Percy Grunwald explores unicode matching in Elixir and shows how a trivial exercise can teach useful real-world lessons about handling Unicode in Elixir.

Ryan Palo explores the concepts of 'intentional coding' and 'design intent' in this excellent walkthrough of the Grains exercise in Bash. Thinking of ways to solve a problem is easy- designing one that communicates your thought process and goals to others is the hard part.