What's Cuba?

To begin, let's take a moment to answer "what is Cuba?".

Cuba is a web application micro-framework written in Ruby by Michel Martens. It rides on Rack so we have the benefits of middleware, Rack libraries, and a variety of web servers for free.

Cuba is minimalist by design (203 lines of code) which makes it faster compared to other web frameworks. Also, it doesn’t make assumptions about the "best" way to do things. That gives us the freedom to choose the proper tools for the job.

Since Cuba doesn’t ship with all the tools we need to create our example application, this book will also introduce other libraries that share the same design philosophy. Together, they make web development simple, understandable and fun.