TruffleRuby runs Rails and is compatible with many gems, including C extensions. TruffleRuby is not 100% compatible with MRI 3.2 yet. Please report any compatibility issues you might find. TruffleRuby passes around 97% of ruby/spec, more than any other alternative Ruby implementation.
Wouldn’t this provide massive gains for the Rails ecosystem once delivered?
(And with the GraalVM licenses changes to be more favorable/permission, I have to imagine there would be significant adoption)