A modern web server and application server for Ruby, Python and Node.js, optimized for performance, low memory usage and ease of use.

Compute MD5, SHA-1, SHA-256, SHA-512, and CRC32 checksums for strings and files. HMAC-SHA256 and HMAC-SHA512 with timing-safe verification. File checksums use streaming reads for constant memory usage. Supports generic dispatch via digest/file_digest, multi-algorithm single-pass computation, mult...

The PDF::Reader library implements a PDF parser conforming as much as possible to the PDF specification from Adobe

Jetpants is an automation toolkit for handling monstrously large MySQL database topologies. It is geared towards common operational tasks like cloning slaves, rebalancing shards, and performing master promotions. It features a command suite for easy use by operations staff, though it's also a ful...

An Action Dispatch session store backed by an Active Record class.

ActiveRecord connection adapter for PostGIS. It is based on the stock PostgreSQL adapter, and adds built-in support for the spatial extensions provided by PostGIS. It uses the RGeo library to represent spatial data in Ruby.

Note: Version 1.0.0 introduces some breaking changes. Make sure to read the documentation in case something is breaking at your end. 'cmdserver' is a simple, multi-threaded, module based and extensible command server with a straight forward API. Much of the functionality relies ...

lastfm-cli lets users choose radio stations, play songs, skip songs, "love" them or "ban" them. Multiple users can control one last.fm stream (playing through the office or home sound system, for instance) as long as the computer running lastfm-cli is accessible on the local n...

KairosChain is a Model Context Protocol (MCP) server for self-managed, evolvable AI skill definitions. It combines Pure Skills design (Ruby DSL/AST) with a private blockchain, enabling AI agents to define, evolve, and audit their own capabilities through self-referential skill management. Support...

When this gem is loaded and activated inside your rails app, your MySQL connection adapter for ActiveRecord will be monkey-patched. The patch simply tweaks it to store all boolean "true" values as negative one instead of positive one inside your TINYINT columns. It also patches it to recognize an...

SSL Transport Agent is a foundation for all applications that may be classified as Transport Agents (TA). A TA listens to one or more TCP ports and when a connection is made to a listening port, a process is dispatched to communicate with that connection. The most common examples of this type of ...

This simple middleware sets anything in the X-#{prefix}-Cookie header to Cookie, and in the response will copy anything in Set-Cookie to X-#{prefix}-Set-Cookie. This can be useful to enable session management where an HTML client is accessing your API, which doesn't fully support cookies. We have...

SimpleHKP is a simple Ruby/rack based GnuPG extendedHKP key and identity server packaged as a standard Ruby Gem. As such it conforms to an {extended version}[http://stephengaito.github.io/rGem-simple-gnupg-keyserver/] of {the OpenPGP HTTP Keyserver Protocol (HKP) (draft-shaw-openpgp-hkp-00....

The Hub SSO Library supports single sign-on across multiple Rails applications on the same host. The Hub application provides account management facilities (sign up, log in, etc.). The library provides read-only access to data set up by the application. Using the library, exte...

DSL for temporally files read/write in the object oriented way (system tmp). Manage tmp files in the super easy way! This dsl let you have simply way to commands and create variables on file system by default in the actual systems (cross platform) tmp folder. Sometimes it can be useful for multi...

isort automatically sorts and organizes import statements in Ruby files. It groups imports into sections (stdlib, third-party, first-party, local), sorts alphabetically within each section, removes duplicates, and preserves comments. Supports require, require_relative, include, extend, autoload, ...

Argser (from 'ARGuments parSER') is a library that aims to simplify the process of parsing arguments in command line scripts written in Ruby. It provides an easy way to specify which parameters are valid, their type or format, error conditions, description, etc. In that way, it reduces the need t...

Portable Move Notation (PMN) v1.0.0 is a rule-agnostic, JSON-based format using arrays to represent deterministic state-changing actions in abstract strategy board games. This gem provides a consistent Ruby interface for serializing, deserializing, and validating moves across Chess, Shogi, Xiangq...

There are tons of books yelling about how you shouldn't repeat yourself, how you should keep it DRY(Don't Repeat Yourself). Well, we tried hard to keep the code clean, but when it comes to blog we wrote, we seems quite ignorante to the DRY principle. During the whole developement process, there...

English: Gem that scrapes spanish synonyms from various sources. Currently three sources are supported: Datamuse, Educalingo y NLTK. Spanish: Gema que permite consultar por sinonimos en español desde los sitios: Datamuse, Educalingo y desde la interfaz nltk de python.