Jekyll Picture Tag is a liquid tag that adds responsive images to your Jekyll static site. It follows the picture element pattern, and polyfills older browsers with Picturefill. Jekyll Picture Tag automatically creates resized source images, is fully configurable, and covers all use c...

Pure Ruby readonly serializers for the JSON:API spec.

Deploy a middleman built site over rsync, ftp, sftp, or git (e.g. gh-pages on github).

NMatrix is a linear algebra library for Ruby, written mostly in C and C++.

Numo::NArray - New NArray class library in Ruby/Numo.

A type information generator, merger and parser for Sorbet and Ruby 3/Steep

Ruby wrapper for the Pivotal Tracker API

Distrubuted mutex using Redis

active_admin skin

AnyCable integration for Rails

Code Obscure Tool.You can use it simplely

Bit fields for ActiveRecord: This gem lets you use a single integer column in an ActiveRecord model to store a collection of boolean attributes (flags). Each flag can be used almost in the same way you would use any boolean attribute on an ActiveRecord object.

Fluentd filter plugin to add geoip

DigitalOcean fog provider gem

OmniAuth strategy for Sign In with Apple

dump headers, sections, extract resources of win32 PE exe,dll,etc

Use ActionMailer with SendGrid's Web API.

Sidekiq Batch Jobs Implementation

Lightweight state machine extracted from ActiveModel

Twirp is a simple RPC framework with protobuf service definitions. The Twirp gem provides native support for Ruby.