What are some alternatives?
When comparing Deku and Inferno, you can also consider the following products
Polymer - Polymer is a library that uses the latest web technologies to let you create custom HTML elements.
Vue.js - Reactive Components for Modern Web Interfaces
Riot.js - Riot allows teams to communicate across a wide range of collaboration apps.
Aurelia - Next gen JS framework written with ES6 and ES7. Integrates with Web Components. No external dependencies except polyfills.
Marko Widgets - Marko Widgets extends the Marko templating engine to provide a simple and efficient mechanism for binding behavior to UI components rendered on either the server or in the browser.