One of the most difficult tasks I met during Hanami development is to write integration tests for the Command Line Interface (CLI). This challenge required a deep knowledge of the Ruby toolchain.

Using global state in software programs, is handy for development, but evil to maintain. It can easily become source of bugs. We’ll learn from Hanami source code why this is a problem and how we fixed it.

A short story about OOP, interfaces and soft typing.

Use MRuby with H2O and Redis to build a Rack JSON API that servers 25,000+ requests per second.

Do you need a fast and lightweight JSON API app? It must be powerful, flexible, quick to develop and easy to deploy? There is a simple solution for all these requirements: to use Lotus gems to build it.