Ampersand.js vs Espresso.js: What are the differences?
What is Espresso.js? React Meets Backbone for a Minimal MVC. Espresso.js is a tiny MVC framework inspired by Backbone and React with a focus on simplicity and speed. We've aimed to bring the ideas of unidirectional data flow of Flux to a simple, Backbone-style library.
Ampersand.js and Espresso.js are both open source tools. It seems that Ampersand.js with 818 GitHub stars and 52 forks on GitHub has more adoption than Espresso.js with 523 GitHub stars and 20 GitHub forks.