I used to be happy with Ruby, but learning Scala and then Crystal really changed my mind about where the line ought to be drawn wrt to expressiveness and safety

I used to be happy with Ruby, but learning Scala and then Crystal really changed my mind about where the line ought to be drawn wrt to expressiveness and safety. I don't and have never used the vast majority of Ruby's metaprogramming features, but I'm the odd duckling in an equation where probably 95% or more Ruby programmers are Rails programmers, and I am not. I mean, I can, but I don't. That factor makes less sympathetic to the majority of Ruby users who won't have any stake in a project like what I'm thinking about. And that's ok. And either way, if they want to make use of all those features then they will or maybe already have realized that Ruby already does what they want and Ruby3's care for backwards compat surely will cater to that majority in order to keep them on board. Metaprogramming I think is the primary style of Ruby, and that's OK. The Crystal team has essentially reprogrammed the way I think about how it should feel to write good OO code. Scala did the same thing for a time, but just the sheer pain of SBT drove me away. With Crystal, Having parametric modules is an incredible advantage. I can write mixins essentially like traits that specialize on some new type in my program. I have to consider how my methods end up typing out, and that changes the way I think about how I'm going to get from here to there. With Ruby, I really like that left-to-right idea of chaining until I arrive at the structure I want, and the more Crystal I write the more I realized how irritating it was to hunt down Ruby bugs by: whatever.tap{ |o| puts "#{o} is a: #{o.class} here" } or even deeper with responds_to? or whatever I'm trying to figure out. With crystal, all I have to do is look at the stacktrace, it is getting a nil where it shouldn't be at SomeClass#some_method on line 230842349, and I immediately can work on the bug at the source of it, instead of the tedious extra step of finding it. Being able to make Ruby do magic was never part of the equation that held me a romantic captive to Ruby, it was always the succinctness. Elixir came close, but Crystal gets me all the way there. If nothing else, maybe I will learn something new trying to find a subset of ruby3 that I can transpile. I haven't read much about the new JIT, but if you're happy about it, maybe I should stop procrastinating and find out about it.