This is built with Node.js.
From the docs: "A Meteor application is a mix of JavaScript that runs inside a client web browser, JavaScript that runs on the Meteor server inside a Node.js container..."
From the docs: "A Meteor application is a mix of JavaScript that runs inside a client web browser, JavaScript that runs on the Meteor server inside a Node.js container..."
Node.js is very low level and is more analogous to Ruby than Rails.