UUDIX: A fast, and cryptographically secure UUID (v4) generator for Crystal.

Seeing projects like this one always puts a smile on my face, because I really like to see Crystal having a heartbeat. It might just be my personal background, but the language brings everything to the table that I am looking for in a fits-most-use-cases programming language. Crystal is _fast_, has a type system that stays out of my way as much as possible and (coming from Ruby) a really legible, expressive syntax.

Great reasoning on allocation seemed to have paid off, looking at your benchmarks. Keep up the great work and let's make Crystal a thing!