Is there a tutorial or how-to for setting up Adminer to work with
postgres on a localhost connection?

I am not a real brainiac when it comes to deciphering documentation.
Using this article
https://www.digitalocean.com/community/articles/how-to-install-and-use-phppgadmin-on-ubuntu-12-04
I was able able to set-up phpPgAdmin but I am more comfortable with
Adminer and like it a lot.