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Comment by Alifatisk | Hacker News Reader

Woah, Ruby has become fast, like really fast. What's even more impressive is TruffleRuby, damn!

It's Oracle https://github.com/oracle/truffleruby Double Damn!

It's open source under Eclipse Public License version 2.0, GNU General Public License version 2, or GNU Lesser General Public License version 2.1.

Making it easily fork-able should Oracle choose to do something users dislike.

Holy! I know TruffleRuby is Open Source but I somehow always thought Graal ( Which TruffleRuby is based on ) wasn't open sourced.

Note that Rails doesn't work on Truffle and from what I understand, won't anytime soon.

Which is disappointing since it has the highest likelihood of making the biggest impact to Ruby perf.

Huh, what exactly doesn't work? Their own readme says "TruffleRuby runs Rails and is compatible with many gems, including C extensions." (https://github.com/oracle/truffleruby)

Truffle:

  TruffleRuby is not 100% compatible with MRI 3.2 yet

Rails:

  Rails 8 will require Ruby 3.2.0 or newer

https://github.com/oracle/truffleruby

https://rubyonrails.org/2024/9/27/this-week-in-rails

That doesn't mean Rails won't run on TruffleRuby. TruffleRuby may not implement 100% of MRI 3.2, but that doesn't mean it doesn't implement all the parts that Rails needs.

Is it possible that those two statements taken together means truffleruby can run rails 8?

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