Requires PostgreSQL 9.0+

1) Copy/rename database/config-sample.sql to database/config.sql,
2) Set the web app's user name and the database's name in database/config.sql,
3) Run the database.sql script from psql,
4) Copy/rename includes/config-sample.inc.php to includes/config.inc.php,
5) Set user name / password in includes/config.inc.php,
6) Copy/rename site/.htaccess.sample to site/.htaccess,
7) Update the rewrite rules in site/.htaccess as necessary.

Ideally, only the site/ directory should be available through the web server.