io.js vs Trailblazer: What are the differences?
io.js and Trailblazer belong to "Frameworks (Full Stack)" category of the tech stack.
"Compatible with NPM" is the primary reason why developers consider io.js over the competitors, whereas "Trailblazer allows creating sane, large apps in Rails" was stated as the key factor in picking Trailblazer.
Trailblazer is an open source tool with 2.91K GitHub stars and 129 GitHub forks. Here's a link to Trailblazer's open source repository on GitHub.