title: How to completely remove Postgres from macOS Sierra
body: <p>I'm on macOS Sierra and have had issues with installing Postgres. I installed it with <code>brew</code> and with the Postgres.app native app from postgresapp.com </p>
  
  <p>After using <code>brew uninstall postgres</code> and following Postgres.app's uninstallation instructions from their website. I'm still seeing the a 'PostgreSQL' user on my machine and when I run <code>sudo find / -name "*postgres*"</code> I still see a lot of output (some is pgAdmin4 and Postico which I'm happy to keep, since I'll be postgres soon), much of which is in the <code>/Library/PostgreSQL/9.6</code> directory including an actual postgres binary.</p>
  
  <p>Is it safe to just remove the entire directory? How do I completely remove Postgres from my machine so I can start from scratch?</p>