Crystal Language Goals
- Ruby-inspired syntax.
- Statically type-checked but without having to specify the type of variables or method arguments.
- Be able to call C code by writing bindings to it in Crystal.
- Have compile-time evaluation and generation of code, to avoid boilerplate code.
- Compile to efficient native code.
more on http://crystal-lang.org/
I've started a project with crystal, but I did not contribute for a while.
Just have a look at Crystal. You may like it. Also it has a friendly community.