pocke/activerecord-originator

A RubyGem adding SQL comments to indicate the origin of the SQL

brynary/arel

A Relational Algebra

khibino/haskell-relational-record

This repository includes a joined query generator based on typefull relational algebra, and mapping…

tenderlove/ruby-glossary

Just a glossary of terms I've found in Ruby source code

lyons/ExKanren

Relational programming in Elixir

activerecord-hackery/squeel

Active Record, improved. Live again :)

jimweirich/rake

A make-like build utility for Ruby.

sstephenson/sprockets

Rack-based asset packaging system