Exactly. Installing postgres on any Debian system is a one line "apt-get install". The only part that might be considered complicated is if you want to open up

Exactly. Installing postgres on any Debian system is a one line "apt-get install". The only part that might be considered complicated is if you want to open up the server to non-local network traffic as you have to edit both the pg_hba.conf and change the listen address in postgresql.conf. It's like that so that it is secure by default. Anyone who thinks that's too complicated doesn't understand what that means or why it's important.