I saw this video today and thought it might interest some people here. If you have alternate opinions on what makes a good “next language”, post a comment below.
I like that “elixir + rust” was listed as a good combination to know. 
Edit: see also Rustler: Extending Elixir and Erlang with Rust
What’s a good tech stack to learn next?
A common question is what programming language or what framework should learn next? It really depends on what you already know and what your goals & needs are so, I recommend stepping back and looking at it from a higher level. What compliments what you already know? What gaps to you need a new tool to fill in?
