I believe the road to success for smaller communities / PLs is to excel in one thing and then expand further.

I've been watching this language, but seems the ecosystem is small? Plus the libs I do find are 1-2 years old; I'm unsure of their compatibility, & I'm not a fan of beta testing anymore...

This blog post from core developers will give you a better idea about the current state of Crystal https://crystal-lang.org/2016/12/29/crystal-new-year-resolut...

Crystal home page: https://crystal-lang.org