Administrador - The rails administration interface.

Common tools for the Belts game engine

Modular components to encapsulate data and markup in Prawn

It includes maths, datetime, and rspec access test libraries.

Tools for manipulating colors in various color spaces

Trees, Heaps, Timers, Error fitting, etc

A Ruby object-oriented search library for directed and undirected graphs based loosely on Dijkstra's algorithm

Daru (Data Analysis in RUby) is a library for analysis, manipulation and visualization of data. Daru works seamlessly accross interpreters and leverages interpreter-specific optimizations whenever they are available. It is the default data storage gem for all the statsample gems (glm, timeseries...

Package of validations commonly used in Defra Rails based digital services

A collection of Stern-Brocot based models and methods

giblish generates indexed and searchable documents from a tree of asciidoc files.

Generating grids of shapes based on twisty puzzles

IrtRuby is a comprehensive Ruby library for Item Response Theory (IRT) analysis, commonly used in educational assessment, psychological testing, and survey research. Features three core IRT models: • Rasch Model (1PL) - Simple difficulty-only model • Two-Parameter Model (2PL) - Adds item discri...

Labrat is a linux command-line program for quickly printing labels. Labrat uses the wonderful Prawn gem to generate PDF files with label formatting in mind. With labrat properly configured, printing a label is as simple as: $ labrat 'Income Taxes 2021 ~~ Example Maker, Inc.' And you will get ...

An adapter for various NLU web services like Aws Lex, Google Dialogflow etc.

Ruby implementation of pHash library, uses VIPS for image processing

Generate sets of labels or stickers programmatically using Prawn PDF.

Provides a numeric class Quaternion which is similar to a built-in class Complex.

Quby is a Rails engine that can render and update answers for questionnaires defined in a custom DSL.

This should probably never be used for anything but learning.