The Guide to Cuba will teach you how to create a Ruby web application from scratch using Cuba. Cuba is a micro framework written by Michel Martens (@soveran). It is open source, and you can have a look at the code here.
Some Ruby frameworks can be bloated and offer functionality you don't need. We'll teach you how to use Cuba together with small and simple Ruby libraries to customize your stack. By applying this minimalist philosophy you achieve more flexibility, less complexity and maintainable code.
This book is a work in progress and is licensed under the CC BY-NC-SA 4.0 license.