PostgreSQL is a reliable and mature database. In this section, we will explore how to start an instance of this database in a container, and how to connect to it from Rust using third-party crates. We will look at simple interactions with this database, and at the use of connection pools to get extra performance. We will start an instance of the database with Docker and create a tool to add records to a table and to query the list of added records before printing them to a console.