Pentabarf
Conference planning software written in Ruby using the Rails framework.
Momomoto
Object-relational mapper for PostgreSQL in Ruby. It features support for combined primary keys, support for stored procedures, and support for schemas. Metadata for tables, views, and stored procedures are fetched directly from the database to keep declaring classes as simple as possible.
Sita
Static code analysis tool to find sql injection vulnerabilities in PL/pgSQL code.
Sedusa
Web application fingerprint library for nmap.