使用 Markdown 编写书籍内容，通过 burr 将其转换成 PDF，ePub 和 Mobi 格式电子书。

Supports JSON content, custom HTTP headers, and post-processing of extracted content.

logstash-devutils gem is meant to be used as a development dependency from other plugins/gems.

The new de-facto for API testing your Rails application

Extracts date, time, and message information from naturally worded text.

Ronn-NG builds manuals in Unix man page and HTML format from Markdown. Ronn-NG is a modern, maintained fork of the original Ronn.

webgen is used to generate static websites from templates and content files (which can be written in a markup language). It can generate dynamic content like menus on the fly and comes with many powerful extensions.

Provides algebraic type definitions and pattern matching

A simple gem that audit ActiveRecord models' attributes or methods by taking snapshots and diff them for you. Starting from scratch to work with Rails 3.2.2 onwards

Embulk is an open-source, plugin-based bulk data loader to scale and simplify data management across heterogeneous data stores. It can collect and ship any kinds of data in high throughput with transaction control.

FFI bindings for Aspell

Mayu Live is a live updating server side VirtualDOM framework for Ruby, inspired by modern frontend tools that exist in the JavaScript ecosystem.

Bulk mailer with remote control (drb server)

okf-tui is a full-screen terminal UI over OKF (Open Knowledge Format) bundles. It reads a bundle in the order the spec intends — index.md, log.md, then each directory — renders concept bodies as markdown, and finds within them. It browses and configures the per-user bundle registry, switches the ...

You can use datasets easily because you can access each dataset with multiple ways such as `#each` and Apache Arrow Record Batch.

Serif is a static site generator and blogging system powered by markdown files and an optional admin interface complete with drag-and-drop image uploading.

The transloadit gem allows you to automate uploading files through the Transloadit REST API

The transloadit-rails gem allows you to automate uploading files through the Transloadit REST API

YardJunk is structured logger/error validator plugin for YARD documentation gem.

Almanac is the most elegant mountable blog engine that can be easily hooked up in the existing Rails application.