It’s really nice that you are writing an interpreter in Elixir! Welcome to the club! 
I really hope to be able to continue working on Jux, the minimalist actor-model functional forth-like language at some point… so much other stuff that takes priority first though. 
Could you tell us a little bit more about the design ideas behind Dwarf?
Thanks @Qqwy !
I am actually writing this language just to be a very simple and small language ( hence the name ). The aim is not to make anything new or fancy but to show a practical way of writing an interpreter. I found that when I wanted to learn how to build one, I could not find many practical advice and examples. In addition, I wanted to put in practice the theory that I am learning 
My area of interest is concurrency so I might use it to test some ideas in the future. For the syntax rules, you can see a definition in BNF form of the language in the README. There are also examples of source program in the benchmarks folder.
I have written a new article called “How to write a recursive descent parse using Elixir” on my website.
I have also added while loops to the dwarf language !
