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Re:Tiny JITs for a Faster FFI by FooBarWidget on Wednesday February 12, 2025 @10:16PM (#43032303)
Sorbet is the most mature option. RBS barely has any tooling, while Sorbet works well.

It definitely isn't at the level of Typescript adoption, even relatively speaking. And it's more clunky than Typescript. But it works well enough to be valuable.

Re:Tiny JITs for a Faster FFI by Lio on Thursday February 13, 2025 @03:36AM (#43033964)
It's interesting that RBS support is used by IRB for type completion.

There is also work to settle on an inline form of RBS so I could see it taking over from Sorbet annotations in the future.