Can you give me some more information on how you’d like it to work please? I’ll have a think about how we can incorporate something here then if that’s what you want 
Perhaps something like this?
- Create a sub-section under ‘Learning Elixir’ - perhaps call it Exercises.
- We post challenges/tasks in different threads (and label them, beginner, intermediate, expert etc).
- Then everyone can post their answers and discuss things in the thread
