Types in Ruby, similar to TypeScript developer.squareup...
There is a circular logic somewhere when a computer language years ago boasted: Look Ma! No types (duck typing) and today someone boasts Look Ma! Types! (sigh).
I like how TypeScript supports types. You can use dynamic parts and you can use type annotations when necessary. Best of both worlds.
Really exciting - I tried static typing in Ruby with Sorbet (made by Stripe) and it worked well, despite being in early stages: would this make it superfluous?
Blog post mentioned they will inter-operate. So I think if you have type annotations with Sorbet then it will work with this as well.