Using Peacekeeper, you can develop models separately from the ORM used to persist data.

Kodio lightweight data access layer for ruby

Simple system overview server

A simple pg handler. Translates Structs into PG and back.

pg_shrink makes it simple to shrink and sanitize a PosrgreSQL database

Handy helpers to create PostgreSQL Triggers

A collection of tools to dissect and report on phishing emails

Photostat is a collection of command-line utilities for managing photos / syncronizing with Flickr - first version doesnt do much, it just helps me organize my files and upload them to Flickr

Piccle uses the EXIF data present in your photographs and uses it to build a website that lets visitors browse by camera, tag, location, and more.

Pinport is a command-line tool for importing a large list of PINs (Personal Identification Numbers) into a MySQL Database

Nested set implementation, ported from the Awesome Nested Set Active Record plugin.

Find airplanes for sale and their approximate locations

Toshi backend for the pochette wallet library

Extract infopages from a Pombola database dump

A command line pomodoro timer

Ruby and rails repo tool

Personal Offline TAsk Manager - POTAM

An extension to the Potluck gem that provides some basic utilities for setting up and connecting to Postgres databases, as well as control over the Postgres process.

Predicate provides a simple class and processors to encode and manipulate (tuple) predicates

Prequel is the database library I've always wanted.