the cloud (Dynamic Environments) § Ruby (EventMachine, Sinatra, AMQP), RabbitMQ, Redis § Messaging oriented architecture. Messages are JSON objects. (Pub/Sub) § Ability to re-use existing Nagios plugins § Plugins and handlers (think notifications) can be written in any language § Designed with modern configuration management systems such as Chef or Puppet in mind § Lightweight, less than 1200 lines of code