Ruby bindings for ZBar, a barcode recognition library. Uses FFI to interact with the underlying C library, but has no other dependencies.

Concise DSL for generating OpenAPI Specification 3 (OAS3) JSON documentation for Rails application.

Acmesmith is an [ACME (Automatic Certificate Management Environment)](https://github.com/ietf-wg-acme/acme) client that works perfect on environment with multiple servers. This client saves certificate and keys on cloud services (e.g. AWS S3) securely, then allow to deploy issued certificates onto your servers smoothly. This works well on [Let's encrypt](https://letsencrypt.org).

Easy and modular way to secure applications and handle permissions.

Allows to define form inputs and filters by relation for ActiveAdmin resource pages using Ransacker to dynamicaly load items while user is typing symbols in filter

Simple gem that allows you to run multiple ActiveRecord::Relation using hash. Perfect for APIs.

ActiveOperation is a micro-framework for modelling business processes.

N+1 count query killer for ActiveRecord

Yet Another N+1 COUNT Query Killer for ActiveRecord

Add relational OLAP-like functionality for ActiveRecord

A Ruby Gem for using aliyun sms service, in accordance with aliyun sms 2017-05-25 version api. 适用于阿里云短信服务最新的 2017-05-25 版接口.

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Android Push Notification in Ruby: simple, fast, high-quality client for FCM (Firebase Cloud Messaging)

The appengine gem is a set of classes, plugins, and tools for integration with Google App Engine. It provides access to the App Engine runtime environment, including logging to the Google Cloud Console and interrogation of hosting properties. It also provides Rake tasks for managing your App Engine application, for example to run production maintenance commands such as database migrations. This gem is NOT required to deploy your Ruby application to App Engine.

Record the operation of a Ruby program, using the AppLand 'AppMap' format.

Approval flow for Rails

Aptible CLI

Arduino Firmata protocol (http://firmata.org) implementation on Ruby.

Like `ActiveModel::Attributes` but less fluffy and more attribute-y.

Attributes for plain old Ruby objects. No dependencies, only simplicity and clearness.