> The best reason to use either Ruby or Crystal is because you want to and leave it at that. Language religious wars are idiotic, but pros/cons tradeoffs shoul

> The best reason to use either Ruby or Crystal is because you want to and leave it at that. Language religious wars are idiotic, but pros/cons tradeoffs should be discussed . There is/was a great deal of fragmentation. TruffleRuby is built on awesome tech, to be sure. Rubinius (rbx) and JRuby were awesome too. I remember the grand attempt by RedHat to make TorqueBox a better, enterprisy Rails platform on JRuby. Yeah, Crystal is neat when it works, based on a slightly different language, static compilation, and LLVM. The gotchas include: it's too incompatible with Ruby to be a drop-in replacement, has numerous language oddities and deficiencies, and tends to uncover runtime bugs within minutes of use. I think for needing speed and after profiling a critical section to replace with native code, it's better to opt for a native extension such with Rust and https://usehelix.com https://usehelix.com to use with standard Ruby (mri). Hopefully, 3.5-dev+ zjit bears fruit. I don't do much Ruby development anymore because Elixir and Rust exist. (And also rustler!)