When I want to take the next step with a new language, I usually find a popular or interesting framework/library for that language, and I do a deep dive into th

When I want to take the next step with a new language, I usually find a popular or interesting framework/library for that language, and I do a deep dive into the codebase. Set it up for local development, then step through calls with a debugger, look at the whole call/request lifecycle, start to tinker with the subsystems.. It's a great way to see the real-world usage of all the core concepts you've been introduced to in the intro/learning courses or tutorials, and be exposed to more advanced patterns. For Elixir, the obvious choice would be Phoenix if you're on the web app side of things..