Bitcoin is shaking the world, but the real deal lies underneath: the blockchain. Blockchain is easy to understand for some and impossible to grasp for others, but this Ruby implementation might help all of you create your own better-than-bitcoin cryptocurrency. Read more.
Speaking of behemoths... Leonardo Brito was presented with a difficult task: improve the spec speed of a 6-year-old Rails app. He stepped one level up from the generic “how to speed up your testing suite” tutorials and shared his exceptional results. Read more.