This document provides instructions on how to build a web application using the Portofino web framework. Portofino allows for the creation of web applications from existing databases and includes features like CMS functionality, page customization using Groovy, and native support for database schema management with Liquibase. It utilizes common technologies like Hibernate, Stripes, and EhCache. The document outlines how to start a new project, create pages, manage authorization and permissions with Apache Shiro, and provides notes on customization options. It also lists some organizations that currently use Portofino in their applications.