Based on Pete's Keen approach https://github.com/peterkeen/mmp-builder from his Adventures in Self Publishing https://www.petekeen.net/adventures-in-self-publishing

The myERP API gem is a lightweight gem for accessing the myERP REST web services

mysqlnoio allows you to execute commands while MySQL is locked.

Nagira -- Nagios RESTful API Web services API for Nagios: host status (R/W), service status (R/W); read-only access to configuration objects: hosts, services, contacts, escalations; read-only Nagios server configuration and Nagios runtime environment

naming provides name and value container with useful functions

nanoc graphviz filter plugin

nanoc-gzip.rb integrates gzip into nanoc

nanoc-tidy.rb = nanoc + tidy-html5

nanoc-weasyprint.rb integrates weasyprint into nanoc.

nanoc-webpack.rb = nanoc + webpack

A gem for managing composed attributes, especially natural keys and url slugs.

Define and render complex navigation menus

A command line tool for generating a static site.

A persistence layer for nelumba.

Allows you to sync web content on Dropbox with a Ruby-based CMS

Convert nested OpenStruct to Hash

Talk to Netdot via REST with Ruby

NTP client library with improved functionality.

API functionality for Neurio energy monitoring devices. See http://neur.io/

Handling the input and output of people's ages in years and months