Objects are functions! Treat any Object or Class as a Proc (like Enumerable but for Procs).

Generate data from contracts

A simple time tracking application

Generative or property based testing for Ruby

A tool for generating sheets of QR codes with an optional message.

Contracts for String Coercion (see https://github.com/egonSchiele/contracts.ruby)

Union, Intersect, and Difference set operations for ActiveRecord (also, SQL's UnionAll).

Ruby is already pretty lispy let's take it the rest of the way.

An nREPL server & client for Ruby

An an experiment in simplicity for web development

A Ruby object that represents a given time-of-day separate from any Date information. Makes it easy to perform work time calculations.

Thread-safe immutable objects that provide delegation and basic validation to hashes.

A simple query interface for pulling deeply nested data from records.

An implementation of multiple dispatch for Ruby. Also known as generic-functions or multi-methods.

Relational programming for Ruby