it was not symlinked into /usr/local,
	because this is an alternate version of another formula.

	If you need to have postgresql@11 first in your PATH, run:
	  echo 'export PATH="/usr/local/opt/postgresql@11/bin:$PATH"' >> ~/.zshrc

	For compilers to find postgresql@11 you may need to set:
	  export LDFLAGS="-L/usr/local/opt/postgresql@11/lib"
	  export CPPFLAGS="-I/usr/local/opt/postgresql@11/include"

	For pkg-config to find postgresql@11 you may need to set:
	  export PKG_CONFIG_PATH="/usr/local/opt/postgresql@11/lib/pkgconfig"


	To restart postgresql@11 after an upgrade:
	  brew services restart postgresql@11
	Or, if you don't want/need a background service you can just run:
	  /usr/local/opt/postgresql@11/bin/postgres -D /usr/local/var/postgresql@11
	==> maxima
	Emacs Lisp files have been installed to:
	  /usr/local/share/emacs/site-lisp/maxima
	==> postgresql
	To migrate existing data from a previous major version of PostgreSQL run:
	  brew postgresql-upgrade-database

	This formula has created a default database cluster with:
	  initdb --locale=C -E UTF-8 /usr/local/var/postgres
	For more details, read:
	  https://www.postgresql.org/docs/14/app-initdb.html

	To restart postgresql after an upgrade:
	  brew services restart postgresql
	Or, if you don't want/need a background service you can just run:
	  /usr/local/opt/postgresql/bin/postgres -D /usr/local/var/postgres

I followed this up with:

echo 'export PATH="/usr/local/opt/postgresql@11/bin:$PATH"' >> ~/.zshrc

And then to confirm success:

brew services restart postgresql@11

And, once again, I have postgres running locally.