Decorator style assertions and type check library for Contract programming.

mpvlib provides Ruby bindings to the MPV media player, via libmpv.

An album-based music catalog/player.

Normalizr format JSON response generator

Formats a number into a Japanese Yen string (e.g., 12万3,456円).

omniauth strategy using Google Cloud IAP

Create and analyze musical pitches from MIDI names/numbers and scientific pitch notation (SPN)..

replace status code from 403 to 404 with Rack::Access in 'rack-contrib' gem.

A Rack middleware for cleaning ActiveRecord connection when raised Exception.

RockMotive provides DCI architecture to Rails

https://github.com/jneen/rouge/pull/441

== Rouge::Lexers::Wenyan {Rouge}[https://github.com/rouge-ruby/rouge] lexer for {Wenyan}[https://wy-lang.org/], programming language for the ancient Chinese.

manage members' karma

A friendlier system().

Rusholme lets you convert a keyboard input to MIDI note number, and send them to your MIDI player via OSC.

notification mail sender via sendgrid API

Generates unique pseudo-random identificators based on shuffled seed arrays

Simple HTML builder.

Simple::CommandParser is a simple command parser.

A very simple option parser for ARGV.