The standard quickstart deploys a single machine Netarchivesuite installation with derby as the database.
Installing a quickstart installation using postgresql as the database is a little bit more complicated.
The information for installing the postgresql databases for the quickstart is described in Choose an Installation Scenario (Section 3.2).
After having created the admindb and harvestdb databases you can install Netarchivesuite using the same procedure as with derby but using a deploy-script adapted to postgresql, viz. https://raw.githubusercontent.com/netarchivesuite/netarchivesuite/master/deploy/distribution/src/main/resources/examples/deploy_standalone_example_postgresql.xml instead of https://raw.githubusercontent.com/netarchivesuite/netarchivesuite/master/deploy/distribution/src/main/resources/examples/deploy_standalone_example.xml