PostgreSQL - create user
Login first using the superuser account:
psql -h 127.0.0.1 -p 54320 -U postgres -W
Create your dev user:
CREATE USER shanks WITH PASSWORD 'password' SUPERUSER;
Bonus: create a database
CREATE DATABASE redhair;
Connect after creating a database:
psql -h 127.0.0.1 -p 54320 -U shanks -W -d redhair