[blacksmoke16]

> How much is Ruby knowledge assumed though?

It doesn't cover the absolute basics of programming, but the only references to Ruby are mainly in the introduction. It's written from the viewpoint of someone learning Crystal, so you should have no problem following along, even without Ruby experience.

[sundarurfriend]

Thanks! I hope Crystal continues to grow, as a language and in terms of popularity. I always liked the ergonomics of Ruby, but never had a reason to actually get into it. Nowadays, I find myself wanting to produce binaries of little utilities I need, and (my main language) Julia isn't great for that (as yet!). I'm hoping Crystal fills that gap while being equally fun to use.