Inesita 
Inesita is a web frontend framework for fast building browser application using Ruby. It uses Virtual DOM for page render.
Description
More detailed description here.
Examples
For list of examples go here
Project
inesita
Frontent web framework for Opal
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
Pull Requests
Development
Dependencies
Development
Runtime
Project Readme