MGParser (MGP) is a tool which makes analysis of Mediatrix ISDN gateways debug a much simpler task

A thin and fast web server, with added neverblock support!

A Ruby DSL for OSC

A redirector, url mangler and webpage interceptor for the Squid HTTP proxy

MIDIOps is to automate some works with MIDI events

A pure Ruby Milter library

Embeddable runtime Pry-based REPL console

MinHTTP allows one to send and receive raw HTTP requests. It's a very thin wrapper around EventMachine's connect method with some SSL validation added.

A very small Ruby web server

Miniserver is a simple fast HTTP 1.1 server for Ruby/Rack applications.

Less-callbacks helper for EventMachine and minitest

minus5_daemon is a simple lib for crating Ruby daemons it is built on top daemons.rb (http://daemons.rubyforge.org/)

Starling is a lightweight, transactional, distributed queue server

Mock EM

Script to do "tail -f" on the "!watch" output from several MogileFS trackers.

Babylon is a framework to create EventMachine based XMPP External Components in Ruby.

A rails gem that allows you to briefly defer execution of tasks and return from requests faster.

MongoJob is a MongoDB-backed Ruby library for creating background jobs, placing those jobs on multiple queues, and processing them later.

Monorail Web-development and deployment framework

Amazingly simple IRC bot that handles everything via plugins with the exception of connecting.